Technical Service Bulletins (TSBs) for the 2015 Corvette are official communications between Chevrolet & their dealerships that describe processes for troubleshooting or fixing certain common problems.
All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.
This service bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining. Read More »
This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns. Read More »
This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. Read More »
This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers. Read More »
This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. Read More »
This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear. Read More »
This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear. Read More »
This technical bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear. Read More »
This technical bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear. Read More »
This Preliminary Information communication provides information to the technician the steps needed to diagnose and repair the vehicles that may have unwanted or phantom phone calls. Read More »
This technical bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT THE MEDIA ORIENTED SYSTEMS TRANSPORT BUS DIAGNOSTIC TOOL KIT (EL-51578) HAS BEEN RELEASED TO HELP DIAGNOSE ANY OF THE MEDIA ORIENTED SYSTEMS TRANSPORT ... Read More »
This technical bulletin provides a procedure to install a new power steering gear cooling duct to correct a customer concern on a DIC message that reads ?Service Power Steering Gear? and/or feeling a reduction in steering assist while ... Read More »
This preliminary information bulletin provides a procedure to install a power steering gear cooling duct for track use to decrease temperature with the steering gear. Read More »
"THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO INSPECT THE STEERING GEAR FOR A NORMAL CONDITION OF GREASE OR SEALANT ON EXTERIOR CASE OF GEAR DUE TO THE MANUFACTURING PROCESS." Read More »
This service bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer?s vehicles that exhibit vibration conditions without utilizing ... Read More »
This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns. Read More »
This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. Read More »
This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers. Read More »
This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer?s vehicles that exhibit vibration conditions without utilizing ... Read More »
This informational bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining. Read More »
This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer?s vehicles that exhibit vibration conditions without utilizing ... Read More »
Front Lower Ball Joint and Knuckle Inspection After Road Hazard Tire/Wheel Damage and/or Noise from Front End Some customers may comment on a ticking/clicking/metallic grinding noise heard from front suspension area or lash in ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts are being performed on customer?s vehicles that exhibit vibration conditions without utilizing the ... Read More »
This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts are being performed on customer?s vehicles that exhibit vibration conditions without utilizing the ... Read More »
This informational bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure, when diagnosing vibration concerns. Read More »
This informational bulletin was created to aid the technician in diagnosing the difference between a shock or strut that has a fluid residule from a possible external source from a leaking shaft seal. Read More »
This informational bulletin provides customers and dealership personnel with information on the common vehicle characteristic of tire hop / tire chatter during tight turns at parking lot speeds. Read More »
This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. Read More »
Information Regarding the Differences Between Fluid Leakage and Seepage This bulletin is intended to help identify the differences between what is considered a fluid leak and what is considered seepage. Read More »
This informational bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak. Read More »
This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. Read More »
Information Regarding the Differences Between Fluid Leakage and Seepage This bulletin is intended to help identify the differences between what is considered a fluid leak and what is considered seepage. Read More »
This technical bulletin provides a procedure to replace the left side rear axle housing cover to correct a condition of Warble Noise from the Rear of the Vehicle. Read More »
Information Regarding the Differences Between Fluid Leakage and Seepage This bulletin is intended to help identify the differences between what is considered a fluid leak and what is considered seepage. Read More »
This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation. Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer. Read More »
This technical bulletin provides a procedure to correct a condition of Brake Squeal or Squeak Noise Intermittently on Initial Brake Applies. Read More »
This technical bulletin provides a procedure to correct a condition of Brake Squeal or Squeak Noise Intermittently on Initial Brake Applies. Read More »
This technical bulletin provides a procedure to correct a condition of Brake Squeal or Squeak Noise Intermittently on Initial Brake Applies. Read More »
This technical bulletin provides a procedure to apply copper paste to the brake calipers to correct a condition of Brake Squeal or Squeak Noise Intermittently on Initial Brake Applies. Read More »
This Preliminary Information communication provides information to the technician on the step to diagnose and repair the vehicles that may have a shake or shudder during light throttle acceleration, between 30 and 65 miles per hour steady ... Read More »
This informational bulletin provides information on installing the correct tires for vehicles with the condition of under hard acceleration at higher speeds, the traction control light will flash. Read More »
This technical bulletin provides a procedure to replace either the front or rear rotors for the condition on a pulsation and/or vibration when they apply the brakes. Read More »
This preliminary information provides a procedure to apply lubricant to the front and rear disc brakes to correct a condition of a brake squeal or squeak noise on brake applies. Read More »
This Preliminary Information communication provides information to the technician about customers may inquire about a section in their owner's manual that addresses the use of high temperature brake fluid that should be used in their car ... Read More »
Brake Squeal or Squeak Noise Intermittently on Initial Brake Applies Condition/Concern Some customers may comment on a squeal or squeak noise from the front brakes. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have wheels that are collecting an excessive amount of brake dust. Read More »
This service bulletin provides information for cleaning the brake calipers that may have staining/discoloring on the paint of the brake caliper. Read More »
This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. Read More »
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that maynot move after being parked for extended period of time. Read More »
This Preliminary Information communication provides information to the technician about vehicles that maynot move after being parked for extended period of time. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Read More »
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
GENERAL MOTORS: PARTS FOR MOST VEHICLES, CLUTCH, MASTER CYLINDER ASSEMBLY ARE, REQUIRED AND REQUESTED, TO BE RETURNED AND NEED TO REORDER REPLACEMENT PARTS USING SAME PART NUMBERS. Read More »
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC
This preliminary information provides a procedure to apply lubricant to the front and rear disc brakes to correct a condition of a brake squeal or squeak noise on brake applies. Read More »
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER
This technical bulletin provides a procedure on how to properly clean the brake calipers without damaging the paint on them for concerns regarding staining/discoloring to the brake caliper paint Read More »
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:PADS
This preliminary informational bulletin provides a procedure for applying lubricant to the front and rear brake pads to correct a condition of a break squeal or squeak noise on brake applys Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have will not move after being parked for extended period of time. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLE THAT MAY HAVE A "CHANGE BRAKE PADS" MESSAGE THAT APPEARS IN THE DRIVER INFORMATION CENTER. Read More »
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:ROTOR
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPLACE THE BRAKE ROTOR(S) TO CORRECT A CUSTOMER CONCERN OF PULSATION AND/OR VIBRATION WHEN THEY APPLY THE BRAKES DUE TO EXCESSIVE LATERAL RUNOUT. Read More »
This preliminary information provides a procedure to apply lubricant to the front and rear disc brakes to correct a condition of a brake squeal or squeak noise on brake applies. Read More »
This service bulletin provides information for cleaning the brake calipers that may have staining/discoloring on the paint of the brake caliper. Read More »
This technical bulletin provides a procedure to apply copper paste to the brake calipers to correct a condition of Brake Squeal or Squeak Noise Intermittently on Initial Brake Applies. Read More »
This technical bulletin provides a procedure on how to properly clean the brake calipers without damaging the paint on them for concerns regarding staining/discoloring to the brake caliper paint Read More »
This Preliminary Information communication provides information to the technician about diagnosing a vehicle that has a "Change Brake Pads" message that appears in the Driver Information Center. Read More »
This Preliminary Information communication provides information to the technician about vehicles that maynot move after being parked for extended period of time. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLE THAT MAY HAVE A "CHANGE BRAKE PADS" MESSAGE THAT APPEARS IN THE DRIVER INFORMATION CENTER. Read More »
This preliminary informational bulletin provides a procedure for applying lubricant to the front and rear brake pads to correct a condition of a break squeal or squeak noise on brake applys Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have will not move after being parked for extended period of time. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLE THAT MAY HAVE A "CHANGE BRAKE PADS" MESSAGE THAT APPEARS IN THE DRIVER INFORMATION CENTER. Read More »
This technical bulletin provides a procedure to replace the front and/or rear brake rotor to correct a customer concern on a pulsation and/or vibration when they apply the brakes caused by excessive lateral runout. Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPLACE THE BRAKE ROTOR(S) TO CORRECT A CUSTOMER CONCERN OF PULSATION AND/OR VIBRATION WHEN THEY APPLY THE BRAKES DUE TO EXCESSIVE LATERAL RUNOUT. Read More »
This technical bulletin provides a procedure to validate if the parking pawl actuator is not working as intended, causing the parking pawl to engage while driving. Read More »
This preliminary informational bulletin provides information regarding the normal characteristic of instrument panel red brake light intermittently comes on. Read More »
This preliminary informational bulletin provides diagnosis and repair information to correct a customer concern of alleged no park or vehicle rolls in park or park will not hold. Read More »
This Preliminary Information communication provides information to the technician about two rings and a coil of safety wire included in the loose items bag. These are the front brake rotor cooling rings. Read More »
This technical bulletin provides a procedure to validate if the parking pawl actuator is not working as intended, causing the parking pawl to engage while driving. Read More »
This preliminary informational bulletin provides diagnosis and repair information to correct a customer concern of alleged no park or vehicle rolls in park or park will not hold. Read More »
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D Read More »
This service bulletin provides policy information on warranty administration guidelines for multiple repairs with independent causes (GM Canada Dealers Only). Read More »
This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement. Read More »
This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy. Read More »
This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage. Read More »
This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement. Read More »
Special Coverage. Certain vehicles may have a condition where the vehicle may overheat and enter a reduced power mode when driven on a track at sustained high speeds in high ambient temperatures. Read More »
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations. Read More »
This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record ... Read More »
This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller rockers to inspect them. Read More »
This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the information found in the service manual. Read More »
This informational bulletin explains the normal noises an engine may make when the ambient temperature outside is cold or the vehicle has sat for a few hours. Read More »
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D Read More »
This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels ... Read More »
This informational bulletin explains to the tech on how to order a new fuel injector by matching the part number on the part and ordering it from the EPC. Read More »
This technical bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated. Read More »
This technical bulletin provides information for new transmission oil to use and a procedure for exchanging the old fluid and adding the new fluid to correct a shake/shudder during light throttle acceleration condition. Read More »
This technical bulletin provides a service procedure to correct conditions of Manual Transmission Stalling, Clutch Chatter or Hard Shifting into 1st Gear/Reverse and Automatic Transmission Vibration on Launch or Engine Noise. Read More »
This technical bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated. Read More »
This informational bulletin explains Unscheduled Supplemental Services (including Flushing Services and Additives) and the Proper use of GM Simplified Maintenance Schedules. Read More »
This Bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement. Read More »
This diagnostic tip provides a procedure to aid in performing a diagnostic test to verify if the camshaft alignment pin has been sheared away to correct a crank/No Start condition. Read More »
This Preliminary Information communication provides information to the technician on the steps need to diagnose and repair vehicles that may have stalling shudder and/or hard shifting into 1st gear or reverse vibration on launch (with ... Read More »
This technical bulletin provides repair information to correct conditions of difficult to shift into gear, grinds when shifting, possible gear clash, intermittent gear pop out and/or mushy shifts. Read More »
This diagnostic tip provides a procedure to aid in performing a diagnostic test to verify if the camshaft alignment pin has been sheared away. Read More »
This Bulletin provides information for rebuilding fuel injectors in the event of an underhood fuel odor and/or extended cranking condition. Read More »
This technical bulletin provides a procedure to modify the right rear exhaust control valve actuator to correct a rattle noise heard from the rear of the vehicle. Read More »
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. Read More »
This informational bulletin provides information to the tech to replace only the prop shaft and not the complete driveline support assembly (DSA) if a rattle noise is confirmed to be coming from the prop shaft. Read More »
This Preliminary Information communication provides information to the technician to not remove the torque converter bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with ... Read More »
This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller rockers to inspect them. Read More »
This technical bulletin provides a procedure to correct a condition of a rattle noise heard from the front of the vehicle when the engine is running at slower speeds. Read More »
This informational bulletin explains the normal noises an engine may make when the ambient temperature outside is cold or the vehicle has sat for a few hours. Read More »
This Preliminary information communicates to the dealer an issue where the vehicle's engine may crank over unprompted and not start afterward. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P0106 and P0506. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P0106 and P0506. Read More »
This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. Read More »
This informational bulletin provides diagnostic/inspection information for the air box and air filter seal to correct a MIL and DTCs P0420 and P0430 setting. Read More »
This technical bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL on. Read More »
This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have extended or long crank time during cold ambient air temperatures. Read More »
This informational bulletin provides the information on what may occur if the charge air cooler is not filled and drained properly after a service or replacement has been completed. Read More »
This Bulletin provides guidelines for Dealers required to contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of ... Read More »
This informational bulletin provides a revision for 09-06-04-015B (Vehicles Sitting Outside on Dealer Lots for Extended Periods with Hard Start/No Start Condition) to add the 2015-2018 model years. Read More »
This informational bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2 9U.S. and Canada Read More »
This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller rockers to inspect them. Read More »
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. Read More »
This Preliminary Information communication provides information to the technician how to diagnose and repair a vehicle with an engine that runs with an intermittent crank no start with a Diagnostic Trouble Code P0011 or P00C6 current or ... Read More »
This Preliminary Information communication provides information to the technician on the step to diagnose and repair the vehicles that may have a shake or shudder during light throttle acceleration, between 30 and 65 miles per hour steady ... Read More »
This informational bulletin provides information to dealership personnel on automatic transmission shift and engine drivability concerns and/or MIL ON due to aftermarket oil bath air filter use. Read More »
This technical bulletin provides repair information for repairing the IP to body harness connector to correct a customer concern for intermittent Malfunction Indicator Lamp (MIL) illuminated with Reduced Engine Power displayed and DTC ... Read More »
This Preliminary Information communication provides information to the technician on the steps need to diagnose and repair vehicles that may have stalling shudder and/or hard shifting into 1st gear or reverse vibration on launch (with ... Read More »
This warranty administration bulletin provides dealership personnel with policy and procedure requirements for essential tools that include consumable parts (U.S. Only). Read More »
This bulletin provides information on replacing the prop shaft hub clamp (AT) or the input shaft frt bearing (MT) whenever the driveline support assembly has been removed for repair. Read More »
This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or ... Read More »
This informational bulletin provides warranty policy information on revised wiring repair labor operations and required additional information. Read More »
This informational bulletin provides warranty policy information on revised wiring repair labor operations and required additional information. Read More »
This informational bulletin advises the possible issues that may occur using a scotch brite pad or highly abrasive disk on engine surfaces. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have extended or long crank time during cold ambient air temperatures. Read More »
This Preliminary Information communication advises the technician on the steps to diagnose the concern and the steps to repair the concern. Customer hears a rattle or ticking noise that is louder inside the vehicle than outside. Read More »
This technical bulletin provides a procedure to install a anti rattle spring on the actuator arm for the turbo and to correct the customers concern of a rattle noise heard from front of the engine. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction Indicator Lamp on or engine misfire, rough idle, extended crank, or crank no start in some cases. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a rattle or flutter noise from the supercharger tensioner and belt. Read More »
This Preliminary Information communication provides information to the technician about engine block that have a possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ABOUT THE CALCULATION AND OPERATION OF THE ENGINE OIL LIFE MONITOR. THE MONITOR CALCULATES THE PERCENT OF OIL LIFE REMAINING, BASED ON 3 PATHWAYS. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE A SERVICE ENGINE SOON MALFUNCTION INDICATOR LAMP ON. TECHNICIAN MAY FIND DIAGNOSTIC TROUBLE CODES P0106 AND P0506. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE A SERVICE ENGINE SOON MALFUNCTION INDICATOR LAMP ON AND DIAGNOSTIC TROUBLE CODE P0300 - P0308 MAY SET. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE VEHICLES THAT MAY HAVE A SHAKE OR SHUDDER DURING LIGHT THROTTLE ACCELERATION, BETWEEN 30 AND 65 MPH STEADY STATE ... Read More »
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION TO GM DEALERS ON THE CORRECT CLEANING METHODS WHEN CLEANING ENGINE GASKET SEALING SURFACES. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON HOW TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE RATTLE OR TICKING NOISE THAT IS LOUDER INSIDE THE VEHICLE THAN OUTSIDE. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON HOW TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE DIAGNOSTIC TROUBLE CODE P06DD OR NO OR LOW OIL PRESSURE. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THE SOME VEHICLES MAY HAVE SURGE MISFIRE FEELING SENSATION DURING HIGHWAY STEADY STATE DRIVING IN MANUAL MODE OR AUTOMATIC, TYPICALLY IN 6TH, 7TH, 8TH GEAR ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEP TO DIAGNOSE AND REPAIR THE VEHICLES THAT MAY HAVE A SHAKE OR SHUDDER DURING LIGHT THROTTLE ACCELERATION, BETWEEN 30 AND 65 MPH STEADY STATE ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THE SOME VEHICLES MAY HAVE SURGE MISFIRE FEELING SENSATION DURING HIGHWAY STEADY STATE DRIVING IN MANUAL MODE OR AUTOMATIC, TYPICALLY IN 6TH, 7TH, 8TH GEAR ... Read More »
This informational bulletin provides information on identifying non-GM (aftermarket) engine calibrations for gasoline engines using Tech 2 or GDS 2. Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPLACE THE VALVE LIFTER OIL MANIFOLD AND AFFECTED BANK OF AFM LIFTERS TO CORRECT A CUSTOMER CONCERN ON A MALFUNCTION INDICATOR LAMP (MIL) ON AND/OR AN ENGINE MISFIRE/TICK NOISE WITH DTC ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF BLACK SMOKE WHEN STARTING THE VEHICLE AFTER SITTING. Read More »
This informational bulletin provides information on Identifying Non-GM (Aftermarket) Engine Calibrations for Gasoline Engines Using Tech 2? or GDS 2 (U.S. and Canada) Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN HOW TO DIAGNOSE AND REPAIR A VEHICLE WITH AN ENGINE THAT RUNS WITH AN INTERMITTENT CRANK NO START WITH A DIAGNOSTIC TROUBLE CODE P0011 OR P00C6 CURRENT OR ... Read More »
This informational bulletin provides information on close coupled converters and there affect on newly installed engines or engines during there break in period. Read More »
This technical bulletin provides repair information to correct a customer concern of engine misfire/tick noise, Malfunction Indicator Lamp (MIL) On, DTC P0300 set. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have extended or long crank time during cold ambient air temperatures. Read More »
This Preliminary Information communication provides information to the technician on the steps need to diagnose and repair vehicles that may have stalling shudder and/or hard shifting into 1st gear or reverse vibration on launch (with ... Read More »
This Preliminary Information communication provides information to the technician vehicles that have a rattle noise heard at the engine bell housing. Technician should swap out front flexplate before starting a major service procedure. Read More »
This Preliminary Information communication advises the technician before replacing the crankshaft to review the following. Dealer should complete the Service Information diagnostics and the Cost Comparison Worksheet for Assembly Repair vs. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have extended or long crank time during cold ambient air temperatures. Read More »
GMC/CHEVROLET/CADILLAC: INFORMATION PROVIDED ON SOME VEHICLES AND SUV, FOR REPLACEMENT OF CRANKSHAFT, FOR ENGINE REPAIR AND OIL TANK AND LINES WOULD BE REPLACED ON DRY SUMP ENGINES WHEN REPAIRING AND/OR REPLACING. Read More »
This Preliminary Information communication provides information to the technician about the ?Chevrolet Complete Care Program (U.S.)? oil changes. Read More »
This Preliminary Information communication advises the technician that the 2015 Chevrolet Corvette 6.2L V8 Engine assembly (VIN 6 -RPO LT4) exchange has ended. Dealers can now order the 6. Read More »
This preliminary informational bulletin provides repair information for a customer concern of a whistling or chirp noise coming from the front of the engine. Read More »
This Preliminary Information communication provides information to the technician how to diagnose and repair a vehicle with an engine that runs with an intermittent crank no start with a Diagnostic Trouble Code P0011 or P00C6 current or ... Read More »
This Preliminary Information communication provides information to the technician about vehicles with a buzz noise heard from the engine area at the first start. Be advised this is a normal operation of the vehicle. Read More »
This informational bulletin provides information that may be useful in diagnosing/testing batteries that have set for a long period of time and/or set in cold weather climates to correct a customer concern of symptoms that include, but ... Read More »
This Preliminary Information communication advises the technician that the 6.2L V8 Engine assembly (Vehicle Identification Number 6 ?Regular Production Option Code LT4) will be placed on restriction through the General Motors Technical ... Read More »
CHEVROLET: AN ENGINE EXCHANGE PROGRAM (6.2L V8 ENGINE ASSEMBLY) PART NUMBER 12661805, HAS BEEN LAUNCHED, FOR CERTAIN VEHICLES, FOR 6 MONTHS ONLY AND OTHER PRELIMINARY INFORMATION WITH BE PUBLISHED. MODEL 2015 CORVETTE. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction Indicator Lamp on or engine misfire, rough idle, extended crank, or crank no start in some cases. Read More »
CHEVROLET: OIL WILL BE FORCED OUT OF PCV INTO INDUCTION SYSTEM IF NOT PROPERLY CHECKED FOR OVERFILLED AND ALSO AGGRESSIVE DRIVING, WITH LOW MILES, CAN PUSH OIL THROUGH PCV SYSTEM. MODEL 2014-15 CORVETTE. Read More »
This Preliminary Information communication advises the technician that the engine part number 19317708 and 19316786 restriction through General Motors Product Quality Center has ended. Read More »
This Preliminary Information communication advises the technician that the Engine Control Module part number 12656993 and 12662034 placed on restriction through the General Motors Product Quality Center. Read More »
This informational bulletin provides a process to the service agents that are not required to contact PQC, to determine when to replace a assembly as opposed to repairing and if an engine or transmission is being returned, that it has all ... Read More »
This Preliminary Information communication provides information to the technician how to diagnose and repair a vehicles with an engine that runs with an intermittent crank no start with a Diagnostic Trouble Code P0011 or P00C6 current or ... Read More »
This Preliminary Information communication provides information to the technician how to diagnose and repair vehicles with an engine that runs with an intermittent crank no start with a Diagnostic Trouble Code P0011 or P00C6 current or ... Read More »
This informational bulletin provides a process to the service agents that are not required to contact PQC, to determine when to replace a assembly as opposed to repairing and if an engine or transmission is being returned, that it has all ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have extended or long crank time during cold ambient air temperatures. Read More »
This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. Read More »
This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels ... Read More »
This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system. Read More »
This service bulletin provides repair information to correct a customer concern of a chirp, squeak noise heard coming from the rear of vehicle. Read More »
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations. Read More »
This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, ... Read More »
This service bulletin provides information on Corvette and Camaro Exhaust Tone During Wide Open Throttle while in Sport or Track Modes and that this is considered a normal characteristic. Read More »
This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns. Read More »
This service bulletin explains the difference in oil filters for gas engines with new oil pump control systems and the possibilities of what may happen using the incorrect filter. Read More »
The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay. Read More »
This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement. Read More »
This service bulletin informs the technician that if the vehicle has an engine misfire with DTC P0300 set, and superchargera??s cooling system has been previously repaired, it must be properly evacuated and filled. Read More »
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations. Read More »
This informational bulletin advised the technician that the engine and related parts will be debited if found that the tech didn't properly prepare the engine block from dirt and debris in bolt holes or if found that the block was damaged ... Read More »
This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. Read More »
This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder. Read More »
This service bulletin provides information to dealership personnel on automatic transmission shift and engine driveability concerns and/or MIL ON due to aftermarket oil bath air filter use. Read More »
This service bulletin provides repair information to correct a customer concern of a chirp, squeak noise heard coming from the rear of vehicle. Read More »
This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers. Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer. Read More »
This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts. Read More »
This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage. Read More »
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations. Read More »
This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement. Read More »
This service bulletin provides repair information to correct a customer concern of a chirp, squeak noise heard coming from the rear of vehicle. Read More »
This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated. Read More »
This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated. Read More »
This service bulletin provides information on Corvette and Camaro Exhaust Tone During Wide Open Throttle while in Sport or Track Modes and that this is considered a normal characteristic. Read More »
This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated. Read More »
This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement. Read More »
This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set. Read More »
This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, ... Read More »
This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global ... Read More »
This bulletin advises the technician to Inspect the position of the head gasket locating tabs to determine if the head gasket(s) has been possibly installed backwards to correct a concern of an Engine Thermostat Tick Noise and/or Running ... Read More »
This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system. Read More »
This bulletin advises the technician to Inspect the position of the head gasket locating tabs to determine if the head gasket(s) has been possibly installed backwards to correct a concern of an Engine Thermostat Tick Noise and/or Running ... Read More »
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL. Read More »
This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. Read More »
This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts. Read More »
This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage. Read More »
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations. Read More »
This technical bulletin provides information on a possible bolt and guide pin that may be missing from the control valve which will need to be installed to correct the repair. Read More »
This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set. Read More »
This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy. Read More »
This service bulletin provides information on Corvette and Camaro Exhaust Tone During Wide Open Throttle while in Sport or Track Modes and that this is considered a normal characteristic. Read More »
This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder. Read More »
This service bulletin informs the technician that if the vehicle has an engine misfire with DTC P0300 set, and superchargera??s cooling system has been previously repaired, it must be properly evacuated and filled. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have run hot and or has a tick noise. Technician should inspect the head gaskets to ensure are not installed backwards. Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer. Read More »
This informational bulletin explains the normal noises an engine may make when the ambient temperature outside is cold or the vehicle has sat for a few hours. Read More »
This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder. Read More »
This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system. Read More »
This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated. Read More »
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D Read More »
This service bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area. Read More »
This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have run hot and or has a tick noise. Technician should inspect the head gaskets to ensure are not installed backwards. Read More »
This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global ... Read More »
This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated. Read More »
This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated. Read More »
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D Read More »
This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the information found in the service manual. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Read More »
This informational bulletin explains the normal noises an engine may make when the ambient temperature outside is cold or the vehicle has sat for a few hours. Read More »
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. Read More »
This Preliminary Information communication provides information to the technician how to diagnose and repair a vehicle with an engine that runs with an intermittent crank no start with a Diagnostic Trouble Code P0011 or P00C6 current or ... Read More »
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have Diagnostic Trouble Code P06DD or no or low oil pressure. Read More »
This diagnostic tip provides information to the tech to aid in performing a diagnostic test to verify if the camshaft alignment pin has been sheared away. Read More »
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have Diagnostic Trouble Code P06DD or no or low oil pressure. Read More »
This informational bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have low oil pressure, no oil pressure, and/or engine noise. Technician will need to replace the oil pump, flush the oil cooler lines. Read More »
This technical bulletin provides a procedure to reposition the coolant surge hose clamp away from the hood blanket to avoid hood closing interference. Read More »
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. Read More »
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have run hot and or has a tick noise. Technician should inspect the head gaskets to ensure are not installed backwards. Read More »
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Read More »
This Preliminary information communicates to the dealer an issue where the vehicle's engine may crank over unprompted and not start afterward. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an engine oil odor with no oil leaks found. Technician will need to inspect for an external oil leak. Read More »
This PI was superseded to update model years and add information concerning idle surge, reduced engine power mode, and/or DTCs P0068, P0121, P1516, P2101, P2119, and/or P2176 that may be experienced on high mileage vehicles. Read More »
This technical bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL on. Read More »
This informational bulletin advises the possible issues that may occur using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have run hot and or has a tick noise. Technician should inspect the head gaskets to ensure are not installed backwards. Read More »
This informational bulletin provides information on informing the customer about gurgling and/or running water type noise in which is a normal condition and no repair is necessary. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a coolant loss and/or coolant odor after driving the vehicle. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE LOW OIL PRESSURE MESSAGE. TECHNICIAN MAY ALSO FIND A DIAGNOSTIC TROUBLE CODE P0521 IN THE ENGINE CONTROL MODULE. Read More »
THIS INFORMATIONAL BULLETIN EXPLAINS A POSSIBLE NORMAL WHINING NOISE FROM THE BALANCE SHAFT CHAIN IF THE VEHICLE HAS LESS THAN 10,000 MILES ON IT. Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPLACE THE VALVE LIFTER OIL MANIFOLD AND THE LIFTERS TO CORRECT THE CUSTOMERS CONCERN OF ENGINE MISFIRE, TICK NOISE AND MIL ON. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a coolant loss and/or coolant odor after driving the vehicle. Read More »
This Preliminary Information communication provides information to the technician about vehicles with misfires or roughness on cold start up. Technician may find a Diagnostic Trouble Code P0300 stored. Read More »
This informational bulletin provides information to technicians regarding intake manifold inspection/replacement after severe internal engine damage. Read More »
This technical bulletin provides repair information to correct a customer concern of engine misfire/tick noise, Malfunction Indicator Lamp (MIL) On, DTC P0300 set. Read More »
This technical bulletin provides repair information for repairing the IP to body harness connector to correct a customer concern for intermittent Malfunction Indicator Lamp (MIL) illuminated with Reduced Engine Power displayed and DTC ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician may find a Diagnostic Trouble Code P0011. Read More »
This informational bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered seepage. Read More »
This informational bulletin provides information to technicians regarding intake manifold inspection/replacement after severe internal engine damage. Read More »
This Preliminary Information communication advises the technician about the calculation and operation of the engine oil life monitor. The monitor calculates the percent of oil life remaining, based on 3 pathways. Read More »
This informational bulletin supplies infomation for identifying non-GM (Aftermarket) engine calibrations for gasoline engines using Tech 2? or GDS 2 (U.S. and Canada). Read More »
This Preliminary Information communication provides information to the technician vehicles that have a rattle noise heard at the engine bell housing. Technician should swap out front flexplate before starting a major service procedure. Read More »
This Preliminary Information communication advises the technician that If it is determined the crankshaft needs to be replaced complete the Service Information diagnostics to determine if the crankshaft requires replacement. Read More »
This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller rockers to inspect them. Read More »
This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or ... Read More »
This informational bulletin provides information to the technician on what parts of an engine or transmission will require the PQC to be notified. Read More »
This informational bulletin provides information to the technician on what parts of an engine or transmission will require the PQC to be notified. Read More »
This informational bulletin supplies infomation for identifying non-GM (Aftermarket) engine calibrations for gasoline engines using Tech 2? or GDS 2 (U.S. and Canada). Read More »
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS
This Preliminary Information communication provides information to the technician about vehicles that have a rattle or flutter noise from the supercharger tensioner and belt. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a rattle or flutter noise from the supercharger tensioner and belt. Read More »
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
This preliminary informational bulletin provides information on Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center. Read More »
THIS INFORMATIONAL BULLETIN EXPLAINS THE USE OF DIESEL FUEL ADDITIVES IN AN ENGINE, ARE NOT REQUIRED UNLESS THE CUSTOMER DESIRES ADDITIVES TO PREVENT FUEL CONCERNS DEPENDING ON FUEL OR TEMPERATURE RELATED CONDITIONS. Read More »
ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations. Read More »
ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PRESSURE/TEMPERATURE SENSOR
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. Read More »
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D Read More »
Malfunction Indicator Lamp (MIL) Illuminated, Intermittently Unable to Shift into Reverse, DTC P0502 Set Condition/Concern Some customers may comment on a malfunction indicator lamp (MIL) illuminated. Read More »
This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder. Read More »
This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the information found in the service manual. Read More »
Special Coverage. Certain vehicles may have a condition where the vehicle may overheat and enter a reduced power mode when driven on a track at sustained high speeds in high ambient temperatures. Read More »
This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area. Read More »
This service bulletin provides information on Corvette and Camaro Exhaust Tone During Wide Open Throttle while in Sport or Track Modes and that this is considered a normal characteristic. Read More »
This service bulletin provides information on Corvette and Camaro Exhaust Tone During Wide Open Throttle while in Sport or Track Modes and that this is considered a normal characteristic. Read More »
This service bulletin provides information on Corvette and Camaro Exhaust Tone During Wide Open Throttle while in Sport or Track Modes and that this is considered a normal characteristic. Read More »
This informational bulletin advises of a new fuel injection kit used for decarbonizing the intake valves, and explains how toptier fuels should be used to reduce carbon build up. Read More »
This technical bulletin provides a procedure to modify the right rear exhaust control valve actuator to correct a rattle noise heard from the rear of the vehicle. Read More »
This Preliminary Information communication provides information to the technician about customers that would like to install Regular Production Option Code NPP (Dual Mode Performance Exhaust System) to a Stingray that was produced without ... Read More »
This informational bulletin provides information on Corvette and Camaro ZL1 Exhaust Tone During Wide Open Throttle while in Sport or Track Modes and that this is considered a normal characteristic. Read More »
This Preliminary Information communication provides information to the technician about customers that would like to install Regular Production Option Code NPP (Performance Exhaust System) to a Stingray that was produced without the option. Read More »
This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy. Read More »
This informational bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states. Read More »
This preliminary information document communicates a tip on the way to diagnose possible induction or exhaust air leaks using the evaporative emission cart smoke machine and ultrasonic leak detector tools. Read More »
This technical bulletin provides a procedure to lubricate the exhaust valves to correct a customer on hearing a squeak or chirp noise coming from the rear of the vehicle caused by to the opening/closing of the exhaust values during normal ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Read More »
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)
This Preliminary Information communication provides information to the technician on the steps need to diagnose and repair vehicles that may have stalling shudder and/or hard shifting into 1st gear or reverse vibration on launch (with ... Read More »
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR
This informational bulletin explains how the catalytic converters may need an inspection, cleaning or replacement if debris have entered the exhaust system. Read More »
This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. Read More »
This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. Read More »
This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. Read More »
This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. Read More »
This technical bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL on. Read More »
This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation. Read More »
This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy. Read More »
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have rattle or ticking noise that is louder inside the vehicle than outside. Read More »
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have rattle or ticking noise that is louder inside the vehicle than outside. Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer. Read More »
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL. Read More »
This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy. Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer. Read More »
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL. Read More »
This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or ... Read More »
This Preliminary information communicates the use of Winter grade fuel during the warm months of 2020 and the potential rivability issues that it can cause. Read More »
This Bulletin provides information for rebuilding fuel injectors in the event of an underhood fuel odor and/or extended cranking condition. Read More »
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL. Read More »
This Preliminary information communicates to the dealer an issue where the vehicle's engine may crank over unprompted and not start afterward. Read More »
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL. Read More »
This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation. Read More »
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have rattle or ticking noise that is louder inside the vehicle than outside. Read More »
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a no crank concern. Read More »
This informational bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles. Read More »
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »
This Preliminary information communicatesIn ambient temperatures 100F (37.7 C)degrees or higher, DTCs P2635 and/or P018B may set.The vehicle may also exhibit a hesitation or stalling condition. Read More »
This Preliminary Information communication advises the technician when Service Information diagnostics indicates a fuel injector may need to be removed for a repair or replaced the injector will need a new seal. Read More »
This Preliminary Information communication provides information to the technician about engine block that have a possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder ... Read More »
16009 - Special Coverage. Some vehicles may have a condition where a fuel odor is detected, fuel droplets appear below the left-hand fuel tank (driver side) with fuel gauge level above 1/2, or a malfunction indicator lamp illuminates due ... Read More »
This informational Bulletin provides Do's and Don'ts for maximizing gasoline engine fuel economy, other various tips and a list of websites for additional information. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Read More »
This Preliminary Information communication provides information to the technician to help determine if the vehicle is equipped with factory or aftermarket Compressed Natural Gas, Liquefied Petroleum Gas, or Bi-Fuel Systems. Read More »
This Preliminary Information communication advises the technician when Service Information diagnostics indicates a fuel injector may need to be removed for a repair or replaced the injector will need a new seal. Read More »
This Preliminary Information communication provides information to the technician how to diagnose and repair vehicles with an engine that runs with an intermittent crank no start with a Diagnostic Trouble Code P0011 or P00C6 current or ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Read More »
This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set. Read More »
This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation. Read More »
This Preliminary information communicatesIn ambient temperatures 100F (37.7 C)degrees or higher, DTCs P2635 and/or P018B may set.The vehicle may also exhibit a hesitation or stalling condition. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON HOW TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE RATTLE OR TICKING NOISE THAT IS LOUDER INSIDE THE VEHICLE THAN OUTSIDE. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF A RATTLE OR TICKING NOISE THAT IS LOUDER INSIDE THE VEHICLE THAN OUTSIDE. Read More »
FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have rattle or ticking noise that is louder inside the vehicle than outside. Read More »
This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON HOW TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE RATTLE OR TICKING NOISE THAT IS LOUDER INSIDE THE VEHICLE THAN OUTSIDE. Read More »
This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels ... Read More »
This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have extended or long crank time during cold ambient air temperatures. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF BLACK SMOKE WHEN STARTING THE VEHICLE AFTER SITTING. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have extended or long crank time during cold ambient air temperatures. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN HOW TO DIAGNOSE AND REPAIR A VEHICLE WITH AN ENGINE THAT RUNS WITH AN INTERMITTENT CRANK NO START WITH A DIAGNOSTIC TROUBLE CODE P0011 OR P00C6 CURRENT OR ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have Service Engine Soon Malfunction Indicator Lamp. Read More »
This informational bulletin explains to the tech on how to order a new fuel injector by matching the part number on the part and ordering it from the EPC. Read More »
This Bulletin provides information for rebuilding fuel injectors in the event of an underhood fuel odor and/or extended cranking condition. Read More »
This informational bulletin advises of a new fuel injection kit used for decarbonizing the intake valves, and explains how toptier fuels should be used to reduce carbon build up. Read More »
This Preliminary Information communication advises the technician when Service Information diagnostics indicates a fuel injector may need to be removed for a repair or replaced the injector will need a new seal. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF A RATTLE OR TICKING NOISE THAT IS LOUDER INSIDE THE VEHICLE THAN OUTSIDE. Read More »
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL. Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer. Read More »
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL. Read More »
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL. Read More »
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL. Read More »
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL. Read More »
This informational bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles. Read More »
This bulletin provides repair information to correct a customer concern of fuel odor, fuel leaks from UH SIDI Pipes between High Pressure Pump and Fuel Rails Read More »
This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. Read More »
This informational bulletin provides dealership personnel with information on flexible fuel vehicles (FFVs) and the usage of E85 fuel in GM vehicles. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Read More »
This Preliminary information communicatesIn ambient temperatures 100F (37.7 C)degrees or higher, DTCs P2635 and/or P018B may set.The vehicle may also exhibit a hesitation or stalling condition. Read More »
This Preliminary Information communication advises the technician when Service Information diagnostics indicates a fuel injector may need to be removed for a repair or replaced the injector will need a new seal. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have extended or long crank time during cold ambient air temperatures. Read More »
This Preliminary information communicates to have the dealer contact TAC with the transmission TUN number prior to transmission installation. Read More »
This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, ... Read More »
This service bulletin advises the technician that the possible cause may not be from a faulty clutch piston or extension housing and to perform testing on transmission for other possible issues, but it still may be possible on high ... Read More »
This service bulletin provides service /diagnostic information to aid with a Transmission Harsh 1-2 Shift Upon First Start Up/Shift of the Day Under Light Throttle. Read More »
This bulletin advises the technician that the 6L50 (MYB), 6L80 (MYC) and 6L90 (MYD) Transmission Oil Filter and Seal Kit part number 24236933 is currently transitioning from a kit to the filter (24236517) and seal (24225347) being sold ... Read More »
This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns. Read More »
This service bulletin provides service /diagnostic information to aid with a Transmission Harsh 1-2 Shift Upon First Start Up/Shift of the Day Under Light Throttle. Read More »
This Preliminary Information communication advises the technician on diagnostic aids to help with the diagnosis and repair of 8 Speed Transmissions Read More »
The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay. Read More »
This service bulletin provides information to address a tire chatter noise during low speed tight turn conditions (i.e. parking lot, driveway, etc.) primarily during cooler ambient temperatures. Read More »
This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. Read More »
This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. Read More »
This service bulletin provides information to dealership personnel on automatic transmission shift and engine driveability concerns and/or MIL ON due to aftermarket oil bath air filter use. Read More »
This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Read More »
This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers. Read More »
This service bulletin provides information for after installation of a replacement upper valve body, the transmission may have no Reverse and no 2nd gear. Read More »
This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, ... Read More »
This service bulletin advises the technician that the possible cause may not be from a faulty clutch piston or extension housing and to perform testing on transmission for possible other issues, but it still may be possible on high mile ... Read More »
This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global ... Read More »
This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. Read More »
This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. Read More »
This informational bulletin advises the technician of possibly installing the incorrect 1-2-7-8-R clutch fluid passage seal and which seal should be used with measurements of the seal. Read More »
This technical bulletin provides information on a possible bolt and guide pin that may be missing from the control valve which will need to be installed to correct the repair. Read More »
This Preliminary Information communication provides information to the technician to not remove the torque converter bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with ... Read More »
This diagnostic tip advises the tech not to separate the flexplate from the torque convertor or damage my occur if the engine is started while diagnosing for noise from the engine or transmission. Read More »
This service bulletin provides a procedure to correct a condition of a rattle noise heard from the front of the vehicle when the engine is running at slower speeds. Read More »
This informational bulletin provides information to address a chatter noise during low speed tight turn conditions (i.e. parking lot, driveway, etc.) primarily during cooler ambient temperatures. Read More »
This service bulletin provides service /diagnostic information to aid with a Transmission Harsh 1-2 Shift Upon First Start Up/Shift of the Day Under Light Throttle. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Read More »
This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. Read More »
This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, ... Read More »
This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global ... Read More »
Special Coverage. Certain vehicles may have a condition where the vehicle may overheat and enter a reduced power mode when driven on a track at sustained high speeds in high ambient temperatures. Read More »
This technical bulletin provides a service procedure to correct conditions of Manual Transmission Stalling, Clutch Chatter or Hard Shifting into 1st Gear/Reverse and Automatic Transmission Vibration on Launch or Engine Noise. Read More »
This technical bulletin provides a service procedure to correct conditions of Manual Transmission Stalling, Clutch Chatter or Hard Shifting into 1st Gear/Reverse and Automatic Transmission Vibration on Launch or Engine Noise. Read More »
Special Coverage. Certain vehicles may have a condition where the vehicle may overheat and enter a reduced power mode when driven on a track at sustained high speeds in high ambient temperatures. Read More »
Special Coverage. Certain vehicles may have a condition where the vehicle may overheat and enter a reduced power mode when driven on a track at sustained high speeds in high ambient temperatures. Read More »
Special Coverage. Certain vehicles may have a condition where the vehicle may overheat and enter a reduced power mode when driven on a track at sustained high speeds in high ambient temperatures. Read More »
This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares. Read More »
This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares. Read More »
This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares. Read More »
This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record ... Read More »
This technical bulletin provides a procedure to replace the left side differential carrier cover and seal to correct a condition of Warble Noise from the Rear of the Vehicle. Read More »
This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global ... Read More »
This technical bulletin provides a procedure to validate if the parking pawl actuator is not working as intended, causing the parking pawl to engage while driving. Read More »
This technical bulletin provides information for new transmission oil to use and a procedure for exchanging the old fluid and adding the new fluid to correct a shake/shudder during light throttle acceleration condition. Read More »
This technical bulletin provides a service procedure to correct conditions of Manual Transmission Stalling, Clutch Chatter or Hard Shifting into 1st Gear/Reverse and Automatic Transmission Vibration on Launch or Engine Noise. Read More »
This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Read More »
This technical bulletin provides a service procedure to correct conditions of Manual Transmission Stalling, Clutch Chatter or Hard Shifting into 1st Gear/Reverse and Automatic Transmission Vibration on Launch or Engine Noise. Read More »
This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Read More »
This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. Read More »
This informational bulletin provides information on Driveline Support (Torque Tube) / Propeller Shaft Input to Front Hub Bearing Alignment. Read More »
This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record ... Read More »
This informational bulletin explains possible normal condition of a flare from 1st to 2nd, even if the trans had been repaired for the flare and its still noticed. Read More »
This technical bulletin provides information for new transmission oil to use and a procedure for exchanging the old fluid and adding the new fluid to correct a shake/shudder during light throttle acceleration condition. Read More »
This technical bulletin provides information for new transmission oil to use, a procedure for exchanging the old fluid and adding the new fluid to a service transmission. Read More »
This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record ... Read More »
This technical bulletin provides information for new transmission oil to use and a procedure for exchanging the old fluid and adding the new fluid to correct a shake/shudder during light throttle acceleration condition. Read More »
This technical bulletin provides a procedure to correct a condition of a rattle noise heard from the front of the vehicle when the engine is running at slower speeds. Read More »
This technical bulletin provides information for new transmission oil to use and a procedure for exchanging the old fluid and adding the new fluid to correct a shake/shudder during light throttle acceleration condition. Read More »
This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record ... Read More »
This Preliminary Information communication provides information to the technician to refer to bulletin 16-NA-175 to aid in addressing torque converter clutch shudder concerns. Read More »
This technical bulletin provides a procedure to flush and drain fluids for the transmission to eliminate a shake and/or shudder during a light throttle acceleration between 40 and 128 KM/H (25 and 80 MPH) at a steady state. Read More »
This informational bulletin provides information on Driveline Support (Torque Tube) / Propeller Shaft Input to Front Hub Bearing Alignment. Read More »
This informational bulletin provides information on Some vehicles may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. Read More »
This Preliminary Information communication provides information to the technician on the step to diagnose and repair the vehicles that may have a shake or shudder during light throttle acceleration, between 30 and 65 miles per hour steady ... Read More »
This informational bulletin provides information to dealership personnel on automatic transmission shift and engine drivability concerns and/or MIL ON due to aftermarket oil bath air filter use. Read More »
This Preliminary Information communication provides information to the technician on the steps need to diagnose and repair vehicles that may have stalling shudder and/or hard shifting into 1st gear or reverse vibration on launch (with ... Read More »
This technical bulletin provides a procedure to flush and drain fluids for the transmission to eliminate a shake and/or shudder during a light throttle acceleration between 40 and 128 KM/H (25 and 80 MPH) at a steady state. Read More »
This technical bulletin provides a procedure to flush and drain fluids for the transmission to eliminate a shake and/or shudder during a light throttle acceleration between 40 and 128 KM/H (25 and 80 MPH) at a steady state. Read More »
This engineering informational bulletin ends the need for information from the field on vehicles with the condition of Hard to Shift or Pops Out of Selected Gear Concerns That Cannot Be Duplicated. Read More »
This Preliminary Information communication provides information to the technician on the step to diagnose and repair the vehicles that may have a shake or shudder during light throttle acceleration, between 30 and 65 miles per hour steady ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have harsh concerns. Technician are advised to use GDS2 software to confirm which shift is causing the concern. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have harsh shifts concerns. Technicians will use Global Diagnostic System 2 software to confirm which shift is causing the concern. Read More »
This Bulletin provides guidelines for Dealers to determine whether or not they need to contact the PQC for an engine, transmission or transfer case assembly replacement and information explaining the PQC process, Global Warranty ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATES THAT THE PRODUCT QUALITY CENTER TRANSMISSION EXCHANGE 8L90 8 SPEED AUTOMATIC TRANSMISSION HAS ENDED. Read More »
This informational bulletin provides information on transmission adaptive functions and correcting low mileage harsh shifts by completing a transmission service fast learn Read More »
This preliminary informational bulletin provides a procedure to adjust the transmission control for conditions of Difficult to Shift into Gear, Intermittent Gear Pop Out and/or Mushy Shifts Read More »
This technical bulletin provides a procedure on replacing the stator shaft support for vehicles with the condition of a delayed engagement after sitting with the engine off. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have the base power seat, Memory Recall, and Easy Exit Recall functions may seem erratic or seem to operate intermittently. Read More »
This Preliminary Information communication advises the technician that the 8L90 8 Speed Automatic Transmission is on exchange through General Motors Product Quality Center. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a transmission fluid leaking from the transmission vent may be noted on new cars coming off of the transport truck. Read More »
This Preliminary Information communication advises the technician that the part restriction on the 8L45/8L90 8 speed and the LCT1000 6 Speed Allison automatic transmission has ended. Read More »
This informational bulletin provides information to dealership personnel on proper engine and automatic transmission/transaxle identification. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a repeat harsh shift, slip or flare concern after performing the service fast learn and the drive learn procedures were performed. Read More »
This Preliminary Information communication provides information to the technician on the steps need to diagnose and repair vehicles that may have stalling shudder and/or hard shifting into 1st gear or reverse vibration on launch (with ... Read More »
This Preliminary Information communication advises the technician about the 8L90 8 Speed Automatic Transmission is on restriction through General Motors Product Quality Center. Read More »
This Preliminary Information communication advises the technician that the LCT1000 6 Speed Allison, 8L90 and 8L45 8 speed automatic transmission as well as the transmission control module is on restriction through General Motors Product ... Read More »
This Preliminary Information communication provides information to the technician of an engine power reduced message on the driver information center after performing the Canada Onstar? 4G upgrade. Read More »
This informational bulletin provides technicians with information on transmission adaptive functions and correcting low mileage harsh shifts. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a transmission fluid leaking from the transmission vent may be noted on new cars coming off of the transport truck. Read More »
This Preliminary Information communication provides information to the technician the steps to diagnose and repair vehicles with a Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Code P16F3. Read More »
This Preliminary Information communication advises the technician that the 8L90 8 Speed Automatic Transmission is on exchange through General Motors Product Quality Center. Read More »
This preliminary informational bulletin provides a shifter assembly neutral position re-alignment procedure to correct a customer concern of difficult to shift into gear, intermittent gear pop out and/or mushy shifts (no grind). Read More »
This engineering information bulletin is requesting information from dealers on a customer concern of intermittent difficulty shifting, transmission leak and/or possible DTCs set. Read More »
This informational bulletin provides information on transmission adaptive functions when correcting a customer concern that shift feels to be too firm (harsh) or may slip or flare. Read More »
This informational bulletin was created for the Manual Transmission Operating Characteristics. The different noises caused by driver habit, weather conditions , and normal manual transmission noises. Read More »
This Preliminary Information communication advises the technician that the 8L90 8 Speed Automatic Transmission is on exchange through General Motors Product Quality Center. Read More »
This informational bulletin provides information on driving characteristics of rear wheel drive vehicles and winter tires, tire responses to road conditions and application tips. Read More »
This information bulletin provides a procedure for the technicians to perform a transmission re-learn to correct a customer concern of low milage harsh shifting. Read More »
This Preliminary Information communication advises the technician that the 8L90 8 Speed Automatic Transmission is on exchange through General Motors Product Quality Center. Read More »
This Preliminary Information communication advises the technician that the 8L90 8 Speed Automatic Transmission is on restriction through General Motors Product Quality Center. Read More »
Service Update for Inventory Vehicles Only Drive Audit for Transmission Noise and Loss of Reverse Vehicle Limited to 3rd and 4th Forward Gear Read More »
This Preliminary Information communication advises the technician that the 8L90 8 Speed Automatic Transmission is on restriction through General Motors Product Quality Center. Read More »
This informational bulletin provides a process to the service agents that are not required to contact PQC, to determine when to replace a assembly as opposed to repairing and if an engine or transmission is being returned, that it has all ... Read More »
This informational bulletin provides information to the technician on what parts of an engine or transmission will require the PQC to be notified. Read More »
This informational bulletin provides a process to the service agents that are not required to contact PQC, to determine when to replace a assembly as opposed to repairing and if an engine or transmission is being returned, that it has all ... Read More »
GENERAL MOTORS: PARTS FOR MOST VEHICLES, CLUTCH, MASTER CYLINDER ASSEMBLY ARE, REQUIRED AND REQUESTED, TO BE RETURNED AND NEED TO REORDER REPLACEMENT PARTS USING SAME PART NUMBERS. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS NEED TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE STALLING SHUDDER AND/OR HARD SHIFTING INTO 1ST GEAR OR REVERSE VIBRATION ON LAUNCH (WITH ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN REAR WHEEL DRIVE MANUAL TRANSMISSIONS HAVE BEEN PLACED ON RESTRICTION. DEALER WILL NEED TO CONTACT GENERAL MOTORS PRODUCT QUALITY CENTER FOR FURTHER ASSISTANCE. Read More »
ome customers may comment on a malfunction indicator lamp (MIL) illuminated. They may also comment that they intermittently are unable to shift into Reverse. Read More »
Some customers may comment on vehicle reduced engine power with a Service Engine message displayed. Upon inspection, a technician may find DTC P2263 set. Read More »
Some customers may comment on a malfunction indicator lamp (MIL) illuminated. They may also comment that they intermittently are unable to shift into Reverse. Read More »
Malfunction Indicator Lamp (MIL) Illuminated, Intermittently Unable to Shift into Reverse, DTC P0502 Set Condition/Concern Some customers may comment on a malfunction indicator lamp (MIL) illuminated. Read More »
CHEVROLET: ON CERTAIN VEHICLES, MANUAL TRANSMISSION EXPERIENCE A HARD SHIFTING AND/OR SHUDDERING GOING INTO 1ST GEAR OR REVERSE AND THERE IS A CLUNKING NOISE OR VIBRATION, WITH AUTO TRANSMISSION, DURING TAKEOFF. MODEL 2014-15 CORVETTE. Read More »
This informational bulletin provides technicians with information to assist in identifying operating characteristics of manual transmissions that repair attempts will not change. Read More »
This informational bulletin provides technicians with information to assist in identifying operating characteristics of manual transmissions that repair attempts will not change. Read More »
This preliminary informational bulletin provides a shifter assembly neutral position re-alignment procedure to correct a customer concern of difficult to shift into gear, intermittent gear pop out and/or mushy shifts (no grind). Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS NEED TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE STALLING SHUDDER AND/OR HARD SHIFTING INTO 1ST GEAR OR REVERSE VIBRATION ON LAUNCH (WITH ... Read More »
CHEVROLET: OIL WILL BE FORCED OUT OF PCV INTO INDUCTION SYSTEM IF NOT PROPERLY CHECKED FOR OVERFILLED AND ALSO AGGRESSIVE DRIVING, WITH LOW MILES, CAN PUSH OIL THROUGH PCV SYSTEM. MODEL 2014-15 CORVETTE. Read More »
14628 - SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO PERFORM A DRIVE AUDIT ON ALL VEHICLES IN INVENTORY THAT ARE EQUIPPED WITH AN 8 SPEED AUTOMATIC TRANSMISSION (M5U). Read More »
CHEVROLET: THE TRIPLE CLUTCH HOUSING INTERNAL, IN TRANSMISSION, MAY DEVELOP A CRACK, LEADING TO LOSS OF REVERSE GEAR, NOISE, AND LIMITING USE, BY DRIVER, TO 3RD AND 4TH, FORWARD GEARS, IN A SMALL NUMBER OF 8 SPEED TRANSMISSIONS. Read More »
The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them. Read More »
This informational bulletin explains possible normal condition of a flare from 1st to 2nd, even if the trans had been repaired for the flare and its still noticed. Read More »
This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Read More »
This Preliminary Information communication provides information to the technician on the steps need to diagnose and repair vehicles that may have stalling shudder and/or hard shifting into 1st gear or reverse vibration on launch (with ... Read More »
This informational bulletin provides information on Some vehicles may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. Read More »
This Bulletin provides guidelines for Dealers required to contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of ... Read More »
This technical bulletin provides a procedure to flush and drain fluids for the transmission to eliminate a shake and/or shudder during a light throttle acceleration between 40 and 128 KM/H (25 and 80 MPH) at a steady state. Read More »
This technical bulletin provides a procedure to flush and drain fluids for the transmission to eliminate a shake and/or shudder during a light throttle acceleration between 40 and 128 KM/H (25 and 80 MPH) at a steady state. Read More »
This Preliminary Information communication provides information to the technician on the steps need to diagnose and repair vehicles that may have stalling shudder and/or hard shifting into 1st gear or reverse vibration on launch (with ... Read More »
This technical bulletin provides a procedure to flush and drain fluids for the transmission to eliminate a shake and/or shudder during a light throttle acceleration between 48 and 104 KM/H (30 and 65 MPH) at a steady state. Read More »
This Bulletin provides guidelines for Dealers required to contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of ... Read More »
This Preliminary Information communication provides information to the technician on the step to diagnose and repair the vehicles that may have a shake or shudder during light throttle acceleration, between 30 and 65 miles per hour steady ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Harsh Shift 1/2 and 2/3 and Sputter Applying Throttle Between 0 and 30%, Rough idle. Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPLACE THE STATOR SHAFT SUPPORT TO CORRECT CUSTOMER CONCERN ON A DELAYED ENGAGEMENT WHEN THE TRANSMISSION IS SHIFTED FROM PARK TO REVERSE OR PARK TO DRIVE AFTER THE VEHICLE HAS BEEN SITTING ... Read More »
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON TRANSMISSIONS WITH HARSH SHIFTS AFTER MILEAGE ACCUMULATION WITHOUT PREVIOUS REPAIRS AND/OR CALIBRATION UPDATES. Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPLACE THE STATOR SHAFT SUPPORT TO CORRECT CUSTOMER CONCERN ON A DELAYED ENGAGEMENT WHEN THE TRANSMISSION IS SHIFTED FROM PARK TO REVERSE OR PARK TO DRIVE AFTER THE VEHICLE HAS BEEN SITTING ... Read More »
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON HOW TO INSPECT THE UPPER VALVE BODY TO DETERMINE THE CORRECT RPO USAGE TO CORRECT A CONCERN THAT AFTER INSTALLATION OF A REPLACEMENT UPPER VALVE BODY, THE TRANSMISSION MAY HAVE NO ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS NEED TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE STALLING SHUDDER AND/OR HARD SHIFTING INTO 1ST GEAR OR REVERSE VIBRATION ON LAUNCH (WITH ... Read More »
this engineering informational bulletin is requesting information from the field on vehicles that have a Hard to Shift or Pops Out of Selected Gear Concerns That Cannot Be Duplicated Read More »
This preliminary informational bulletin provides a procedure to adjust the transmission control for conditions of Difficult to Shift into Gear, Intermittent Gear Pop Out and/or Mushy Shifts Read More »
15667 - SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO CHECK AND ADJUST TRANSMISSION FLUID LEVELS ON THE VEHICLES LISTED ABOVE. Read More »
CHEVROLET: ON CERTAIN VEHICLES, MANUAL TRANSMISSION EXPERIENCE A HARD SHIFTING AND/OR SHUDDERING GOING INTO 1ST GEAR OR REVERSE AND THERE IS A CLUNKING NOISE OR VIBRATION, WITH AUTO TRANSMISSION, DURING TAKEOFF. MODEL 2014-15 CORVETTE. Read More »
This engineering information bulletin annouces the end of need for information from the field regarding intermittent difficulty shifting, transmission leak and/or possible DTCs set. Read More »
GMC/CADILLAC/CHEVROLET: AFTER POSITIONING SHIFT LEVER INTO PARK, IT FAILS TO HOLD AND VEHICLE ROLLS WHEN BRAKE PEDAL IS RELEASED. MODEL 2013-15. Read More »
This Preliminary Information communication advises the technician that the 8L90 8 Speed Automatic Transmission is on exchange through General Motors Product Quality Center. Read More »
This Preliminary Information communication advises the technician that the LCT1000 6 Speed Allison automatic transmission is on restriction through General Motors Product Quality Center. Read More »
This Preliminary Information communication advises the technician that the 8L90 8 Speed Automatic Transmission is on exchange through General Motors Product Quality Center. Read More »
This preliminary informational bulletin provides a shifter assembly neutral position re-alignment procedure to correct a customer concern of difficult to shift into gear, intermittent gear pop out and/or mushy shifts (no grind). Read More »
This engineering information bulletin is requesting information from dealers on a customer concern of intermittent difficulty shifting, transmission leak and/or possible DTCs set. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE LCT1000 6 SPEED ALLISON AUTOMATIC TRANSMISSION IS ON RESTRICTION THROUGH GENERAL MOTORS PRODUCT QUALITY CENTER. Read More »
14876 - SERVICE UPDATE. ON CERTAIN VEHICLES EQUIPPED WITH 8-SPEED AUTOMATIC TRANSMISSION (M5U), THE CUSTOMER MAY COMPLAIN ABOUT HARSH SHIFTING. Read More »
This preliminary bulletin provides a procedure to perform a transmission inspection and adjustment before having to replace the parking pawl actuator if the inspection found no problem. Read More »
CHEVROLET: OIL WILL BE FORCED OUT OF PCV INTO INDUCTION SYSTEM IF NOT PROPERLY CHECKED FOR OVERFILLED AND ALSO AGGRESSIVE DRIVING, WITH LOW MILES, CAN PUSH OIL THROUGH PCV SYSTEM. MODEL 2014-15 CORVETTE. Read More »
This Preliminary Information communication advises the technician that the engine part number 19317708 and 19316786 restriction through General Motors Product Quality Center has ended. Read More »
This Preliminary Information communication advises the technician that the 8L90 8 Speed Automatic Transmission is on restriction through General Motors Product Quality Center. Read More »
THIS INFORMATION BULLETIN PROVIDES A PROCEDURE FOR THE TECHNICIANS TO PERFORM A TRANSMISSION RE-LEARN TO CORRECT A CUSTOMER CONCERN OF LOW MILAGE HARSH SHIFTING. Read More »
This Preliminary Information communication advises the technician that the T87 TCM for the 8L90 8 speed and the LCT1000 6 Speed Allison (MW7) automatic transmission is on restriction through General Motors Product Quality Center. Read More »
This Preliminary Information communication advises the technician that the 8L90 8 Speed Automatic Transmission is on restriction through General Motors Product Quality Center. Read More »
This informational bulletin provides information to the technician on what parts of an engine or transmission will require the PQC to be notified. Read More »
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. Read More »
This preliminary informational bulletin provides a procedure to adjust the transmission control for conditions of Difficult to Shift into Gear, Intermittent Gear Pop Out and/or Mushy Shifts Read More »
Recovery Process from a Controller Reprogramming Interruption During service reprogramming of the T87 TCM, some technicians may notice the TCM may fail during the reprogramming event and become unresponsive to the Service Programming ... Read More »
This Preliminary Information communication advises the technician that the Engine Control Module part number 12662034 was placed on restriction through the General Motors Product Quality Center. Read More »
This Preliminary Information communication advises the technician that the Engine Control Module part number 12662034 is on restriction through the General Motors Product Quality Center. Read More »
This Preliminary Information communication advises the technician that the Engine Control Module part number 12656993 and 12662034 placed on restriction through the General Motors Product Quality Center. Read More »
This Preliminary Information communication advises the technician that the T87 TCM for the 8L90 8 speed and the LCT1000 6 Speed Allison (MW7) automatic transmission is on restriction through General Motors Product Quality Center. Read More »
POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT
This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. Read More »
This service bulletin provides information for after installation of a replacement upper valve body, the transmission may have no Reverse and no 2nd gear. Read More »
POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)
This engineering informational bulletin is requesting information from the field on vehicles that have the condition of hard to shift or pops into gear concerns that cannot be duplicated. Read More »
POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT
This technical bulletin provides repair information to correct a customer concern of difficult to shift into gear, intermittent gear pop out and/or mushy shifts (no grind). Read More »
POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:FLOOR SHIFT
This technical bulletin provides repair information to correct a customer concern of difficult to shift into gear, intermittent gear pop out and/or mushy shifts (no grind). Read More »
This engineering information bulletin is requesting information from dealers on a customer concern of intermittent difficulty shifting, transmission leak and/or possible DTCs set. Read More »
POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER
This Preliminary Information communication provides information to the technician to refer to bulletin 16-NA-175 to aid in addressing torque converter clutch shudder concerns. Read More »
This Preliminary Information communication provides information to the technician on the step to diagnose and repair the vehicles that may have a shake or shudder during light throttle acceleration, between 30 and 65 miles per hour steady ... Read More »
This Preliminary Information communication provides information to the technician the some vehicles may have surge misfire feeling sensation during highway steady state driving in manual mode or automatic, typically in 6th, 7th, 8th gear ... Read More »
This Preliminary Information communication provides information to the technician on the step to diagnose and repair the vehicles that may have a shake or shudder during light throttle acceleration, between 30 and 65 mph steady state ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEP TO DIAGNOSE AND REPAIR THE VEHICLES THAT MAY HAVE A SHAKE OR SHUDDER DURING LIGHT THROTTLE ACCELERATION, BETWEEN 30 AND 65 MPH STEADY STATE ... Read More »
This Preliminary Information communication provides information to the technician a vehicle may have a shake or shudder during light throttle acceleration, between 30 and 65 mph steady driving. Read More »
This technical bulletin provides a procedure on replacing the stator shaft support for vehicles with the condition of a delayed engagement after sitting with the engine off. Read More »
POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH
This preliminary informational bulletin provides diagnosis and repair information to correct a customer concern of alleged no park, vehicle rolls in park or park will not hold. Read More »
Difficult to Shift into Gear, Intermittent Gear Pop Out and/or Mushy Shifts (No Grind) Condition/Concern Some customers may comment that the transmission is difficult to shift into gear, intermittent gear pop out occurs, or that the ... Read More »
POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:CLUTCHES/BANDS:ACTUATORS/SOLENOIDS
This technical bulletin provides a procedure to correct a condition of a rattle noise heard from the front of the vehicle when the engine is running at slower speeds. Read More »
THIS INFORMATIONAL BULLETIN EXPLAINS THE POSSIBLITY OF IMPROPERLY INSTALLING THE DRIVELINE AT WHICH IT MAY CAUSE EXCESSIVE PRESSURE ON THE CRANKSHAFT CREATING INTERNAL DAMAGE TO THE ENGINE. Read More »
This service bulletin provides a procedure to correct a condition of a rattle noise heard from the front of the vehicle when the engine is running at slower speeds. Read More »
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a no crank concern. Read More »
This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961). Read More »
This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Read More »
This service bulletin provides repair information to correct a customer concern of OnStar Inoperative after Importing Vehicle from Canada to the United States. Read More »
This service bulletin provides repair information to correct a customer concern of OnStar Inoperative after Importing Vehicle from Canada to the United States. Read More »
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations. Read More »
The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them. Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer. Read More »
This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961). Read More »
The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them. Read More »
This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. Read More »
This Preliminary information communicates a process to correct the concern of Unable to contact OnStar after the 3G EOL on 2015-2022 model year vehicles in the United States. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Read More »
This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set. Read More »
This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy. Read More »
The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Read More »
This Preliminary information communicates to the dealer technician that if after replacing the valve body on an 8L45 or 8L90 transmission the vehicle will not move the valve body may be missing a plug and retainer bolt. Read More »
This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Read More »
This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Read More »
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »
This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Read More »
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. Read More »
This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Read More »
This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This preliminary information bulletin provides information om Service Programming System (SPS) Error Codes E4398, E4399, E4403, M4404, M4413, E4414, E4423, E4491 or E6961). Read More »
This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. Read More »
This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module. Read More »
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. Read More »
This technical bulletin provides repair information to correct a customer concern of Audio Muting When Listening to Some SiriusXM Channels Due to Interference in Some Geographic Locations. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P0106 and P0506. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P0106 and P0506. Read More »
This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer. Read More »
This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module. Read More »
This Preliminary Information communication provides information to the technician about connectivity concerns when connecting an Apple device via USB cord. Read More »
This technical bulletin provides a procedure to properly reprogram an onstar module to correct a condition of Red LED, No WiFi Operation, and/or Limited OnStar? Module Functionality After OnStar Module Replacement for Another Condition. Read More »
This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the voice recognition is inoperative. Technician will need to toggle through all languages then back to the desired language. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. Read More »
This informational bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries. Read More »
This technical bulletin provides repair information for repairing the IP to body harness connector to correct a customer concern for intermittent Malfunction Indicator Lamp (MIL) illuminated with Reduced Engine Power displayed and DTC ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Read More »
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. Read More »
This informational bulletin provides information for programming the low speed LAN module due to the mirrors memory position reverse tilt position is inoperative. Read More »
This informational bulletin communicates part restriction and ordering process information for OnStar Vehicle Communication Interface Modules (VCIM) (GMNA Only). Read More »
This Preliminary Information communication provides information to the technician about the text messaging feature on some newer General Motors infotainment systems. Read More »
15086A - Customer Satisfaction Program. On certain passenger cars and light duty trucks, equipped with Gen 10 OnStar?, the embedded phone flash memory chip may become corrupted, causing the OnStar? system to become inoperative. Read More »
This Preliminary Information communication provides information to the technician about vehicles that do not recognize the SD card when it is used in the Performance Data Recorder (PDR) system. Read More »
This informational bulletin provides information on On rare occasions, a security code input message with SPS error code E5659, M5304, and/or M5530 may be displayed in TIS2web when the technician is programming any module. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a message on the radio ?maximum number of phones are currently paired to the vehicle?. Read More »
This Preliminary Information communication provides information to the technician with a diagnostic tip for the OnStar back-up battery failure. Technician may find Diagnostic Trouble Code B1446 or B1447 and the OnStar LED is red. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D-37 history in the Vehicle Communication Interface Module or telematics communication interface ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code P3400 setting. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
This technical bulletin provides information on Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the transport mode message on and off. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the voice recognition is inoperative. Technician will need to toggle through all languages then back to the desired language. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE THE ONSTAR WIRELESS FIDELITY INOPERATIVE. Read More »
This engineering informational bulletin is requesting information from the field of vehicles with the condition of power seat, memory recall, and easy exit recall function seems erratic or seems to operate intermittently. Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO CHECK THE CYLINDERS FOR DAMAGED PISTONS AND DETERMINE IF THE USE OF AFTERMARKET CALIBRATIONS OR PERFORMANCE PARTS MAY BE THE CAUSE. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT THE USE OF J-35616-64B TERMINAL TEST PROBE, REPLACEMENT TERMINALS, AND TERMINATED LEADS. Read More »
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION FOR IGNITION KEY, FOB, KEY TAGS AND KEY RINGS CONFIGURATION FOR VARIOUS VEHICLES AND APPLYING A QR CODE STICKER OR BARCODE STICKER TO THE FOB. Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REMOVE THE TRANSPORT MODE ON MESSAGE DISPLAYED IN THE DIC DUE TO VEHICLES SHIPPED OVER LONG DISTANCES OUTSIDE THE U.S. AND CANADA. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON STEPS TO PERFORM TO DETERMINE IF THE CUSTOMER'S BATTERY DRAIN CONCERN IS BEING CAUSED BY A KNOWN CONCERN WITH BLUETOOTH CALL TRANSFER OPERATION WHEN EXITING THE VEHICLE. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT ,WHEN TESTING ANY CIRCUIT FOR OPEN OR RESISTANCE, IT IS IMPERATIVE THAT ALL RELATED TERMINAL PIN FIT AND TENSION BE CHECKED WHEN THE TEST STEPS REQUIRE DISCONNECTION ... Read More »
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON THE IDENTIFICATION OF VEHICLES THAT ARE SHIPPED WITH THE TRANSPORT MODE ON AND HOW TO TURN IT OFF. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF BLACK SMOKE WHEN STARTING THE VEHICLE AFTER SITTING. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF A DEAD BATTERY AFTER LEAVING THE VEHICLE DURING A BLUETOOTH CALL. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE THE CONCERN, AND THE STEPS TO REPAIR THE CONCERN OF THE VEHICLE CRANKS BUT DOES NOT START. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC DRAIN TEST FOR THE ONSTAR MODULE. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC DRAIN TEST FOR THE ONSTAR MODULE. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION FOR THE DEALER TO PLEASE COMMUNICATE TO THE CUSTOMER THIS CONDITION IS A NORMAL OPERATING CHARACTERISTIC OF THEIR VEHICLE. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON DIAGNOSING THE CONCERN. VEHICLE'S SUNROOF OPERATION INTERMITTENT, BIND, NOISE, AUTO-REVERSE, AND/OR WATER LEAKS. Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPROGRAM THE RADIO TO CORRECT A CUSTOMER CONCERN OF RADIO INOPERATIVE, BLUE SCREEN, AM CLIPPING NOISE, HD ON/OFF STATUS NOT RETAINED IN STATIONS, TIME LAG ON TRANSITIONS, NO AUDIO WITH ... Read More »
This preliminary informational bulletin provides information on GM Accessory Remote start not working with onstars remotelink phone applications Read More »
15521 - CUSTOMER ADVISORY LETTER. THIS LETTER IS BEING SENT TO BRING TO THE CUSTOMER'S ATTENTION FEATURES THAT ARE COVERED IN THE VEHICLE'S OWNER MANUAL IN SITUATIONS WHERE THE CUSTOMER VEHICLE SIDE DOORS WILL NOT OPEN FROM INSIDE AND ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a no start or multiple messages on the Driver Information Center during cold weather. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have the base power seat, Memory Recall, and Easy Exit Recall functions may seem erratic or seem to operate intermittently. Read More »
15038 - Dealer Message Only - Not a Field Action. Select 2015 model year vehicles will receive a software download via OnStar? to update the software for the Electronic Climate Control (ECC) system. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Read More »
This informational bulletin provides information that may be useful in diagnosing/testing batteries that have set for a long period of time and/or set in cold weather climates to correct a customer concern of symptoms that include, but ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an inoperative radio. Technician may find Diagnostic Trouble Code U0184 stored in multiple modules. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the incoming caller ID may no longer be available or displayed after the Canada OnStar upgrade. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have the Active Rev Matching feature to be inoperative. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Read More »
This Preliminary Information communication provides information to the technician about customers that may complain of various concerns when using Bluetooth components. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Read More »
This Preliminary Information communication for the dealer to please communicate to the customer this condition is a normal operating characteristic of their vehicle. Read More »
This Preliminary Information communication provides information to the technician about the text messaging feature on some newer General Motors infotainment systems. Read More »
This technical bulletin provides repair information for the correction of a customer concern of short duration musty odors emitted from the HVAC system at vehicle start-up in hot, humid conditions. Read More »
This Preliminary Information communication for the dealer to please communicate to the customer this condition is a normal operating characteristic of their vehicle. Read More »
This informational bulletin provides information to dealership personnel regarding warranty codes generated by EL-50313 Midtronics GR8 Battery Tester/Charger required for claim processing on labor operations 4041510, 4041520 and 250 ... Read More »
This Preliminary Information communication provides information to the technician about when listening to an iPod that the first song will still be displayed when the next song in the list is playing. Read More »
This technical bulletin provides repair information for repairing the IP to body harness connector to correct a customer concern for intermittent Malfunction Indicator Lamp (MIL) illuminated with Reduced Engine Power displayed and DTC ... Read More »
This Preliminary Information communication provides information to the technician to download the USB software from TIS2WEB using the vehicle identification number every time a programming event of the human machine interface module is ... Read More »
This Preliminary Information communication provides information to the technician about being unable to receive OnStar ?Over The Air? updates. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have the OnStar wireless fidelity inoperative. Read More »
This Preliminary Information communication provides information to the technician on how to tell the difference between the integrated center stack, the radio, the human machine interface, and the vehicle communication interface module. Read More »
This technical bulletin provides repair procedure information to correct a customer concern of Transport Mode On message displayed in Driver Information Center (DIC) and/or battery light is flashing. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a clock that is slow to update while driving when the clock auto set feature enabled. Read More »
This preliminary informational bulletin provides radio programming information to correct customer concerns about no XM audio or time shift, radio lock-up, slow response, vertical line between clock and temperature, poor FM reception ... Read More »
This preliminary informational bulletin provides reprpgramming information to correct a customer concern of blank display, NAV screen audio content is unavailable via speech recognition, display screen is stuck on incoming call view after ... Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
14395A - CUSTOMER SATISFACTION PROGRAM (REVISED LABOR TIME). ON SOME 2015 MODEL YEAR BUICK ENCORE, LACROSSE, REGAL, AND VERANO; CADILLAC ATS, CTS, ELR, ESCALADE, SRX AND XTS; CHEVROLET COLORADO, CORVETTE, CRUZE, EQUINOX, IMPALA, MALIBU, ... Read More »
This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, display, and Media Disc Players are placed on restriction through the General ... Read More »
This Preliminary Information communication advises the technician that the E92 Engine Control Module part number 12662034 part restriction through General Motors Product Quality Center has ended. Read More »
This Preliminary Information communication provides information to the technician about the Media Oriented Systems Transport Bus Diagnostic Tool Kit (EL-51578) has been released to help diagnose any of the Media Oriented Systems Transport ... Read More »
This informational bulletin provides information on dealer reimbursement procedures for Customer Assistance Center (CAC) Tier 1 and Tier 2 empowerment tools: diagnostic fee, short term rental, and up-front towing (U.S. only). Read More »
This Preliminary Information communication provides information to the technician about vehicles that the does not recognize the SD card when inserted into performance data recorder. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE A BLANK DISPLAYS, FLASHING DISPLAYS, ?ERROR OR UPDATE FAILED MESSAGES?, NAVIGATION MAP NOT LOADING, BLUETOOTH OR USB CONCERNS. Read More »
This informational bulletin provides information on control module diagnostics and configuration, programming using the TIS Service Programming System (SPS), set-up and warranty. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THE STEPS NEEDED TO DIAGNOSE AND REPAIR THE VEHICLES THAT MAY HAVE UNWANTED OR PHANTOM PHONE CALLS. Read More »
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D-37 history in the Vehicle Communication Interface Module or telematics communication interface ... Read More »
This Preliminary Information communication advises the technician how determine if the vehicle is equipped with wireless fidelity. Technician should check the Regular Production Option Code list for (VV4). Read More »
This Preliminary Information communication provides information to the technician about vehicles with wireless fidelity inoperative after the OnStar module was replaced. Read More »
This Preliminary Information communication provides information to the technician about vehicles with OnStar WIFI is inoperative after a VCIM replacement. Read More »
This Preliminary Information communication provides information to the technician about two rings and a coil of safety wire included in the loose items bag. These are the front brake rotor cooling rings. Read More »
This Preliminary Information communication advises the technician that If it is determined the crankshaft needs to be replaced complete the Service Information diagnostics to determine if the crankshaft requires replacement. Read More »
This Preliminary Information communication advises the technician that the Engine Control Module part number 12662034 was placed on restriction through the General Motors Product Quality Center. Read More »
This Preliminary Information communication advises the technician that the Engine Control Module part number 12662034 is on restriction through the General Motors Product Quality Center. Read More »
This Preliminary Information communication provides information to the technician how to diagnose and repair a vehicle with an engine that runs with an intermittent crank no start with a Diagnostic Trouble Code P0011 or P00C6 current or ... Read More »
This Preliminary Information communication advises the technician that the Engine Control Module part numbers 12656993 and 12662034 are on part restriction through the General Motors Product Quality Center. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This Technical bulletin provides a procedure to request a hard mute from Onstar when navigation is annoucing directions and to correct the customers concern of the radio being loud during navigation. Read More »
This informational bulletin explains if the fuse is open when the customer plugs in the trailer, that it may be the cause if diagnostics finds no problems to that point. Read More »
This technical bulletin provides a procedure to disconnect the battery if the repairs were done to the vehicle and the technician was unable to clear the codes. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. Read More »
This Preliminary Information communication provides information to the technician how to diagnose and repair vehicles with an engine that runs with an intermittent crank no start with a Diagnostic Trouble Code P0011 or P00C6 current or ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a frequent "off route" messages while following Turn by Turn route. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. Read More »
This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. Read More »
This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses. Read More »
This technical bulletin provides information on Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the transport mode message on and off. Read More »
This informational bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries. Read More »
This bulletin provides information on replacing the prop shaft hub clamp (AT) or the input shaft frt bearing (MT) whenever the driveline support assembly has been removed for repair. Read More »
This technical bulletin provides information on Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the transport mode message on and off. Read More »
This technical bulletin provides information on Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the transport mode message on and off. Read More »
This Preliminary Information communication provides information to the technician with a diagnostic tip for the OnStar back-up battery failure. Technician may find Diagnostic Trouble Code B1446 or B1447 and the OnStar LED is red. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF A DEAD BATTERY AFTER LEAVING THE VEHICLE DURING A BLUETOOTH CALL. Read More »
15521 ? CUSTOMER ADVISORY LETTER. ON THESE VEHICLES, IF THE SIDE DOORS WILL NOT OPEN FROM INSIDE THE VEHICLE DUE TO LOW OR NO BATTERY VOLTAGE, SUCH AS A DISCHARGED OR DISCONNECTED BATTERY, OR IF THE VEHICLE IS ENTERED WITHOUT THE KEY FOB ... Read More »
15521 ? Customer Advisory Letter. On these vehicles, if the side doors will not open from inside the vehicle due to low or no battery voltage, such as a discharged or disconnected battery, or if the vehicle is entered without the key fob ... Read More »
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION THAT MAY BE USEFUL ON DIAGNOSING BATTERIES THAT HAVE SET FOR A LONG PERIOD OF TIME AND/OR SET IN COLD WEATHER CLIMATES AND TESTING THOSE BATTERIES. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC DRAIN TEST FOR THE ONSTAR MODULE. Read More »
This informational bulletin provides information on Original Equipment Batteries Part Number and ACDelco Replacement Battery Approved Warranty Part Numbers Read More »
15521 - CUSTOMER ADVISORY LETTER. THIS LETTER IS BEING SENT TO BRING TO THE CUSTOMER'S ATTENTION FEATURES THAT ARE COVERED IN THE VEHICLE'S OWNER MANUAL IN SITUATIONS WHERE THE CUSTOMER VEHICLE SIDE DOORS WILL NOT OPEN FROM INSIDE AND ... Read More »
This informational bulletin provides information to dealership personnel regarding original equipment battery part numbers and AC Delco replacement battery approved warranty part numbers. Read More »
This informational bulletin provides information to dealership personnel regarding original equipment battery part numbers and AC Delco replacement battery approved warranty part numbers. Read More »
BUICK/CADILLAC/ GMC/ CHEVROLET: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. BATTERY IS DEAD DUE TO ONSTAR MODULE AND IF VEHICLE FAILS TO START AFTER 4 DAYS AND OCCURS EVEN IF ONSTAR SYSTEM IS NOT ACTIVE. *PE UPDATED 11/6/15. Read More »
This informational bulletin provides information that may be useful in diagnosing/testing batteries that have set for a long period of time and/or set in cold weather climates to correct a customer concern of symptoms that include, but ... Read More »
This warranty bulletin explains how to use the EL-50313 Midtronic GR8 Battery tester to test a battery and determin if it is warranty or not. Read More »
This warranty bulletin explains how to use the EL-50313 Midtronic GR8 Battery tester to test a battery and determin if it is warranty or not. Read More »
This warranty bulletin explains how to use the EL-50313 Midtronic GR8 Battery tester to test a battery and determin if it is warranty or not Read More »
This preliminary informational bulletin provides a diagnostic tip for low line pressure or pressure regulator valve stuck after transmission service pump cover replacement. Read More »
This informational bulletin provides information on vehicles may rock or move slightly forward or rearward while in Park at start up after cold soak and that this is considered a normal conditon and no repairs are ... Read More »
This Preliminary Information communication provides information to the technician how to diagnose and repair a vehicle with an engine that runs with an intermittent crank no start with a Diagnostic Trouble Code P0011 or P00C6 current or ... Read More »
This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs. Read More »
This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs. Read More »
This informational bulletin provides warranty policy information on revised wiring repair labor operations and required additional information. Read More »
This informational bulletin provides warranty policy information on revised wiring repair labor operations and required additional information. Read More »
This warranty administration bulletin adds the 2016 model year to a communication which provides dealership personnel revised wiring repair labor operations and required additional information. Read More »
This Preliminary Information communication provides information to the technician for the heated and cooled seat switches or HVAC control buttons flash or flicker at times. Do not replace the button assembly for this concern. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Read More »
This Preliminary Information communication provides information to the technician about the text messaging feature on some newer General Motors infotainment systems. Read More »
15521 ? Customer Advisory Letter. On these vehicles, if the side doors will not open from inside the vehicle due to low or no battery voltage, such as a discharged or disconnected battery, or if the vehicle is entered without the key fob ... Read More »
This preliminary informational bulletin adds the 2015 model year to repair information on correcting a customer concern of poor, limited, reduced Remote Keyless Entry (RKE) or Remote Vehicle Start (RVS) range. Read More »
15521 ? Customer Advisory Letter. On these vehicles, if the side doors will not open from inside the vehicle due to low or no battery voltage, such as a discharged or disconnected battery, or if the vehicle is entered without the key fob ... Read More »
This Preliminary Information is to assist dealership technicians in diagnosing a complaint related to the variable red line feature surrounding the tachometer gauge. Read More »
This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability. Read More »
This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability. Read More »
This technical bulletin provides information on Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the transport mode message on and off. Read More »
This Preliminary Information communication provides information to the technician about vehicle's odometer appears to be inaccurate relative to a known distance traveled. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE THE LAP TIMER MISSING FROM DRIVER INFORMATION CENTER. Read More »
This technical bulletin provides a procedure to Apply Super Lube to the Cluster Bezel and Lens Stand Off and Guide Pin Locations to correct a condition of a creak, itch, and or squeaking type noise heard from instrument cluster lens ... Read More »
This technical bulletin provides a procedure on how to take the vehicles out of transport mode for vehicles with the condition of Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is ... Read More »
This informational bulletin provides information on If the radar does not see any vehicles, structures, or objects for 15-25 minutes of driving, the system may think its blocked and display the ?Side Object Detection System Disabled? ... Read More »
This informational bulletin provides Information on Inappropriate Warranty Claims Submitted for Damaged Radios and Instrument Panel Clusters (IPCs) Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THAT AFTER REPLACING THE INSTRUMENT PANEL CLUSTER THE EXCHANGE CENTER IS UNABLE TO PROGRAM THE ACTUAL MILEAGE ON THE ODOMETER OR THE ACTUAL MILEAGE IS ... Read More »
This informational bulletin provides dealership personnel with information on interior cleaning of Instrument Panel (IP), hard or plastic surfaces, seats, carpet, leather, vinyl, fabric cleaner, stain remover, restorer and product ... Read More »
This preliminary informational bulletin provides repair information on instrument cluster reprogramming to correct a customer concern of analog gauges and/or cluster display inoperative at startup, or cluster display/analog ... Read More »
This preliminary informational bulletin provides repair information for instrument cluster reprogramming to correct a customer concern of instrument cluster driver information center goes blank or analog speedometer inaccurate. Read More »
This preliminary informational bulletin provides repair information for instrument cluster reprogramming to correct a customer concern of instrument cluster driver information center goes blank or analog speedometer inaccurate. Read More »
This preliminary informational bulletin provides information regarding the normal characteristic of instrument panel red brake light intermittently comes on. Read More »
IPC Odometer Programming Method Quick Reference Guide Season Odometer Programming Methods in Use Today 1. IPC reprogramming and setup using the service programming system (SPS). 2. Read More »
ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER:SENSOR/SENDING UNIT
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares. Read More »
This Preliminary Information communication provides information to the technician about the text messaging feature on some newer General Motors infotainment systems. Read More »
This informational bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2 9U.S. and Canada Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D-37 history in the Vehicle Communication Interface Module or telematics communication interface ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Read More »
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »
This informational bulletin provides information on Information on How to Prevent Inadvertent Vehicle Starting from Key Fob or OnStar Mobile Application and where to locate the information for future use. Read More »
This informational bulletin provides to the tech the new version of SPS that will prompt warnings when trying to reprogram modules that have been already reprogrammed. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
This Preliminary Information communication provides information to help the dealership technicians perform a parasitic drain test for the OnStar module. Read More »
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »
This Preliminary Information communication provides information to the technician the steps needed to diagnose and repair the vehicles that may have unwanted or phantom phone calls. Read More »
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have an OnStar Turn-By-Turn Navigation the system that is inoperative. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This informational bulletin provides information on OnStar? VCIM is currently restricted parts. By working closely with our dealers and technicians, through the part restriction process, the General Motors team will gain a better ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have harsh concerns. Technician are advised to use GDS2 software to confirm which shift is causing the concern. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Read More »
This Preliminary Information communication provides information to the technician about vehicles with various Heater-Vent-Air Conditioning blower mode or temperature issues. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have "Service Theft System" message on the Driver Information Center. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE THE ONSTAR WIRELESS FIDELITY INOPERATIVE. Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPROGRAM THE RADIO CONTROLLER DUE TO A SOFTWARE CONCERN CAUSING THE HVAC AND RADIO CONTROLS TO GO INOPERATIVE. Read More »
This informational bulletin provides information on identifying non-GM (aftermarket) engine calibrations for gasoline engines using Tech 2 or GDS 2. Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPROGRAM THE RADIO TO CORRECT A CUSTOMER CONCERN OF RADIO INOPERATIVE, BLUE SCREEN, AM CLIPPING NOISE, HD ON/OFF STATUS NOT RETAINED IN STATIONS, TIME LAG ON TRANSITIONS, NO AUDIO WITH ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION IS TO CONTACT GM TECHNICAL ASSISTANCE CENTER TO REPORT THE CONCERN AND OBTAIN A CASE NUMBER. THE CUSTOMER IS UNABLE TO SELECT RADIO PRESETS FROM THE USB OR SD CARD AS THEY ARE GREYED OUT. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Read More »
This Preliminary Information communication advises the technician that some vehicles intermittently the favorites saved from a USB drive or SD card are grayed out and not selectable. Read More »
This technical bulletin provides a procedure to update your apple product to the latest software version to correct a condition of infotainment system will not return to media after bluetooth call ... Read More »
Recovery Process from a Controller Reprogramming Interruption During service reprogramming of the T87 TCM, some technicians may notice the TCM may fail during the reprogramming event and become unresponsive to the Service Programming ... Read More »
This technical bulletin provides repair information on Engine Control Module (ECM) reprogramming for the correction of a customer concern of Malfunction Indicator Lamp (MIL) on, DTC P2227 set. Read More »
15038 - Dealer Message Only - Not a Field Action. Select 2015 model year vehicles will receive a software download via OnStar? to update the software for the Electronic Climate Control (ECC) system. Read More »
This preliminary informational bulletin adds the 2014 - 2016 model years to cleaning information to correct a customer concern of seeing a white film/residue on the IP pad and/or door trim panels. Read More »
This Preliminary Information communication provides information to the technician about a connectivity concern with Bluetooth after phone software is updated or after any vehicle updates for the radio or Human Machine Interface has taken ... Read More »
This Preliminary Information communication provides information to the technician to download the USB software from TIS2WEB using the vehicle identification number every time a programming event of the human machine interface module is ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have low oil pressure message. Technician may also find a Diagnostic Trouble Code P0521 in the Engine Control Module. Read More »
15038 - DEALER MESSAGE ONLY. SELECT 2015 VEHICLES WILL RECEIVE A SOFTWARE DOWNLOAD VIA ONSTAR? TO UPDATE THE SOFTWARE FOR THE ELECTRONIC CLIMATE CONTROL (ECC) SYSTEM. Read More »
This preliminary informational bulletin provides repair information on Performance Data Recorder (PDR) reprogramming to correct a customer concern of booming sound during vehicle PDR Playback. Read More »
This preliminary informational bulletin provides repair information on Performance Data Recorder (PDR) reprogramming to correct a customer concern of poor PDR video playback clarity. Read More »
This Preliminary Information communication advises the technician to call General Motors Technical Assistance Center if the customer has a malfunction indicator lamp on and there is a diagnostic trouble code P16F3 set in the transmission ... Read More »
This informational bulletin communicates part restriction and ordering process information for OnStar?Vehicle Communication Interface Modules (VCIM) (GMNA Only). Read More »
This Preliminary Information communication advises the technician to reprogram the engine control module for an active rev matching feature inoperative concern. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have various Heater-Vent-Air Conditioning issues. Read More »
This preliminary informational bulletin provides radio programming information to correct customer concerns about no XM audio or time shift, radio lock-up, slow response, vertical line between clock and temperature, poor FM reception ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a repeat harsh shift, slip or flare concern. Read More »
This informational bulletin adds the 2014 and 2015 model years to information of a language change for OnStar System (U.S. and Canada only). Read More »
This informational bulletin communicates Information to technicians on control module Diagnostic Trouble Code(s) (DTC)(s) P0601, P0602, P0603, P0604, P0606, P062F, P06F3, P1621 which can be shared in multiple modules. Read More »
This preliminary informational bulletin provides repair information to correct a customer concern of no GPS signal displayed or navigation system does not recognize location of vehicle. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a blank displays, flashing displays, "Error or Update failed Messages", navigation map not loading, Bluetooth or USB concerns. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have the Active Rev Matching feature to be inoperative. Read More »
This informational bulletin was created to help technician identify non GM calibrations for the gasoline engines and the damages that may be caused by aftermarket calibrations Read More »
This informational bulletin was created to help technician identify non GM calibrations for the gasoline engines and the damages that may be caused by aftermarket calibrations Read More »
This Preliminary Information communication provides information to the technician about vehicles that are travelling from Canada to the United States. While in the United States they are unable to receive Turn-by-Turn directions. Read More »
PERFORMANCE DATA RECORDER MESSAGE. THE PERFORMANCE DATA RECORDER (UQT) IN THESE VEHICLES, WHEN USED IN VALET MODE, ALLOWS A CUSTOMER TO RECORD THE DRIVING OF THEIR CORVETTE WHEN THE VEHICLE IS NOT IN THEIR CONTROL. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the voice recognition is inoperative. Technician will need to toggle through all languages then back to the desired language. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the voice recognition is inoperative. Technician will need to toggle through all languages then back to the desired language. Read More »
This warranty bulletin explains how to use the EL-50313 Midtronic GR8 Battery tester to test a battery and determin if it is warranty or not. Read More »
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have an OnStar Turn-By-Turn Navigation the system that is inoperative. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have the OnStar system does not respond properly to some numbers and/or voice commands. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. Read More »
This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines. Read More »
This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Read More »
This preliminary informational bulletin provides a diagnostic tip for a customer concern of Malfunction Indicator Lamp (MIL) on, and technician finding DTC P0503 only set with no other symptoms. Read More »
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON EXTERIOR LIGHTING COMPONENTS THAT HAVE BEEN TINTED OR SMOKED BY AN OUTSIDE VENDOR AND GENERAL MOTORS POSITION ON ALTERING THESE COMPONENTS. Read More »
This informational bulletin provides an out line on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage and what should be considered warranty replacement and not Read More »
This informational bulletin provides an out line on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage and what should be considered warranty replacement and not Read More »
This preliminary informational bulletin provides information regarding the normal characteristic of instrument panel red brake light intermittently comes on. Read More »
This informational bulletin provides an out line on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage and what should be considered warranty replacement and not Read More »
This preliminary informational bulletin provides information regarding the normal characteristic of instrument panel red brake light intermittently comes on. Read More »
This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Read More »
This informational bulletin provides information for assisting the customer in setting the position for the memory mirror and the reverse tilt Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON DIAGNOSING THE CONCERN. VEHICLE'S SUNROOF OPERATION INTERMITTENT, BIND, NOISE, AUTO-REVERSE, AND/OR WATER LEAKS. Read More »
This preliminary bulletin provides a procedure to replace the windshild to correct the customers concern of a loose mirrior and/or bracket fell off. Read More »
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON A NORMAL CONDITION ON TEMPERED GLASS OF SPOTS SHOWING ON THE REAR AND SIDE WINDOWS WHEN THE VEHICLE IS IN THE SUNLIGHT. Read More »
This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks. Read More »
This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks. Read More »
This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks. Read More »
This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks. Read More »
This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks. Read More »
This technical bulletin provides information on a new design weatherstrips to correct the customer concern on the appearance of the weatherstrip sticking out after the roof has been reinstalled. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON DIAGNOSING THE CONCERN. VEHICLE'S SUNROOF OPERATION INTERMITTENT, BIND, NOISE, AUTO-REVERSE, AND/OR WATER LEAKS. Read More »
This preliminary bulletin provides a procedure to replace the windshild to correct the customers concern of a loose mirrior and/or bracket fell off. Read More »
This warranty bulletin explains how to determine if an outside mirrior was damaged by the customer and what is considered warranty and non-warranty. Read More »
This warranty bulletin explains how to determine if an outside mirrior was damaged by the customer and what is considered warranty and non-warranty. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Read More »
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. Read More »
This service bulletin provides service /diagnostic information to aid with a Transmission Harsh 1-2 Shift Upon First Start Up/Shift of the Day Under Light Throttle. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Read More »
In situations where your vehicle side doors will not open from INSIDE the vehicle due to low or no battery voltage, such as a discharged or disconnected battery, or if the vehicle is entered without the key fob or the fob is not working, ... Read More »
This informational bulletin provides Information on Passenger Presence Sensing System (PPS or PSS) Concerns with Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices Read More »
THIS PRELIMINARY INFORMATIONAL BULLETIN PROVIDES A PROCEDURE TO REPOSITION THE FRONT SEAT BELT LATCH PLATE FOR CONCERNS REGARDING THE SEAT BELT WEBBING OR LATCH PLATE COMING TWISTED. Read More »
This informational bulletin provides information to advise dealers about seat belt buckles not operating and/or seat belt warning light illumination, as well as difficulty latching and unlatching the buckle or the buckle release button ... Read More »
This informational bulletin provides information to advise dealers about seat belt buckles not operating and/or seat belt warning light illumination, as well as difficulty latching and unlatching the buckle or the buckle release button ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a rattle or flutter noise from the supercharger tensioner and belt. Read More »
This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers. Read More »
This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers. Read More »
This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Read More »
This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers. Read More »
This preliminary informational bulletin provides information on Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Read More »
This Preliminary information communicates to the dealer technician to inspect for a missing 1-2-7-8-R clutch fluid passage seal or incorrect 1-2-7-8-R clutch fluid passage seal being install for a no movement concern after valve body ... Read More »
This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats warped or misshapen. Read More »
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have rattle or ticking noise that is louder inside the vehicle than outside. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATES THE HARD-TO-FIND PAINT CODE FOR THE REAR HATCH AREA OF THE VEHICLE. THE TECHNICIAN IS TO USE PAINT CODE WA167A TO PAINT THESE AREAS. Read More »
This informational bulletin provides information on the PQC assembly replacement process - for dealers required to contact PQC prior to replacing an assembly (U.S. and Canada only). Read More »
This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Read More »
This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers. Read More »
This preliminary informational bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers. Read More »
THIS PRELIMINARY INFORMATIONAL BULLETIN PROVIDES INFORMATION THAT MAY BE HELPFUL WHEN ADDRESSING UNDERBODY COMPONENT CORROSION WITH CUSTOMERS. Read More »
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only). Read More »
This preliminary informational bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers. Read More »
This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF A RATTLE OR TICKING NOISE THAT IS LOUDER INSIDE THE VEHICLE THAN OUTSIDE. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON DIAGNOSING THE CONCERN. VEHICLE'S SUNROOF OPERATION INTERMITTENT, BIND, NOISE, AUTO-REVERSE, AND/OR WATER LEAKS. Read More »
This technical bulletin provides repair information to correct a customer concern of hearing a door rattle noise from outside of vehicle during high radio volume or high bass levels. Read More »
15521 ? CUSTOMER ADVISORY LETTER. ON THESE VEHICLES, IF THE SIDE DOORS WILL NOT OPEN FROM INSIDE THE VEHICLE DUE TO LOW OR NO BATTERY VOLTAGE, SUCH AS A DISCHARGED OR DISCONNECTED BATTERY, OR IF THE VEHICLE IS ENTERED WITHOUT THE KEY FOB ... Read More »
This preliminary informational bulletin provides steps to verify proper operation of the hatch latching system to correct a customer concern of rear hatch difficult to close or high effort to close rear hatch. Read More »
This technical bulletin provides a procedure to reposition the coolant surge hose clamp away from the hood blanket to avoid hood closing interference. Read More »
This technical bulletin provides repair information to correct a customer concern of a creak or snap noise from the front of the removable roof lift off panel while driving. Read More »
This informational bulletin provides Information Regarding Painting Transparent Removable Roof Panel, and how it is not covered under the new vehicle warranty for the transparent roof. Read More »
This preliminary informational bulletin provides steps to verify proper operation of the hatch latching system to correct a customer concern of rear hatch difficult to close or high effort to close rear hatch. Read More »
This Preliminary Information communication provides information to the technician a vehicle may have a shake or shudder during light throttle acceleration, between 30 and 65 mph steady driving. Read More »
In situations where your vehicle side doors will not open from INSIDE the vehicle due to low or no battery voltage, such as a discharged or disconnected battery, or if the vehicle is entered without the key fob or the fob is not working, ... Read More »
This Preliminary Information communication provides information to the technician on the step to diagnose and repair the vehicles that may have a shake or shudder during light throttle acceleration, between 30 and 65 miles per hour steady ... Read More »
This service bulletin provides information for accurate tire pressures that ensure the safe handling and appropriate ride characteristics of GM cars and trucks. Read More »
This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Read More »
This service bulletin provides information for dealers/technicians on Tire/Wheel Characteristics (Vibration, Balance, Shake, Flat Spotting) of GM Original Equipment Tires. Read More »
This informational bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining. Read More »
This informational bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining. Read More »
This informational bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining. Read More »
This service bulletin provides information on tire cold weather cracking and the proper techniques on taking care of the tires and proper use. Read More »
This warranty administration bulletin provides information on the tires supplied with a new vehicle are covered by General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty. Read More »
This informational bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining. Read More »
This technical bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel ... Read More »
This informational bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining. Read More »
This bulletin contains information for the new tires that the vehicle is equipped with and that they are covered by General Motors against defects in material or workmanship under the New Vehicle Warranty (in Canada, the Base Warranty ... Read More »
This warranty administration bulletin provides information on The tires supplied with a new vehicle are covered by General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty. Read More »
This bulletin contains information for the new tires that the vehicle is equipped with and that they are covered by General Motors against defects in material or workmanship under the New Vehicle Warranty (in Canada, the Base Warranty ... Read More »
This bulletin contains information for the new tires that the vehicle is equipped with and that they are covered by General Motors against defects in material or workmanship under the New Vehicle Warranty (Base Warranty Coverage). Read More »
This warranty administration bulletin provides information on The tires supplied with a new vehicle are covered by General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty. Read More »
This informational bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining. Read More »
This informational bulletin provides customers and dealership personnel with information on the common vehicle characteristic of tire hop / tire chatter during tight turns at parking lot speeds. Read More »
This technical bulletin provides a procedure on how to clean and resurface wheel bead seats. for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead ... Read More »
This bulletin contains information for the new tires that the vehicle is equipped with and that they are covered by General Motors against defects in material or workmanship under the New Vehicle Warranty (Base Warranty Coverage). Read More »
This warranty administration bulletin provides information on The tires supplied with a new vehicle are covered by General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty. Read More »
This informational bulletin provides information on tire cold weather cracking and the proper techniques on taking care of the tires and proper use. Read More »
This warranty administration bulletin provides information on The tires supplied with a new vehicle are covered by General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty. Read More »
This GM of Canada New Vehicle Tire Warranty Program and GWM Transaction Submission Information Bulletin provides information for the new tires that the vehicle are equipped with and that they are covered by General Motors against defects ... Read More »
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON THE RUBBER USED IN SOME PERFORMANCE TIRES LOSES FLEXIBILITY AND MAY DEVELOP SURFACE CRACKS IN THE TIRE TREAD/SHOULDER AREA AT COLDER TEMPERATURES. Read More »
This informational bulletin provides information on the proper mounting paste to apply to tires when mounting and balancing them to prevent conditions like Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip ... Read More »
This informational bulletin provides additional information to the technician on how to check for Tire Radial Force Variations and the difference between balancing a flange and flangeless rim. Read More »
This informational bulletin provides customers and dealership personnel with information on the common vehicle characteristic of tire hop / tire chatter during tight turns at parking lot speeds. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts are being performed on customer?s vehicles that exhibit vibration conditions without utilizing the ... Read More »
This preliminary informational bulletin provides service personnel with characteristics of wide low aspect ratio tires for customer concerns that vehicle pulls left or right, wanders, follows depressions in road surface, tramlining. Read More »
This informational bulletin communicates comprehensive instructions to GM Dealers and authorized GM Accessory Distributor/Installers as to the proper methods for mounting, balancing, and installing accessory wheels and tires. Read More »
This informational bulletin adds the 2015 model year to information on cold weather tire cracking of high performance summer-only tires, when used under the recommended operating temperatures. Read More »
This informational bulletin provides technicians with ways to decrease the tire slipping on the rim and reduce to possible chances of the customers concerns over tire vibration are repair. Read More »
This informational bulletin provides technicians with ways to decrease the tire slipping on the rim and reduce to possible chances of the customers concerns over tire vibration are repair. Read More »
This informational bulletin provides technicians with ways to decrease the tire slipping on the rim and reduce to possible chances of the customers concerns over tire vibration are repair. Read More »
This informational bulletin provides explanation on using the tire sealent in the GM kit as a temporary fix only untill the tire can be properly repaired under the new tire warranty. Read More »
This informational bulletin provides the technician with information on tire radial force variations and how to balance a tire using the balancer. Read More »
This informational bulletin provides technicians with ways to decrease the tire slipping on the rim and reduce to possible chances of the customers concerns over tire vibration are repair. Read More »
This technical bulletin provides a procedure on cleaning a leaking rim, to correct a customers concern of having a slow tire leak and low tire psi message on. Read More »
This informational bulletin provides additional information to the technician on how to check for Tire Radial Force Variations and the difference between balancing a flange and flangeless rim. Read More »
This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Read More »
This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Read More »
This informational bulletin provides additional information to the technician on how to check for Tire Radial Force Variations and the difference between balancing a flange and flangeless rim. Read More »
This service bulletin provides information for accurate tire pressures that ensure the safe handling and appropriate ride characteristics of GM cars and trucks. Read More »
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »
This preliminary informational bulletin provides information that the tire pressure monitor (TPM) sensors must always be re-learned when accessory wheels are installed on the vehicle. Read More »
This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed. Read More »
This service bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining. Read More »
This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns. Read More »
This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement. Read More »
This service bulletin provides information to address a tire chatter noise during low speed tight turn conditions (i.e. parking lot, driveway, etc.) primarily during cooler ambient temperatures. Read More »
This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel). Read More »
This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement. Read More »
This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel). Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer. Read More »
This service bulletin provides information for accurate tire pressures that ensure the safe handling and appropriate ride characteristics of GM cars and trucks. Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer. Read More »
This informational bulletin provides information to address a chatter noise during low speed tight turn conditions (i.e. parking lot, driveway, etc.) primarily during cooler ambient temperatures. Read More »
This bulletin updates the position of General Motors on refinishing fully color painted aluminum wheels with base paint. GM has established a new process for the way that refinishing under GM Warranty will be handled (U.S. ONLY). Read More »
This service bulletin provides information for dealers/technicians on Tire/Wheel Characteristics (Vibration, Balance, Shake, Flat Spotting) of GM Original Equipment Tires. Read More »
This Preliminary Information communication provides information to the technician to not remove the torque converter bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with ... Read More »
This informational bulletin provides retail, wholesale and fleet personnel with General Motors recommendations for customer concerns related to wheel alignment. Read More »
This technical bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel ... Read More »
This informational bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining. Read More »
Clicking Noise from Front Wheels While Turning at Slow Speeds Condition Some customers may comment on a clicking noise emanating from the front wheels location. Read More »
This informational bulletin provides information on Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum Wheels. Read More »
This Preliminary Information communication advises the technician rear wheel drive manual transmissions have been placed on restriction. Dealer will need to contact General Motors Product Quality Center for further assistance. Read More »
This Preliminary Information communication advises the technician rear wheel drive manual transmissions have been placed on restriction. Dealer will need to contact General Motors Product Quality Center for further assistance. Read More »
This preliminary bulletin provides a procedure to clean the back side of the rims and rotors and to correct the customers concern of wheel clicking. Read More »
This informational bulletin provides information on tire cold weather cracking and the proper techniques on taking care of the tires and proper use. Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO CLEAN MATING SURFACE OF WHEELS AND ROTORS TO CORRECT A CUSTOMER CONCERN ON A CLICKING NOISE EMANATING FROM EITHER THE FRONT OR REAR WHEELS LOCATION DUE TO INTERACTION BETWEEN THE WHEEL ... Read More »
This informational bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening or re-machining. Read More »
This informational bulletin provides information on chemical staining, pitting, and corrosion on wheels and the proper cleaners to use to fix the conditions due to multiple causes. Read More »
This informational bulletin provides information on the proper mounting paste to apply to tires when mounting and balancing them to prevent conditions like Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip ... Read More »
This informational bulletin provides information and tips on how to set the corvettes wheel alighnment for track and competitive driving conditions Read More »
This preliminary informational bulletin provides repair information for cleaning mating surface of wheels and rotors to correct a customer concern of clicking noise from front and/or rear wheels. Read More »
This warranty administration bulletin provides retail, wholesale and fleet personnel with General Motors recommendations for customer concerns related to wheel alignment. Read More »
This preliminary informational bulletin provides repair information for cleaning mating surface of wheels and rotors to correct a customer concern of clicking noise from front and/or rear wheels. Read More »
This informational bulletin communicates comprehensive instructions to GM Dealers and authorized GM Accessory Distributor/Installers as to the proper methods for mounting, balancing, and installing accessory wheels and tires. Read More »
This informational bulletin provides information on chemical staining, pitting, corrosion and/or spotted appearance of chromed aluminum wheels, along with warranty information regarding these conditions. Read More »
This preliminary information bulletin provides information on how to remove stainless steel wheel nut caps with the matching depth of socket used on the wheel nut. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have wheels that are collecting an excessive amount of brake dust. Read More »
Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Read More »
Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Read More »
This informational bulletin provides additional information to the technician on how to check for Tire Radial Force Variations and the difference between balancing a flange and flangeless rim. Read More »
This informational bulletin provides technicians with ways to decrease the tire slipping on the rim and reduce to possible chances of the customers concerns over tire vibration are repair. Read More »
This informational bulletin provides technicians with ways to decrease the tire slipping on the rim and reduce to possible chances of the customers concerns over tire vibration are repair. Read More »
This informational bulletin provides technicians with ways to decrease the tire slipping on the rim and reduce to possible chances of the customers concerns over tire vibration are repair. Read More »
This informational bulletin provides technicians with ways to decrease the tire slipping on the rim and reduce to possible chances of the customers concerns over tire vibration are repair. Read More »
This technical bulletin provides a procedure on cleaning a leaking rim, to correct a customers concern of having a slow tire leak and low tire psi message on. Read More »
This informational bulletin provides information for information on passenger presence sensing system (PPS or PSS) concerns with custom upholstery, accessory seat heaters or other comfort enhancing devices. Read More »
This technical bulletin provides a procedure for replacing the emblem on the seat cover as opposed to replacing the whole seat cover itself. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have the base power seat, Memory Recall, and Easy Exit Recall functions may seem erratic or seem to operate intermittently. Read More »
This engineering informational bulletin is ending the need for information from the field on vehicles that have the concern of Intermittent or Erratic Power Seat, Memory Seat Recall or Easy Exit Seat Recall Functions. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE THE BASE POWER SEAT, MEMORY RECALL, AND EASY EXIT RECALL FUNCTIONS MAY SEEM ERRATIC OR SEEM TO OPERATE INTERMITTENTLY. Read More »
This informational bulletin provides Information on Passenger Presence Sensing System (PPS or PSS) Concerns with Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices Read More »
In situations where your vehicle side doors will not open from INSIDE the vehicle due to low or no battery voltage, such as a discharged or disconnected battery, or if the vehicle is entered without the key fob or the fob is not working, ... Read More »
This informational bulletin provides dealership personnel with information on interior cleaning of Instrument Panel (IP), hard or plastic surfaces, seats, carpet, leather, vinyl, fabric cleaner, stain remover, restorer and product ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have the base power seat, Memory Recall, and Easy Exit Recall functions may seem erratic or seem to operate intermittently. Read More »
This informational bulletin provides Information on Passenger Presence Sensing System (PPS or PSS) Concerns with Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices Read More »
This informational bulletin provides information on Some vehicles may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. Read More »
This information bulletin explains the use of drilling high strength steel in a collision repair and the GM recommended CryoCobalt Drill bit. Read More »
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have rattle or ticking noise that is louder inside the vehicle than outside. Read More »
This technical bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Harsh Shift 1/2 and 2/3 and Sputter Applying Throttle Between 0 and 30%, Rough idle. Read More »
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a no crank concern. Read More »
This technical bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL on. Read More »
Service Update for Inventory Vehicles Only Drive Audit for Transmission Noise and Loss of Reverse Vehicle Limited to 3rd and 4th Forward Gear Read More »
This Preliminary Information communication provides information to the technician about the rear view camera options on the vehicles equipped with rear view camera. Read More »
This technical bulletin provides a procedure to reprogram the radio to correct a customer concern of radio Inoperative, blue Screen, AM clipping noise, HD on/off status not retained in stations, time lag on transitions, no audio with ... Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed. Read More »
This service bulletin provides service /diagnostic information to aid with a Transmission Harsh 1-2 Shift Upon First Start Up/Shift of the Day Under Light Throttle. Read More »
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. Read More »
This service bulletin provides information on Corvette and Camaro Exhaust Tone During Wide Open Throttle while in Sport or Track Modes and that this is considered a normal characteristic. Read More »
This service bulletin provides repair information to correct a customer concern of OnStar Inoperative after Importing Vehicle from Canada to the United States. Read More »
This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA). Read More »
This service bulletin provides repair information to correct a customer concern of OnStar Inoperative after Importing Vehicle from Canada to the United States. Read More »
This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats warped or misshapen. Read More »
This service bulletin provides repair information to correct a customer concern of a chirp, squeak noise heard coming from the rear of vehicle. Read More »
This Warranty Administration bulletin provides policy information on Causal Part requirements for transactions submitted to GM for payment. Read More »
This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Read More »
This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats warped or misshapen. Read More »
This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear. Read More »
This service bulletin provides information on GM Canada New Vehicle Tire Warranty Program for Original Equipment (OE) Tires and PDI installed Limited Production Option (LPO) Tires. Read More »
This bulletin updates the position of General Motors on refinishing fully color painted aluminum wheels with base paint. GM has established a new process for the way that refinishing under GM Warranty will be handled (U.S. ONLY). Read More »
This preliminary informational bulletin provides information on Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center. Read More »
The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them. Read More »
This service bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area. Read More »
This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits. Technicians should refer to Service Information for information regarding most accessories. Read More »
This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines. Read More »
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA). Read More »
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA). Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Read More »
This service bulletin provides information regarding Witness Marks from Panel Adjustments Made During Manufacturing and that it is considered a normal condition. Read More »
This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement. Read More »
This warranty administration bulletin provides policy information, proper labor operation selection and causal part identification for warranty transactions (U.S. Only). Read More »
This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only). Read More »
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. Read More »
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA). Read More »
This Preliminary information communicates the use of Winter grade fuel during the warm months of 2020 and the potential rivability issues that it can cause. Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer. Read More »
This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats warped or misshapen. Read More »
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA). Read More »
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA). Read More »
This technical bulletin provides a procedure to correct a condition of Brake Squeal or Squeak Noise Intermittently on Initial Brake Applies. Read More »
Special Coverage. Certain vehicles may have a condition where the vehicle may overheat and enter a reduced power mode when driven on a track at sustained high speeds in high ambient temperatures. Read More »
This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated. Read More »
Special Coverage. Certain vehicles may have a condition where the vehicle may overheat and enter a reduced power mode when driven on a track at sustained high speeds in high ambient temperatures. Read More »
This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated. Read More »
The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them. Read More »
This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the information found in the service manual. Read More »
This warranty administration bulletin provides information on Warranty Administration - Customer Concern Not Duplicated (CCND) Labor Operation Numbers. Read More »
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only). Read More »
This informational bulletin provides information on Corvette and Camaro Exhaust Tone During Wide Open Throttle while in Sport or Track Modes and that this is considered a normal characteristic. Read More »
This Warranty Administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information. Read More »
This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller rockers to inspect them. Read More »
This technical bulletin provides a procedure to replace the left side differential carrier cover and seal to correct a condition of Warble Noise from the Rear of the Vehicle. Read More »
This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the information found in the service manual. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This warranty administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information. Read More »
This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability. Read More »
This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability. Read More »
This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability. Read More »
This technical bulletin provides a service procedure to correct conditions of Manual Transmission Stalling, Clutch Chatter or Hard Shifting into 1st Gear/Reverse and Automatic Transmission Vibration on Launch or Engine Noise. Read More »
This informational bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only). Read More »
This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area. Read More »
This informational bulletin explains Unscheduled Supplemental Services (including Flushing Services and Additives) and the Proper use of GM Simplified Maintenance Schedules. Read More »
This Bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement. Read More »
This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits. Technicians should refer to Service Information for information regarding most accessories. Read More »
This technical bulletin provides a service procedure to correct conditions of Manual Transmission Stalling, Clutch Chatter or Hard Shifting into 1st Gear/Reverse and Automatic Transmission Vibration on Launch or Engine Noise. Read More »
This informational bulletin provides information on GM Accessories ? Dealer-Installed, Repaired or Replaced During Warranty Coverage Period. Read More »
This informational bulletin provides retail, wholesale and fleet personnel with General Motors recommendations for customer concerns related to wheel alignment. Read More »
This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer repurchase from the customer, GM depends on the dealership to host and administer the repurchase closing and intake of the ... Read More »
This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier ... Read More »
This preliminary information bulletin provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961). Read More »
This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC). Read More »
This technical bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel ... Read More »
This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the information found in the service manual. Read More »
This warranty administration bulletin provides policy information, proper labor operation selection and causal part identification for warranty transactions (U.S. Only). Read More »
This bulleting provides Wiring, Terminal and Connector Repair Information including how to determine the Service Part Number in eSI and how to locate the part(s) in the EPC. Read More »
This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits. Technicians should refer to Service Information for information regarding most accessories. Read More »
The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them. Read More »
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations. Read More »
This informational bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts. Read More »
This informational bulletin provides information to the tech to replace only the prop shaft and not the complete driveline support assembly (DSA) if a rattle noise is confirmed to be coming from the prop shaft. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This warranty administration bulletin provide policy information to cover GM's policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada. Read More »
This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller rockers to inspect them. Read More »
This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC). Read More »
This technical bulletin provides a procedure to reposition the coolant surge hose clamp away from the hood blanket to avoid hood closing interference. Read More »
This informational bulletin provides diagnostic/inspection information for the air box and air filter seal to correct a MIL and DTCs P0420 and P0430 setting. Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This technical bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL on. Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer. Read More »
This informational bulletin provides a listing of the parts availability for coax repair procedures and what is needed to complete some repairs. Read More »
This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC). Read More »
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formally known as a Product Allegation Resolution (PAR) claim. Read More »
This technical bulletin provides a procedure for replacing the emblem on the seat cover as opposed to replacing the whole seat cover itself. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This Preliminary Information communication provides information to the technician on how to tell the difference between the integrated center stack, the radio, the human machine interface, and the vehicle communication interface module. Read More »
This Preliminary Information communication provides information to the technician about connectivity concerns when connecting an Apple device via USB cord. Read More »
This Preliminary information communicates to the dealer an issue where the vehicle's engine may crank over unprompted and not start afterward. Read More »
This informational bulletin provides information for use on a Product Assistance Claim (PAC), which is formally known as a Product Allegation Resolution (PAR) claim. Read More »
This informational bulletin provides information to dealership personnel on policies regarding a Product Assistance Claim (PAC) within the Courtesy Transportation Assistance Program. Read More »
This technical bulletin provides information on Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the transport mode message on and off. Read More »
This informational bulletin provides the information on what may occur if the charge air cooler is not filled and drained properly after a service or replacement has been completed. Read More »
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. Read More »
This informational bulletin provides information on dealer responsibility for cargo carrying capacity labeling and the part numbers for the labels. Read More »
This technical bulletin provides a procedure to clear the codes and re-evaluate the XM radio channels to correct a condition of audio muting when listening to some Sirius XM channels but if they change channels they will find others that ... Read More »
This informational bulletin provides information to dealership personnel on automatic transmission shift and engine drivability concerns and/or MIL ON due to aftermarket oil bath air filter use. Read More »
This informational bulletin provides a listing of the parts availability for coax repair procedures and what is needed to complete some repairs. Read More »
This warranty administration bulletin provides dealership personnel with policy and procedure requirements for essential tools that include consumable parts (U.S. Only). Read More »
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have rattle or ticking noise that is louder inside the vehicle than outside. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Read More »
This informational bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered seepage. Read More »
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. Read More »
This informational bulletin advises the possible issues that may occur using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
This warranty administration bulletin provide policy information on warranty and policy exchange program for electronic products for U.S. and Canada dealers only. Read More »
This informational bulletin provides warranty policy information on revised wiring repair labor operations and required additional information. Read More »
This informational bulletin provides warranty policy information on revised wiring repair labor operations and required additional information. Read More »
This Preliminary information communicatesIn ambient temperatures 100F (37.7 C)degrees or higher, DTCs P2635 and/or P018B may set.The vehicle may also exhibit a hesitation or stalling condition. Read More »
15086A - Customer Satisfaction Program. On certain passenger cars and light duty trucks, equipped with Gen 10 OnStar?, the embedded phone flash memory chip may become corrupted, causing the OnStar? system to become inoperative. Read More »
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have oil dripping out of the air filter box. Read More »
This informational bulletin advises of a new fuel injection kit used for decarbonizing the intake valves, and explains how toptier fuels should be used to reduce carbon build up. Read More »
This Preliminary Information communication provides information to the technician about vehicles that maynot move after being parked for extended period of time. Read More »
This Preliminary Information communication advises the technician rear wheel drive manual transmissions have been placed on restriction. Dealer will need to contact General Motors Product Quality Center for further assistance. Read More »
This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Read More »
This Preliminary Information communication advises the technician rear wheel drive manual transmissions have been placed on restriction. Dealer will need to contact General Motors Product Quality Center for further assistance. Read More »
This Preliminary Information communication provides information to the technician the some vehicles may have surge misfire feeling sensation during highway steady state driving in manual mode or automatic, typically in 6th, 7th, 8th gear ... Read More »
This engineering information bulletin is ending the need for information on vehicles with the condition of Vehicle Crank with No Start or Stalling with DTC P0011 and/or P00C6 Set. Read More »
This bulletin contains information for the new tires that the vehicle is equipped with and that they are covered by General Motors against defects in material or workmanship under the New Vehicle Warranty (Base Warranty Coverage). Read More »
This warranty administration bulletin provides information on The tires supplied with a new vehicle are covered by General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty. Read More »
This technical bulletin provides repair information to correct a customer concern of a creak or snap noise from the front of the removable roof lift off panel while driving. Read More »
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION FOR IGNITION KEY, FOB, KEY TAGS AND KEY RINGS CONFIGURATION FOR VARIOUS VEHICLES AND APPLYING A QR CODE STICKER OR BARCODE STICKER TO THE FOB. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATES THE HARD-TO-FIND PAINT CODE FOR THE REAR HATCH AREA OF THE VEHICLE. THE TECHNICIAN IS TO USE PAINT CODE WA167A TO PAINT THESE AREAS. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE THE LAP TIMER MISSING FROM DRIVER INFORMATION CENTER. Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REMOVE THE TRANSPORT MODE ON MESSAGE DISPLAYED IN THE DIC DUE TO VEHICLES SHIPPED OVER LONG DISTANCES OUTSIDE THE U.S. AND CANADA. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES THE TECHNICIAN WITH A DIAGNOSTIC AID FOR IDENTIFYING INFOTAINMENT COMPONENTS ON THE VEHICLES TO ENSURE THAT THE CORRECT COMPONENT IS ORDERED OR REPLACED AND THE CORRECT LABOR CODE IS ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT A NOISE OR A VIBRATION IN THE VEHICLE THAT SEEMS TO BE ABNORMAL MAY NOT HAVE BEEN THERE WHEN THE VEHICLE WAS PURCHASED. Read More »
This warranty administration bulletin provides information on GM?s policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada. Read More »
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON HOW TO INSPECT THE UPPER VALVE BODY TO DETERMINE THE CORRECT RPO USAGE TO CORRECT A CONCERN THAT AFTER INSTALLATION OF A REPLACEMENT UPPER VALVE BODY, THE TRANSMISSION MAY HAVE NO ... Read More »
THIS PRELIMINARY INFORMATIONAL BULLETIN PROVIDES INFORMATION THAT MAY BE HELPFUL WHEN ADDRESSING UNDERBODY COMPONENT CORROSION WITH CUSTOMERS. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON DIAGNOSING THE CONCERN. VEHICLE'S SUNROOF OPERATION INTERMITTENT, BIND, NOISE, AUTO-REVERSE, AND/OR WATER LEAKS. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION IS TO CONTACT GM TECHNICAL ASSISTANCE CENTER TO REPORT THE CONCERN AND OBTAIN A CASE NUMBER. THE CUSTOMER IS UNABLE TO SELECT RADIO PRESETS FROM THE USB OR SD CARD AS THEY ARE GREYED OUT. Read More »
This informational bulletin provides information on Original Equipment Batteries Part Number and ACDelco Replacement Battery Approved Warranty Part Numbers Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT FINDING NEEDLE BEARINGS DURING AN OIL CHANGE. TECHNICIAN WILL GAIN ACCESS TO THE ROLLER ROCKERS TO INSPECT THEM. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THAT AFTER REPLACING THE INSTRUMENT PANEL CLUSTER THE EXCHANGE CENTER IS UNABLE TO PROGRAM THE ACTUAL MILEAGE ON THE ODOMETER OR THE ACTUAL MILEAGE IS ... Read More »
This Preliminary Information communication provides information to the technician about customers may inquire about a section in their owner's manual that addresses the use of high temperature brake fluid that should be used in their car ... Read More »
Brake Squeal or Squeak Noise Intermittently on Initial Brake Applies Condition/Concern Some customers may comment on a squeal or squeak noise from the front brakes. Read More »
In situations where your vehicle side doors will not open from INSIDE the vehicle due to low or no battery voltage, such as a discharged or disconnected battery, or if the vehicle is entered without the key fob or the fob is not working, ... Read More »
This informational bulletin provides information for technicians on the reuse of fasteners and the proper reading of torque specifications. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts are being performed on customer?s vehicles that exhibit vibration conditions without utilizing the ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a no start or multiple messages on the Driver Information Center during cold weather. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have the base power seat, Memory Recall, and Easy Exit Recall functions may seem erratic or seem to operate intermittently. Read More »
This informational bulletin provides technicians with information to assist in identifying operating characteristics of manual transmissions that repair attempts will not change. Read More »
This informational bulletin provides dealership personnel with information on new vehicle Pre-Delivery Inspection (PDI) process and to encourage delivering quality vehicles and generating higher CSi scores. Read More »
This informational bulletin provides dealership personnel with information on interior cleaning of Instrument Panel (IP), hard or plastic surfaces, seats, carpet, leather, vinyl, fabric cleaner, stain remover, restorer and product ... Read More »
This informational bulletin provides information to dealership personnel regarding warranty codes generated by EL-50313 Midtronics GR8 Battery Tester/Charger required for claim processing on labor operations 4041510, 4041520 and 250 ... Read More »
GENERAL MOTORS: TSB CONTAINS AN OWNER'S NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. ON CERTAIN TRUCKS AND VEHICLES, THE ONSTAR SYSTEM IS INOPERATIVE DUE TO EMBEDDED PHONE FLASH MEMORY CHIP AND VEHICLE COMMUNICATION ... Read More »
This preliminary informational bulletin provides a recommendation to technicians to NOT use power tools during installation of stage one and two rear wicker bills on spoiler, to help eliminate possibilty of part damage. Read More »
This Preliminary Information communication advises the technician to inspect for a missing crankshaft pilot bearing if Service Information indicates the crank shaft is within specification. Read More »
This preliminary informational bulletin provides repair information to correct a customer concern of Iitermittently key will not rotate in door or ignition lock cylinder. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may OnStar inoperative and Navigation/GPS/Compass issues. Technician may find Diagnostic Trouble Codes B101D sym 3C and or F0. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have the OnStar wireless fidelity inoperative. Read More »
This Preliminary Information communication provides information to the technician about vehicles with various Heater-Vent-Air Conditioning concerns. Read More »
This warranty administration bulletin provides retail and wholesale service personnel with the policies and the warranty claims submission procedures that support Labor Operation 0600014 ? Suspected Tampering or Vehicle Modifications. Read More »
This informational bulletin provides dealership personnel information on unscheduled supplemental services (including flushing services and additives) and proper use of GM simplified maintenance schedules (Canada only). Read More »
This informational bulletin provides information on the PQC assembly replacement process - for dealers required to contact PQC prior to replacing an assembly (U.S. and Canada only). Read More »
This Preliminary Information communication provides information to the technician about the Media Oriented Systems Transport Bus Diagnostic Tool Kit (EL-51578) has been released to help diagnose any of the Media Oriented Systems Transport ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT THE E92 ECM RESTRICTION PART NUMBER 12662034 WILL BE PLACED ON RESTRICTION THROUGH THE GENERAL MOTORS PRODUCT QUALITY CENTER. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE THE ACTIVE REV MATCHING FEATURE TO BE INOPERATIVE. Read More »
This informational bulletin provides information to correct a dealer concern of what they perceive to be paint staining when the protective shipping film is removed from certain vehicles. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS NEED TO DIAGNOSE AND REPAIR VEHICLES THAT MAY HAVE STALLING SHUDDER AND/OR HARD SHIFTING INTO 1ST GEAR OR REVERSE VIBRATION ON LAUNCH (WITH ... Read More »
This preliminary informational bulletin provides information that accessory remote start does not work with OnStar RemoteLink? phone application. Read More »
This Preliminary Information communication provides information to the technician about customers that would like to install Regular Production Option Code NPP (Performance Exhaust System) to a Stingray that was produced without the option. Read More »
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have oil dripping out of the air filter box. Read More »
This Preliminary Information communication provides information to the technician about two rings and a coil of safety wire included in the loose items bag. These are the front brake rotor cooling rings. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have that the USB port is inoperative or they receive a message of ?No other media available? when pressing the Media button. Read More »
This Preliminary Information communication provides information to the technician on the step to diagnose and repair vehicles that have A Diagnostic Trouble Code P06DD. Read More »
This informational bulletin provides the technician on what to do if the customer has a navagation concern and submit a feedback form to the GM navigation disc center website. Read More »
This preliminary bulletin provides a procedure to replace the windshild to correct the customers concern of a loose mirrior and/or bracket fell off. Read More »
This informational bulletin provides technicians with ways to decrease the tire slipping on the rim and reduce to possible chances of the customers concerns over tire vibration are repair. Read More »
This Technical bulletin provides a procedure to request a hard mute from Onstar when navigation is annoucing directions and to correct the customers concern of the radio being loud during navigation. Read More »
This Technical bulletin provides a procedure to request a hard mute from Onstar when navigation is annoucing directions and to correct the customers concern of the radio being loud during navigation. Read More »
This information for Warranty administration - Changes the Service Policy and Procedures Section 1.6.2.11 and list the requirements for the dealer to comply. Read More »
This information for Warranty administration - Changes the Service Policy and Procedures Section 1.6.2.11 and list the requirements for the dealer to comply. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may not receiving all channels on the XM band. Read More »
This informational bulletin provides the technician with information on tire radial force variations and how to balance a tire using the balancer. Read More »
This informational bulletin explains if the fuse is open when the customer plugs in the trailer, that it may be the cause if diagnostics finds no problems to that point. Read More »
This informational bulletin helps the technician quick reference repairs to bulletins as opposed to replacing parts that may be un necessary. Read More »
This preliminary bulletin states to add the DTC symptom byte to the documentation to help aid engineering pinpoint concerns when trying to locate a root cause. Read More »
This informational bulletin provides information to the technician on what parts of an engine or transmission will require the PQC to be notified. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. Read More »
This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats. Technician can check Service Information for some accessories. Read More »
This informational bulletin helps the technician quick reference repairs to bulletins as opposed to replacing parts that may be un necessary. Read More »
Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Read More »
Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Read More »
This informational bulletin provides information for the dealer technician to gather as much information to help aid Engineers by completely filling out requested reports. Read More »
This informational bulletin was created to inform that any accessories that are install from the GM factory will be covered under the standard vehicle warranty and dealer installed accessories will be cover for a full year (12months). Read More »
This service bulletin provides policy information on warranty administration guidelines for multiple repairs with independent causes (GM Canada Dealers Only). Read More »
This warranty administration bulletin explains to the technician that when using wiring repair labor operations, additional information may be needed when submitting Global Warranty transactions when doing wiring repairs. Read More »
This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits. Technicians should refer to Service Information for information regarding most accessories. Read More »
This Preliminary Information communication provides information to the technician about vehicles that do not recognize the SD card when it is used in the Performance Data Recorder (PDR) system. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This Preliminary Information communication provides information to the technician about the Media Oriented Systems Transport Bus Diagnostic Tool Kit (EL-51578) has been released to help diagnose any of the Media Oriented Systems Transport ... Read More »
This Preliminary Information communication provides information to the technician on how to tell the difference between the integrated center stack, the radio, the human machine interface, and the vehicle communication interface module. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Read More »
This Preliminary Information communication advises the technician how to determine if the vehicle is equipped with wireless fidelity. Technician should check the Regular Production Option Code list for (VV4). Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a clock that is slow to update while driving when the clock auto set feature enabled. Read More »
This informational bulletin provides information for the technicians on multi-media infotainment tester (MIT), does not function properly when diagnosing infotainment complaints, which may lead to mis-diagnosis. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them. Read More »
This Preliminary Information communication provides information to the technician about customers that may complain of various concerns when using Bluetooth components. Read More »
44180 02 - Customer Satisfaction. Certain vehicles may have key codes which were inappropriately handled by a third party which could increase the risk of vehicle theft. Read More »
This Preliminary Information communication advises the technician how determine if the vehicle is equipped with wireless fidelity. Technician should check the Regular Production Option Code list for (VV4). Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO INSPECT THE AIR BOX AND AIR FILTER SEAL AND REPLACE IF NECESSARY TO CORRECT A CUSTOMER CONCERN THAT THE MALFUNCTION INDICATOR LIGHT (MIL) IS ILLUMINATED DUE TO EXCESSIVE SAND AND/OR DEBRIS ... Read More »
This technical bulletin provides a procedure to reprogram the radio to correct a customer concern of radio Inoperative, blue Screen, AM clipping noise, HD on/off status not retained in stations, time lag on transitions, no audio with ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN TO DIAGNOSE THE CONCERN AND THE STEPS TO REPAIR THE CONCERN. THE VEHICLE'S XM TRAVEL LINK MAY BE INOPERTIVE. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION FOR THE DEALER TO PLEASE COMMUNICATE TO THE CUSTOMER THIS CONDITION IS A NORMAL OPERATING CHARACTERISTIC OF THEIR VEHICLE. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION IS TO CONTACT GM TECHNICAL ASSISTANCE CENTER TO REPORT THE CONCERN AND OBTAIN A CASE NUMBER. THE CUSTOMER IS UNABLE TO SELECT RADIO PRESETS FROM THE USB OR SD CARD AS THEY ARE GREYED OUT. Read More »
This Preliminary Information communication advises the technician after the OnStar Canada upgrade the OnStar Vehicle Diagnostic Email report is inoperative. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Read More »
This informational bulletin provides Information Regarding Servicing Components Located Near SIR Components and how to properly disable the SIR system for repairs at or near Read More »
This informational bulletin provides information on Part Restriction and Ordering Process Information for OnStar Vehicle Communication Interface Modules (VCIM) (GMNA Only) Read More »
This technical bulletin provides a procedure to update your apple product to the latest software version to correct a condition of infotainment system will not return to media after bluetooth call ... Read More »
This informational bulletin provides information regarding Part Restriction and Ordering Process Information for OnStar Vehicle Communication Interface Modules Read More »
This informational bulletin provides information to dealership personnel regarding original equipment battery part numbers and AC Delco replacement battery approved warranty part numbers. Read More »
This Preliminary Information communication provides information to the technician with tips on the Text Messaging feature that is available on some newer General Motors infotainment systems. Read More »
This preliminary informational bulletin adds the 2014 - 2016 model years to cleaning information to correct a customer concern of seeing a white film/residue on the IP pad and/or door trim panels. Read More »
This Preliminary Information communication provides information to the technician about the Media Oriented Systems Transport Bus Diagnostic Tool Kit (EL-51578) has been released to help diagnose any of the Media Oriented Systems Transport ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. Read More »
This Preliminary Information communication provides information to the technician of an engine power reduced message on the driver information center after performing the Canada Onstar? 4G upgrade. Read More »
This Preliminary Information communication provides information to the technician about the Media Oriented Systems Transport Bus Diagnostic Tool Kit (EL-51578) has been released to help diagnose any of the Media Oriented Systems Transport ... Read More »
This Preliminary Information communication provides information to the technician about connectivity concerns when connecting an Apple device via USB cord. Read More »
This informational bulletin adds the 2014 and 2015 model years to information of a language change for OnStar System (U.S. and Canada only). Read More »
The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them. Read More »
This informational bulletin provides information on the Product Quality Center (PQC) assembly replacement process for Service Agents not required to contact PQC prior to assembly replacement. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have the OnStar wireless fidelity inoperative. Read More »
This preliminary informational bulletin provides radio programming information to correct customer concerns about no XM audio or time shift, radio lock-up, slow response, vertical line between clock and temperature, poor FM reception ... Read More »
This preliminary informational bulletin implements a correction for dealers to reprogram the Perfomance Data Recorder (PDR) to help ensure the PDR, and its use in Valet Mode, are consistant with legal requirements that pertain to audio ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that are travelling from Canada to the United States. While in the United States they are unable to receive Turn-by-Turn directions. Read More »
This preliminary informational bulletin provides repair information to correct customer concerns about blank display, NAV screen audio content is unavailable via speech recognition, display screen is stuck on incoming call view after ... Read More »
This preliminary informational bulletin adds the 2015 model year to repair information on correcting a customer concern of poor, limited, reduced Remote Keyless Entry (RKE) or Remote Vehicle Start (RVS) range. Read More »
This preliminary informational bulletin provides radio programming information to correct customer concerns about no XM audio or time shift, radio lock-up, slow response, vertical line between clock and temperature, poor FM reception ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THE STEPS NEEDED TO DIAGNOSE AND REPAIR THE VEHICLES THAT MAY HAVE UNWANTED OR PHANTOM PHONE CALLS. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
This Preliminary Information communication provides information to the technician the steps needed to diagnose and repair the vehicles that may have unwanted or phantom phone calls. Read More »
This preliminary informational bulletin provides repair information to correct customer concerns about blank display, NAV screen audio content is unavailable via speech recognition, display screen is stuck on incoming call view after ... Read More »
This Preliminary Information communication provides information to the technician about when listening to an iPod that the first song will still be displayed when the next song in the list is playing. Read More »
Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow Procedure as Outlined Below) Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have "Service Theft System" message on the Driver Information Center. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the navigation voice feedback is choppy, distorted, or garbled. Read More »
This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, display, and Media Disc Players are placed on restriction through the General ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that the voice recognition is inoperative. Technician will need to toggle through all languages then back to the desired language. Read More »
Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow Procedure as Outlined Below) Read More »
This Preliminary Information communication provides information to the technician about vehicles that the voice recognition is inoperative. Technician will need to toggle through all languages then back to the desired language. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a message on the radio "maximum number of phones are currently paired to the vehicle". Read More »
This Preliminary Information communication advises the technician that the Engine Control Module part numbers 12656993 and 12662034 are on part restriction through the General Motors Product Quality Center. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a blank display. Technician may find a Diagnostic Trouble Code U150F set. Read More »
Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow Procedure as Outlined Below) Read More »
this informational bulletin provides Information on Using MyBuick, MyCadillac, MyChevrolet, and MyGMC Phone Applications to Control GM Accessory Remote Start Kits. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have "Service Theft System" message on the Driver Information Center. Read More »
This technical bulletin provides repair information to correct a customer concern of Audio Muting When Listening to Some SiriusXM Channels Due to Interference in Some Geographic Locations. Read More »
This technical bulletin provides repair information to correct a customer concern of Audio Muting When Listening to Some SiriusXM Channels Due to Interference in Some Geographic Locations. Read More »
This technical bulletin provides repair information to correct a customer concern of hearing a door rattle noise from outside of vehicle during high radio volume or high bass levels. Read More »
This Preliminary Information communication provides information to the technician on how to tell the difference between the integrated center stack, the radio, the human machine interface, and the vehicle communication interface module. Read More »
This technical bulletin provides a procedure to clear the codes and re-evaluate the XM radio channels to correct a condition of audio muting when listening to some Sirius XM channels but if they change channels they will find others that ... Read More »
This preliminary information bulletin provides a procedure on how to check for the customer concern of a blank radio with/without audio, by checking the the wiring harness, ECU and reprograming the HMI software update, if the wiring or ... Read More »
This Preliminary Information communication provides information to the technician about the rear view camera options on the vehicles equipped with rear view camera. Read More »
This Preliminary Information communication provides information to the technician about vehicle that has no XM audio on certain channels but XM channel info is displayed. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a message on the radio ?maximum number of phones are currently paired to the vehicle?. Read More »
This Technical Bulletin provides a fix to reprogram the radio for vehicles that may experience any of the following conditions: DTC U0184 Set, Radio Inoperative, Blue Screen, AM Clipping Noise, HD On/Off Status Not Retained in Stations, ... Read More »
This technical bulletin provides a procedure to clear the codes and re-evaluate the XM radio channels to correct a condition of audio muting when listening to some Sirius XM channels but if they change channels they will find others that ... Read More »
This preliminary informational bulletin adds the 2015 - 2016 model years to a procedure to correct a customer concern of door rattle noise from outside of vehicle during high radio volume or high bass levels. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT THE RADIO WILL NOT SAVE XM FAVORITES. TECHNICIAN WILL NEED TO REPLACE THE RADIO TO ADDRESS THE CONCERN. Read More »
This technical bulletin provides a procedure to reprogram the radio to correct a customer concern of radio Inoperative, blue Screen, AM clipping noise, HD on/off status not retained in stations, time lag on transitions, no audio with ... Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPROGRAM THE RADIO CONTROLLER DUE TO A SOFTWARE CONCERN CAUSING THE HVAC AND RADIO CONTROLS TO GO INOPERATIVE. Read More »
This technical bulletin provides a procedure to reprogram the radio to correct a customer concern of radio Inoperative, blue Screen, AM clipping noise, HD on/off status not retained in stations, time lag on transitions, no audio with ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF THE RADIO IS INOPERTIVE. NEW SOFTWARE HAS BEEN RELEASED TO CORRECT THIS CONCERN. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF A DEAD BATTERY AFTER LEAVING THE VEHICLE DURING A BLUETOOTH CALL. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER FOR FURTHER INSTRUCTIONS. THE CONCERN IS THE RADIO MAY BE UNABLE TO SAVE XM FAVORITE STATIONS. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN. THE VEHICLE'S XM RADIO ONLY HAS XM PREVEIW CHANNELS. Read More »
"THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO CONTACT ONSTAR FOR HARD MUTE REQUEST TO CORRECT A CUSTOMER CONCERN WHEN THE RADIO IS ON, IT DOES NOT MUTE ENOUGH WHEN THE ONSTAR? TURN-BY-TURN NAVIGATION DIRECTIONS ARE ANNOUNCED DUE TO ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION FOR THE DEALER TO PLEASE COMMUNICATE TO THE CUSTOMER THIS CONDITION IS A NORMAL OPERATING CHARACTERISTIC OF THEIR VEHICLE. Read More »
This Preliminary Information communication advises the technician that some vehicles may have a radio display that is covered when the radio station favorites list is maximized. Read More »
This informational bulletin provides Information on Inappropriate Warranty Claims Submitted for Damaged Radios and Instrument Panel Clusters (IPCs) Read More »
This Preliminary Information communication advises the technician about vehicles that may have a inoperative radio with Diagnostic Trouble Code U0184 set in modules and unable to communicate with the radio using the scan tool. Read More »
This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, display, and Media Disc Players are placed on restriction through the General ... Read More »
This preliminary informational bulletin provides radio programming information to correct customer concerns about no XM audio or time shift, radio lock-up, slow response, vertical line between clock and temperature, poor FM reception ... Read More »
This technical bulletin provides repair information on radio speaker amplifier reprogramming to correct a customer concern of a droning or booming noise while traveling at low speeds with the convertible top down. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an inoperative radio. Technician may find Diagnostic Trouble Code U0184 stored in multiple modules. Read More »
This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, display, and Media Disc Players are placed on restriction through the General ... Read More »
This preliminary informational bulletin provides radio programming information to correct customer concerns about no XM audio or time shift, radio lock-up, slow response, vertical line between clock and temperature, poor FM reception ... Read More »
This Preliminary Information communication provides information to the technician about when listening to an iPod that the first song will still be displayed when the next song in the list is playing. Read More »
This Preliminary Information communication provides information to the technician about vehicles that radio is inoperative, loss of sound, or their display is blank. Technician will need to cycle power to the radio and retest. Read More »
This Preliminary Information communication provides information to the technician about vehicles with a CD player is inoperative. Technician should cycle power to the CD play and retest. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an inoperative radio. Technician may find Diagnostic Trouble Code U0184 stored in multiple modules. Read More »
This Preliminary Information communication provides information to the technician for vehicles with the radio inoperative. The technician may find no communication with the radio and a diagnostic trouble code U0184 set in other modules. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the radio can be turned on after turning the ignition off and opening the driver?s door. Read More »
This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, display, and Media Disc Players are placed on restriction through the General ... Read More »
This preliminary informational bulletin provides radio programming information to correct customer concerns about no XM audio or time shift, radio lock-up, slow response, vertical line between clock and temperature, poor FM reception ... Read More »
This preliminary informational bulletin provides repair information to correct customer concerns about blank display, NAV screen audio content is unavailable via speech recognition, display screen is stuck on incoming call view after ... Read More »
This preliminary informational bulletin provides radio programming information to correct customer concerns about no XM audio or time shift, radio lock-up, slow response, vertical line between clock and temperature, poor FM reception ... Read More »
This preliminary information provides a procedure to update the radio to correct the cutomers concern of no XM, radio locks up, slow response time, vertical lines between the clock and temp guage, and poor FM reception. Read More »
This preliminary information provides a procedure to update the radio to correct the cutomers concern of a Blank Display, NAV Screen Audio Content is Unavailable via Speech Recognition, Display Screen is Stuck on Incoming Call View After ... Read More »
This Preliminary Information communication provides information to the technician about vehicles with an inoperative CD player. Technician will need to contact General Motors Technical Assistance Center for further assistance. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the navigation voice feedback is choppy, distorted, or garbled. Read More »
This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, display, and Media Disc Players are placed on restriction through the General ... Read More »
This Preliminary Information communication provides information to the technician that when the vehicle is shut off while the radio is off and the analog clock is displayed, the radio will turn back on with muted audio if the customer ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that show an error message when a media disc is installed. Read More »
This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, display, and Media Disc Players are placed on restriction through the General ... Read More »
This Preliminary Information communication provides information to the technician about vehicle that has no XM audio on certain channels but XM channel info is displayed. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a message on the radio "maximum number of phones are currently paired to the vehicle". Read More »
This Technical bulletin provides a procedure to request a hard mute from Onstar when navigation is annoucing directions and to correct the customers concern of the radio being loud during navigation. Read More »
This preliminary bulletin explains to the technician to use the vin when reprogramming the radio using the techline/service programming systems. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may not receiving all channels on the XM band. Read More »
This Preliminary Information communication advises the technician that some vehicles may have a radio display that is covered when the radio station favorites list is maximized. Read More »
This Preliminary Information communication provides information to the technician about vehicles that has no XM audio on certain channels but XM channel info is displayed. Read More »
This Preliminary Information communication provides information to the technician about vehicles that when a Canadian customer may comment that when they travel to the United States, they are unable to connect to OnStar or use hands free ... Read More »
This Preliminary Information communication provides information to the technician that customers may inquire as to the availability of OnStar bluetooth on their vehicle. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF RECEIVING FREQUENT "OFF ROUTE" MESSAGES WHILE FOLLOWING TURN BY TURN (TBT) ROUTE NAVIGATION. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF RECEIVING FREQUENT "OFF ROUTE" MESSAGES WHILE FOLLOWING TURN BY TURN (TBT) ROUTE NAVIGATION. Read More »
"THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO CONTACT ONSTAR FOR HARD MUTE REQUEST TO CORRECT A CUSTOMER CONCERN WHEN THE RADIO IS ON, IT DOES NOT MUTE ENOUGH WHEN THE ONSTAR? TURN-BY-TURN NAVIGATION DIRECTIONS ARE ANNOUNCED DUE TO ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS FOR DIAGNOSING THE CONCERN. THE VEHICLE MAY BE UNABLE TO CONNECT TO ONSTAR USING THE WHITE, BLUE OR RED ONSTAR BUTTONS. Read More »
This preliminary informational bulletin provides information on GM is implementing a new service strategy that uses a set of universal coaxial repair kits to service vehicles. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN WITH THE STEPS NEED TO DIAGNOSE AND REPAIR VEHICLE THAT MAY HAVE A CONCERN WITH NAVIGATION ICON NOT SHOWING THE CORRECT LOCATION THEN JUMPING TO THE CORRECT ... Read More »
This informational bulletin provides information on Part Restriction and Ordering Process Information for OnStar Vehicle Communication Interface Modules (VCIM) (GMNA Only) Read More »
This informational bulletin provides information regarding Part Restriction and Ordering Process Information for OnStar Vehicle Communication Interface Modules Read More »
This Preliminary Information communication provides information to the technician about vehicle's odometer appears to be inaccurate relative to a known distance traveled. Technician should obtain a hand-held GPS unit to test the odometer. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. Read More »
This Preliminary Information communication provides information to the technician about vehicles that navigation system has inaccurate estimated time of arrival. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
This Preliminary Information communication provides information to the technician about vehicles that navigation system has inaccurate estimated time of arrival. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the Navigation radio does not have a global positioning system location but OnStar is able to accurately locate the vehicle. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the Navigation radio does not have a global positioning system location but OnStar is able to accurately locate the vehicle. Read More »
This preliminary informational bulletin provides repair information to correct a customer concern of no GPS signal displayed or navigation system does not recognize location of vehicle. Read More »
This Preliminary Information communication provides information to the technician about vehicles that are travelling from Canada to the United States. While in the United States they are unable to receive Turn-by-Turn directions. Read More »
This preliminary informational bulletin provides repair information to correct customer concerns about blank display, NAV screen audio content is unavailable via speech recognition, display screen is stuck on incoming call view after ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a blank displays, flashing displays, "Error or Update failed Messages", navigation map not loading, Bluetooth or USB concerns. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may OnStar inoperative and Navigation/GPS/Compass issues. Technician may find Diagnostic Trouble Codes B101D sym 3C and or F0. Read More »
This preliminary informational bulletin provides a procedure to reprogram the VPDR, install aluminum foil tape around the camera cable and reposition the courtesy lamp wiring harness to correct the customers concern of the GPS signal not ... Read More »
This preliminary information provides a procedure to update the radio to correct the cutomers concern of a Blank Display, NAV Screen Audio Content is Unavailable via Speech Recognition, Display Screen is Stuck on Incoming Call View After ... Read More »
14395 - CUSTOMER SATISFACTION. ON SOME VEHICLES, A PERFORMANCE ISSUE WITH THE ONSTAR? MODULE MIGHT IMPACT THE VEHICLE'S BATTERY LIFE. THIS CAN CAUSE A DEAD BATTERY IF THE VEHICLE IS NOT STARTED FOR APPROXIMATELY 4 DAYS. Read More »
This Preliminary Information communication provides information to the technician about vehicles that are travelling from Canada to the United States. While in the United States they are unable to receive Turn-by-Turn directions. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the navigation system does not recognize the location of the vehicle. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the navigation voice feedback is choppy, distorted, or garbled. Read More »
This informational bulletin provides the technician on what to do if the customer has a navagation concern and submit a feedback form to the GM navigation disc center website. Read More »
This informational bulletin provides the technician on what to do if the customer has a navagation concern and submit a feedback form to the GM navigation disc center website. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the navigation voice feedback is choppy, distorted, or garbled. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
This Technical bulletin provides a procedure to request a hard mute from Onstar when navigation is annoucing directions and to correct the customers concern of the radio being loud during navigation. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a frequent "off route" messages while following Turn by Turn route. Read More »
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have an OnStar Turn-By-Turn Navigation the system that is inoperative. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D Read More »
This Preliminary Information communication provides information to the technician about vehicles that have run hot and or has a tick noise. Technician should inspect the head gaskets to ensure are not installed backwards. Read More »
This Preliminary Information communication provides information to the technician on using the correct oil when changing the oil on a Corvette with regular production option code Z51, LT1, LT4, Z52, Z06, and non Z51 with LT1. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a lifter that has collapsed and is stuck in the lifter bore when completing 15-06-01-002A. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have extended or long crank time during cold ambient air temperatures. Read More »
This Preliminary Information communication advises the technician on diagnostic aids to help with the diagnosis and repair of 8 Speed Transmissions Read More »
This Preliminary Information communication provides information to the technician that General Motors and General Motors of Canada Company do not support cross border sales. Read More »
This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC). Read More »
This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC. Read More »
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. Read More »
This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Read More »
This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program. Read More »
This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only). Read More »
This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA). Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC). Read More »
This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only). Read More »
This warranty administration bulletin provides policy information, proper labor operation selection and causal part identification for warranty transactions (U.S. Only). Read More »
This warranty administration bulletin provides policy information for variable diagnostic time allowances on select labor operations (U.S. Only). Read More »
This service bulletin provides information for accurate tire pressures that ensure the safe handling and appropriate ride characteristics of GM cars and trucks. Read More »
This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only). Read More »
This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and the warranty transaction submission procedures that support the Personal Property Damage process. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This service bulletin provides information on Handling Requests for Modifications to Permanently Import/Export Vehicles Between the U.S. and Canada. Read More »
This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA). Read More »
This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA). Read More »
This service bulletin provides information on GM Canada New Vehicle Tire Warranty Program for Original Equipment (OE) Tires and PDI installed Limited Production Option (LPO) Tires. Read More »
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. Read More »
This service bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC). Read More »
This Warranty Administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information. Read More »
This warranty administration bulletin provide policy information for variable diagnostic time allowances on select labor operations (U.S. Only). Read More »
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. Read More »
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. Read More »
This Preliminary Information communication provides information to the technician that General Motors and General Motors of Canada Company do not support cross border sales. Read More »
This Preliminary Information communication provides information to the technician that General Motors and General Motors of Canada Company do not support cross border sales. Read More »
This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the information found in the service manual. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Read More »
This warranty administration bulletin provides information on Warranty Administration ? Customer Concern Not Duplicated (CCND) Labor Operation Numbers. Read More »
This warranty administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information. Read More »
This warranty administration bulletin provides information on the tires supplied with a new vehicle are covered by General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty. Read More »
This warranty administration bulletin provide policy information to cover GMs policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada. Read More »
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only). Read More »
This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC). Read More »
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only). Read More »
This informational bulletin provides information on comebacks prevention information and using customer concern verification sheets (CCVS). Read More »
This technical bulletin provides information for new transmission oil to use, a procedure for exchanging the old fluid and adding the new fluid to a service transmission. Read More »
This technical bulletin provides repair information to correct a customer concern of Audio Muting When Listening to Some SiriusXM Channels Due to Interference in Some Geographic Locations. Read More »
This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module. Read More »
This informational bulletin provides information for the dealer technician to gather as much information to help aid Engineers by completely filling out requested reports. Read More »
This Preliminary Information communication advises the technician that the Product Quality Center part restriction has ended for the 8L45 and 8L90 park actuator rod. Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer. Read More »
This Preliminary Information communication provides information to the technician about customers that may inquire as to whether or not a rear sway bar can be added to a vehicle that was not originally equipped with one. Read More »
This informational bulletin provides information on comebacks prevention information and using customer concern verification sheets (CCVS). Read More »
This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC). Read More »
This informational bulletin was created to inform that any accessories that are installed from the GM factory will be covered under the standard vehicle warranty and dealer installed accessories will be covered for a full year (12 months). Read More »
This Preliminary Information communication advises the technician that the Product Quality Center has a part restriction for the 8L45 and 8L90 park actuator rod. Read More »
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. Read More »
This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits. Technicians should refer to Service Information for information regarding most accessories. Read More »
This informational bulletin explains possible normal condition of a flare from 1st to 2nd, even if the trans had been repaired for the flare and its still noticed. Read More »
This Preliminary Information communication advises the technician rear wheel drive manual transmissions have been placed on restriction. Dealer will need to contact General Motors Product Quality Center for further assistance. Read More »
This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats. Technician can check Service Information for some accessories. Read More »
This Preliminary Information communication advises the technician when Service Information diagnostics indicates a fuel injector may need to be removed for a repair or replaced the injector will need a new seal. Read More »
This Preliminary Information communication provides information to the technician on using the correct oil when changing the oil on a Corvette with regular production option code Z51, LT1, LT4, Z52, Z06, and non Z51 with LT1. Read More »
This information bulletin explains the labor operation numbers used for submitting warranty claims and how to setup, and reprogram modules. Read More »
This bulletin contains information for the new tires that the vehicle is equipped with and that they are covered by General Motors against defects in material or workmanship under the New Vehicle Warranty (Base Warranty Coverage). Read More »
This informational bulletin provides information to address a chatter noise during low speed tight turn conditions (i.e. parking lot, driveway, etc.) primarily during cooler ambient temperatures. Read More »
This bulletin contains information for the new tires that the vehicle is equipped with and that they are covered by General Motors against defects in material or workmanship under the New Vehicle Warranty (Base Warranty Coverage). Read More »
This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats. Technician can check Service Information for some accessories. Read More »
This Preliminary Information communication provides information to the technician on using the correct oil when changing the oil on a Corvette with regular production option code Z51, LT1, LT4, Z52, Z06, and non Z51 with LT1. Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer. Read More »
This warranty administration bulletin provide policy information on warranty and policy exchange program for electronic products for U.S. and Canada dealers only. Read More »
This Warranty Admin bulletin provides retail and wholesale service personnel with the policies/procedures and the warranty transaction submission procedures that support the Personal Property Damage process. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THAT GENERAL MOTORS AND GENERAL MOTORS OF CANADA COMPANY DO NOT SUPPORT CROSS BORDER SALES. Read More »
This informational bulletin provides information on comebacks prevention information and using customer concern verification sheets (CCVS). Read More »
THIS WARRANTY ADMINISTRATION BULLETIN PROVIDE POLICY ON PERFORMING GM COVERED VEHICLE SERVICES AND MAINTENANCE ON VEHICLES ORIGINATING/SOLD IN CANADA. Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REMOVE THE TRANSPORT MODE ON MESSAGE DISPLAYED IN THE DIC DUE TO VEHICLES SHIPPED OVER LONG DISTANCES OUTSIDE THE U.S. AND CANADA. Read More »
This informational bulletin provides warranty policy information on revised wiring repair labor operations and required additional information. Read More »
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION TO ADVISE THE CUSTOMERS THAT HAVE ENROLLED THEIR VEHICLE INTO THE ONSTAR ADVANCED DIAGNOSTICS & REAL TIME DIAGNOSTIC ALERTS THEY MAY RECEIVE ALERTS FROM THEIR VEHICLE WHEN IT IS BEING ... Read More »
THIS WARRANTY ADMINISTRATION BULLETIN PROVIDES INFORMATION ON GM?S POLICY ON PERFORMING GM COVERED VEHICLE SERVICES AND MAINTENANCE ON VEHICLES ORIGINATING/SOLD IN CANADA. Read More »
This informational bulletin provides information on what is needed to be prepared for TAC, caller preparedness and checklists and contacting U.S. Read More »
This engineering informational bulletin is requesting information from th field on vehicles that have the condition of a vehicle crank and no start with DTC P0011 and or P00C6 set Read More »
This informational bulletin provides information on New Vehicle Pre-Delivery Inspection (PDI) - Delivering Quality Vehicles and Generating Higher CSi Scores Read More »
This warranty informational bulletin provides a list of all the required operating procedures and explains them out to what is acceptable and not. Read More »
This informational bulletin provides Information Regarding Servicing Components Located Near SIR Components and how to properly disable the SIR system for repairs at or near Read More »
This informational bulletin provides information on Clarification of Use - Dealer Empowerment Labor Operations and Customer Enthusiasm (U.S. Only) Read More »
15521 - CUSTOMER ADVISORY LETTER. THIS LETTER IS BEING SENT TO BRING TO THE CUSTOMER'S ATTENTION FEATURES THAT ARE COVERED IN THE VEHICLE'S OWNER MANUAL IN SITUATIONS WHERE THE CUSTOMER VEHICLE SIDE DOORS WILL NOT OPEN FROM INSIDE AND ... Read More »
IPC Odometer Programming Method Quick Reference Guide Season Odometer Programming Methods in Use Today 1. IPC reprogramming and setup using the service programming system (SPS). 2. Read More »
This warranty administration bulletin provides policy information on an updated warranty and policy exchange program for electronic products through GM authorized Electronic Service Centers (ESCs) (U.S. and Canada). Read More »
This informational bulletin provides information to dealership personnel on proper engine and automatic transmission/transaxle identification. Read More »
This warranty administration bulletin provides policy information on Causal Part requirements for transactions submitted to GM for payment. Read More »
This warranty administration bulletin provides policy information on an updated warranty and policy exchange program for electronic products through GM authorized Electronic Service Centers (ESCs) (U.S. and Canada). Read More »
This Preliminary Information communication provides information to the technician with tips on the Text Messaging feature that is available on some newer General Motors infotainment systems. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the Turn By Turn directions may no longer be displayed after the Canada OnStar upgrade. Read More »
This Preliminary Information communication provides information to the technician about the Media Oriented Systems Transport Bus Diagnostic Tool Kit (EL-51578) has been released to help diagnose any of the Media Oriented Systems Transport ... Read More »
This Preliminary Information communication advises the technician before replacing the crankshaft to review the following. Dealer should complete the Service Information diagnostics and the Cost Comparison Worksheet for Assembly Repair vs. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have Service Engine Soon Malfunction Indicator Lamp. Read More »
This technical bulletin provides repair information to correct a customer concern of engine misfire/tick noise, Malfunction Indicator Lamp (MIL) On, and/or DTC P0300 set. Read More »
This informational bulletin provides dealership personnel with Global Warranty Management (GWM), Warranty Parts Center (WPC), and Parts Return Program information. Read More »
This preliminary informational bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp (MIL) illuminated. Technician may find DTC P0502: Vehicle Speed Sensor (VSS) Circuit Low Voltage. Read More »
This Preliminary Information communication provides information to the technician on using the correct oil when changing the oil on a Corvette with regular production option code Z51, LT1, LT4, Z52, Z06, and non Z51 with LT1. Read More »
This preliminary informational bulletin provides a diagnostic tip for a customer concern of Malfunction Indicator Lamp (MIL) on, and technician finding DTC P0503 only set with no other symptoms. Read More »
This preliminary informational bulletin provides repair information to correct a customer concern of MIL illuminated with Engine Power is Reduced message displayed after cold start. Technician may find DTC P16F3 set in history. Read More »
This preliminary informational bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp (MIL) illuminated with firm upshifts and downshifts, and technician finding DTC P0606 or P2818 set. Read More »
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Diagnostic Trouble Code P06DD with no drivability concerns. Read More »
This informational bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered seepage. Read More »
This technical bulletin provides repair procedure information to correct a customer concern of Transport Mode On message displayed in Driver Information Center (DIC) and/or battery light is flashing. Read More »
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Diagnostic Trouble Code P06DD with no drivability concerns. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B124B sym 04 in the HMI module. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have Service Engine Soon Malfunction Indicator Lamp. Read More »
This Preliminary Information communication advises the technician that the LCT1000 6 Speed Allison automatic transmission is on restriction through General Motors Product Quality Center. Read More »
This informational bulletin provides information on the Product Quality Center (PQC) assembly replacement process for Service Agents not required to contact PQC prior to assembly replacement. Read More »
This preliminary informational bulletin provides a diagnostic tip for a customer concern of Malfunction Indicator Lamp (MIL) on, and technician finding DTC P0503 only set with no other symptoms. Read More »
This informational bulletin provides information on dealer reimbursement procedures for Customer Assistance Center (CAC) Tier 1 and Tier 2 empowerment tools: diagnostic fee, short term rental, and up-front towing (U.S. only). Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have Service Engine Soon Malfunction Indicator Lamp on without a drivability concern. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a Diagnostic Trouble Code B101D sym 39 in the Human Machine Interface. Technician should not replace any parts for this concern. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on and Diagnostic Trouble Code P0300 - P0308 may set. Read More »
This Preliminary Information communication advises the technician that the 8L90 8 Speed Automatic transmission is on exchange through General Motors Product Quality Center. Read More »
This Preliminary Information communication advises the technician that the E92 ECM Restriction Part Number 12662034 will be placed on restriction through the General Motors Product Quality Center. Read More »
This informational bulletin adds 2014 - 2015 model years to information regarding comeback prevention and using Customer Concern Verification Sheets (CCVS). Read More »
This Preliminary Information communication advises the technician the LCT1000 6 Speed Allison automatic transmission is on restriction through General Motors Product Quality Center. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have a "Change Brake Pads" message that appears in the Driver Information Center. Read More »
This warranty administration bulletin adds 2012 - 2015 model years to information communicating a change in the product field action customer reimbursement procedure (U.S. Dealers Only). Read More »
This warranty administration bulletin provide policy information of the JOB CARD, for a repair on vehicles and what is acceptable - customer authorization; Service manager approvals and transaction authorization; Details of concern, cause ... Read More »
This informational bulletin helps the technician quick reference repairs to bulletins as opposed to replacing parts that may be un necessary. Read More »
This information bulletin provides a procedure for the technicians to perform a transmission re-learn to correct a customer concern of low milage harsh shifting. Read More »
This warranty bulletin explains how to use the EL-50313 Midtronic GR8 Battery tester to test a battery and determin if it is warranty or not. Read More »
This information for Warranty administration - Changes the Service Policy and Procedures Section 1.6.2.11 and list the requirements for the dealer to comply. Read More »
This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats. Technician can check Service Information for some accessories. Read More »
This information bulletin provides the technician with additional information on fixing the vehicle right the first time by listing possible concerns to specific vehicles. Read More »
This informational bulletin provides a process to the service agents that are not required to contact PQC, to determine when to replace a assembly as opposed to repairing and if an engine or transmission is being returned, that it has all ... Read More »
This informational bulletin provides technicians with ways to decrease the tire slipping on the rim and reduce to possible chances of the customers concerns over tire vibration are repair. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Read More »
This informational bulletin was created to inform that any accessories that are install from the GM factory will be covered under the standard vehicle warranty and dealer installed accessories will be cover for a full year (12months). Read More »
This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines. Read More »
This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats warped or misshapen. Read More »
This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated. Read More »
This technical bulletin provides a procedure to replace the left side differential carrier cover and seal to correct a condition of Warble Noise from the Rear of the Vehicle. Read More »
This technical bulletin provides a procedure to replace the left side rear axle housing cover to correct a condition of Warble Noise from the Rear of the Vehicle. Read More »
This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels ... Read More »
This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability. Read More »
This preliminary informational bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers. Read More »
This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area. Read More »
This informational bulletin explains Unscheduled Supplemental Services (including Flushing Services and Additives) and the Proper use of GM Simplified Maintenance Schedules. Read More »
This informational bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining. Read More »
This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier ... Read More »
This technical bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have low oil pressure, no oil pressure, and/or engine noise. Technician will need to replace the oil pump, flush the oil cooler lines. Read More »
The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them. Read More »
This informational bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts. Read More »
This informational bulletin provides information to the tech to replace only the prop shaft and not the complete driveline support assembly (DSA) if a rattle noise is confirmed to be coming from the prop shaft. Read More »
This technical bulletin provides a procedure to reposition the coolant surge hose clamp away from the hood blanket to avoid hood closing interference. Read More »
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer. Read More »
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL. Read More »
This technical bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL on. Read More »
This informational bulletin provides information for information on passenger presence sensing system (PPS or PSS) concerns with custom upholstery, accessory seat heaters or other comfort enhancing devices. Read More »
This technical bulletin provides a procedure for replacing the emblem on the seat cover as opposed to replacing the whole seat cover itself. Read More »
This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Read More »
This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Read More »
Clicking Noise from Front Wheels While Turning at Slow Speeds Condition Some customers may comment on a clicking noise emanating from the front wheels location. Read More »
This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Read More »
15086A - Customer Satisfaction Program. On certain passenger cars and light duty trucks, equipped with Gen 10 OnStar?, the embedded phone flash memory chip may become corrupted, causing the OnStar? system to become inoperative. Read More »
This preliminary informational bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers. Read More »
This informational bulletin explains possible normal condition of a flare from 1st to 2nd, even if the trans had been repaired for the flare and its still noticed. Read More »
This Preliminary Information communication provides information to the technician about vehicles that maynot move after being parked for extended period of time. Read More »
This Technical bulletin provides information to stop a noise concern from front of dash at idle. The Correction is to Reposition foam insulating sleeve on EVAP solenoid pipe to avoid contact of the pipe and cowl. Read More »
This warranty administration bulletin provides policy information on Causal Part requirements for transactions submitted to GM for payment. Read More »
this informational bulletin provides Information on Using MyBuick, MyCadillac, MyChevrolet, and MyGMC Phone Applications to Control GM Accessory Remote Start Kits. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a coolant loss and/or coolant odor after driving the vehicle. Read More »
This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats. Technician can check Service Information for some accessories. Read More »
This Preliminary Information communication provides information to the technician about engine block that have a possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder ... Read More »
This bulletin contains information for the new tires that the vehicle is equipped with and that they are covered by General Motors against defects in material or workmanship under the New Vehicle Warranty (Base Warranty Coverage). Read More »
This warranty administration bulletin provides information on The tires supplied with a new vehicle are covered by General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty. Read More »
This informational bulletin provides information on new tools used for the Hem Flanges and how to repair and seal the flanges when the repairs are done. Read More »
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO INSPECT THE AIR BOX AND AIR FILTER SEAL AND REPLACE IF NECESSARY TO CORRECT A CUSTOMER CONCERN THAT THE MALFUNCTION INDICATOR LIGHT (MIL) IS ILLUMINATED DUE TO EXCESSIVE SAND AND/OR DEBRIS ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES THE TECHNICIAN WITH A DIAGNOSTIC AID FOR IDENTIFYING INFOTAINMENT COMPONENTS ON THE VEHICLES TO ENSURE THAT THE CORRECT COMPONENT IS ORDERED OR REPLACED AND THE CORRECT LABOR CODE IS ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT A NOISE OR A VIBRATION IN THE VEHICLE THAT SEEMS TO BE ABNORMAL MAY NOT HAVE BEEN THERE WHEN THE VEHICLE WAS PURCHASED. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION IS TO CONTACT GM TECHNICAL ASSISTANCE CENTER TO REPORT THE CONCERN AND OBTAIN A CASE NUMBER. THE CUSTOMER IS UNABLE TO SELECT RADIO PRESETS FROM THE USB OR SD CARD AS THEY ARE GREYED OUT. Read More »
This informational bulletin provides information on Clarification of Use - Dealer Empowerment Labor Operations and Customer Enthusiasm (U.S. Only) Read More »
This informational bulletin provides information on Unscheduled Supplemental Services (Including Flushing Services and Additives) and Proper Use of GM Simplified Maintenance Schedules (U.S. Only) Read More »
This informational bulletin provides information on how to properly repair rust on the hem flange on doors for vehicles that have the condition of rust showing at hem flange Read More »
This technical bulletin provides a procedure on how to remove door trim panles and replace chime speaker pigtail connectors for vehicles with the condition of intermittent loss of chime from speaker Read More »
This informational bulletin provides information on Behavior of Non-Upgraded OnStar Equipped Vehicles Operating in Canada after Decommissioning of 2G CDMA Cellular Networks Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a lifter that has collapsed and is stuck in the lifter bore when completing 15-06-01-002A. Read More »
This Preliminary Information communication provides information to the technician about the ?Chevrolet Complete Care Program (U.S.)? oil changes. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts are being performed on customer?s vehicles that exhibit vibration conditions without utilizing the ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that have a no start or multiple messages on the Driver Information Center during cold weather. Read More »
This Preliminary Information communication provides information to the technician with tips on the Text Messaging feature that is available on some newer General Motors infotainment systems. Read More »
This Preliminary Information communication provides information to the technician about customers that may inquire as to whether or not a rear sway bar can be added to a vehicle that was not originally equipped with one. Read More »
This warranty administration bulletin provides dealership personnel with policy and procedure requirements for essential tools that include consumable parts (U.S. Only). Read More »
This Preliminary Information communication provides information to the technician on the steps need to diagnose and repair vehicles that may have stalling shudder and/or hard shifting into 1st gear or reverse vibration on launch (with ... Read More »
This informational bulletin provides information to dealership personnel regarding warranty codes generated by EL-50313 Midtronics GR8 Battery Tester/Charger required for claim processing on labor operations 4041510, 4041520 and 250 ... Read More »
GENERAL MOTORS: TSB CONTAINS AN OWNER'S NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. ON CERTAIN TRUCKS AND VEHICLES, THE ONSTAR SYSTEM IS INOPERATIVE DUE TO EMBEDDED PHONE FLASH MEMORY CHIP AND VEHICLE COMMUNICATION ... Read More »
This informational bulletin provides information for dealers/technicians on when and how to submit a Field Product Report (FPR) (U.S. Dealers Only). Read More »
This Preliminary Information communication provides information to the technician how to diagnose and repair a vehicle with an engine that runs with an intermittent crank no start with a Diagnostic Trouble Code P0011 or P00C6 current or ... Read More »
This informational bulletin provides information to assist dealership personnel with the identification of vehicle headlamp, tail lamp, license lamp or fog/driving lamp damage that are not considered warrantable. Read More »
This warranty administration bulletin provides retail and wholesale service personnel with the policies and the warranty claims submission procedures that support Labor Operation 0600014 - Suspected Tampering or Vehicle Modifications. Read More »
This informational bulletin provides dealership personnel information on unscheduled supplemental services (including flushing services and additives) and proper use of GM simplified maintenance schedules (Canada only). Read More »
This informational bulletin provides information on the PQC assembly replacement process - for dealers required to contact PQC prior to replacing an assembly (U.S. and Canada only). Read More »
This warranty administration bulletin provides information to clarify proper transaction administration of GM Dealer Empowerment Program and Goodwill Cases. Read More »
This Preliminary Information communication provides information to the technician about customers that would like to install Regular Production Option Code NPP (Performance Exhaust System) to a Stingray that was produced without the option. Read More »
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have oil dripping out of the air filter box. Read More »
This information for Warranty administration - Changes the Service Policy and Procedures Section 1.6.2.11 and now is refered to Article 3.2. Read More »
This warranty administration bulletin provide policy information of the JOB CARD, for a repair on vehicles and what is acceptable - customer authorization; Service manager approvals and transaction authorization; Details of concern, cause ... Read More »
This warranty bulletin explains how to use the EL-50313 Midtronic GR8 Battery tester to test a battery and determin if it is warranty or not. Read More »
This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats. Technician can check Service Information for some accessories. Read More »
This warranty bulletin explains how to use the EL-50313 Midtronic GR8 Battery tester to test a battery and determin if it is warranty or not. Read More »
Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Read More »
Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Read More »
This informational bulletin was created to inform that any accessories that are install from the GM factory will be covered under the standard vehicle warranty and dealer installed accessories will be cover for a full year (12months). Read More »
This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure, when diagnosing vibration concerns. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have various Heater-Vent-Air Conditioning issues. Read More »
This technical bulletin provides repair information for the correction of a customer concern of short duration musty odors emitted from the HVAC system at vehicle start-up in hot, humid conditions. Read More »
This preliminary informational bulletin provides technicians with diagnostic tips for a customer concern of odor emanating from HVAC system. Read More »
This preliminary informational bulletin provides technicians with diagnostic tips for a customer concern of odor emanating from HVAC system. Read More »
This Preliminary Information communication provides information to the technician about vehicles with various Heater-Vent-Air Conditioning concerns. Read More »
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Read More »
This Preliminary Information communication provides information to the technician about vehicles that have extended or long crank time during cold ambient air temperatures. Read More »
This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses. Read More »
This Preliminary Information communication provides information to the technician that General Motors and General Motors of Canada Company do not support cross border sales. Read More »
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations. Read More »
