Technical Service Bulletins (TSBs) for the 2018 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 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 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 »
18197 - Customer Satisfaction Program. Certain vehicles, equipped with (RPO FE6) suspension system-ride, handling, and performance, may have an incorrect service calibration for the suspension control module, which may not provide the ... Read More »
18149 - Customer Satisfaction Program. Certain vehicles may have a condition in which, the front and/or rear spring strap retainer bolts, and the front and/or rear stabilizer shaft clamp bolts may not have achieved the intended torque ... Read More »
18149 - Customer Satisfaction Program. Certain vehicles may have a condition in which, the front and/or rear spring strap retainer bolts, and the front and/or rear stabilizer shaft clamp bolts may not have achieved the intended torque ... 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 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 informational bulletin provides information on what to do with the loose shipped brake cooling deflectors, duct and metal wheel blocker rings while performing the pre-delivery inspection. 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 service bulletin provides information for cleaning the brake calipers that may have staining/discoloring on the paint of the brake caliper. 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 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 informational bulletin provides information on what to do with the loose shipped brake cooling deflectors, duct and metal wheel blocker rings while performing the pre-delivery inspection. Read More »
This preliminary informational bulletin provides information regarding the normal characteristic of instrument panel red brake light intermittently comes on. 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 service bulletin informs the technician to inspect for a possible electrical concern at the ECM X2 electrical connector to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated - DTC P0333 Set. 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 technical bulletin provides repair information for replacement of the drive belt tensioner to correct a customer concern for a rattle noise at 48 km/h (30 mph) to 64 km/h (40 mph) when the engine is switching between V4 and V8 and/or ... 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 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 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 the technician with steps on how to program an Engine Control Module when getting a Service Programming System error code E4491 or E4423. 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 communicatesP0016 setting after internal engire repair. The engine Base timing is not being set correctly. The information in this PI will be helpful in setting the timing in the vehicle. 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 technical bulletin provides repair information for replacement of the drive belt tensioner to correct a customer concern for a rattle noise at 48 km/h (30 mph) to 64 km/h (40 mph) when the engine is switching between V4 and V8 and/or ... 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 advises the possible issues that may occur using a scotch brite pad or highly abrasive disk on engine surfaces. Read More »
This service bulletin advises the technician of possible coolant entering the areas of the engine, either through failed parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine running rough. 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 informational bulletin advises the technician of possible coolant entering the areas of the engine, either through failed parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine ... 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 informational bulletin advises the technician of possible coolant entering the areas of the engine, either through failed parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine ... 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 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 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 communicates P0016 setting after internal engire repair. The engine Base timing is not being set correctly. The information in this PI will be helpful in setting the timing in the vehicle. 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 communicatesA vehicle may have a concern ofDTCP050D settingalongwith a P0300 after a cold start up. White smoke and/or coolant odor may come from exhaust for an extended period of time at cold start as well. 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 Preliminary information communicatesA vehicle may have a concern ofDTCP050D settingalongwith a P0300 after a cold start up. White smoke and/or coolant odor may come from exhaust for an extended period of time at cold start as well. 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 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 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 technical bulletin provides repair information for replacement of the drive belt tensioner to correct a customer concern for a rattle noise at 48 km/h (30 mph) to 64 km/h (40 mph) when the engine is switching between V4 and V8 and/or ... 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 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:OIL COOLER
This service bulletin informs the technician that if the vehicle has an engine misfire with DTC P0300 set, and supercharger?s cooling system has been previously repaired, it must be properly evacuated and filled. 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 »
ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR
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 »
ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY
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 »
ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS
This informational bulletin advises the technician of possible coolant entering the areas of the engine, either through failed parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine ... 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 »
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
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 »
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 »
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
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 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 »
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 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 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 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 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 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 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 a repair procedure to correct a customer concern of Delayed and/or Harsh Engagement of Transmission Shift After Vehicle Sitting with Engine Off. 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 informs the technician to inspect for a possible electrical concern at the ECM X2 electrical connector to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated - DTC P0333 Set. 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 engineering information bulletin ends the need for information from the field on an Intermittent No Forward and/or No Reverse While Driving condition. If this condition is encountered, refer to SI for further diagnosis. 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 a procedure to validate if the parking pawl actuator is not working as attended 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 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 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 communicatesSES lamp, setting DTC P0333 when shifting the Transmissionfrom park.DTC P0333 cansetdue to voltage from the Transmission park/neutral signal 1circuit bleeding into the knock sensor system circuits. Read More »
This Preliminary Information communication advises the technician that the Product Quality Center has ended the part restriction for the T87A Transmission Control Module. 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 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 Preliminary Information communication advises the technician that the Product Quality Center has a part restriction for the T87A Transmission Control Module. Read More »
This engineering informational bulletin is requesting information from the field on vehicles that have the condition of a Torque Converter Shudder. Read More »
This Preliminary information communicatesSES lamp, setting DTC P0333 when shifting the Transmissionfrom park.DTC P0333 cansetdue to voltage from the Transmission park/neutral signal 1circuit bleeding into the knock sensor system circuits. 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 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 communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. 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 »
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 »
POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER
This engineering informational bulletin is requesting information from the field on vehicles that have the condition of a Torque Converter Shudder. Read More »
This engineering informational bulletin is requesting information from the field on vehicles that have the condition of a Torque Converter Shudder. Read More »
POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:SHAFT:INPUT
Rattle Type Noise/Sound from the Drive Support Assembly (DSA) Condition Some customers may comment on a rattle type noise. Further investigation will reveal the noise is originating from the drive support assembly area. 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 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 warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with ... Read More »
This Preliminary information communicates and issue with the memory seat module waking up the low speed GM lan bus and causing a battery draw. 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 service bulletin informs the technician to inspect for a possible electrical concern at the ECM X2 electrical connector to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated - DTC P0333 Set. 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 communicates and issue with the memory seat module waking up the low speed GM lan bus and causing a battery draw. 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 »
This Preliminary information communicates and issue with the memory seat module waking up the low speed GM lan bus and causing a battery draw. 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 informs the technician to inspect for a possible electrical concern at the ECM X2 electrical connector to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated - DTC P0333 Set. 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 and issue with the memory seat module waking up the low speed GM lan bus and causing a battery draw. 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 informational bulletin provides information for dealers/technicians on Information on Head-Up Display (HUD) on Vehicles Model Year 2017 and Newer Has Rotational Feature that Allows for Adjusting of the Angle of the HUD Image. 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 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 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 communicatesThe vehicle may have an ses lamp with any of the following DTC P06DA, P06DB, P06DC, P250A, P0300, P0340, P0341, P0335, P0336, P0641, P0011, P0010, P2088, P2089, and/or P2230. Read More »
This Preliminary Information communication provides the technician with steps on how to program an Engine Control Module when getting a Service Programming System error code E4491 or E4423. 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 replace the HMI module to correct a condition of Radio Control (ICS) Display Does Not Remain Off at Times after it Has Been Turned Off in the Radio Settings Menu due to a software concern. Read More »
This technical bulletin provides a procedure to reprogram the memory set module to correct a condition of Personalization Selections Intermittently Missing from Comfort and Convenience Menu due to a calibration concern. 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 informational bulletin provides information to the customer on the radio display "info pages" being blank and to make sure to select in the "active info pages" menu. Read More »
This Preliminary Information communication provides information to the technician about vehicles that in the radio settings some of the vehicle personalization selections within the Comfort and Convenience menu are missing at times. 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 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 Preliminary Information communication provides information to the technician about vehicles that in the radio settings some of the vehicle personalization selections within the Comfort and Convenience menu are missing at times. 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 in the radio settings some of the vehicle personalization selections within the Comfort and Convenience menu are missing at times. 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 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 that when scanning a vehicle for Diagnostic Trouble Codes, may find a temporary loss of Human Machine Interface communication with Global Diagnostic System 2. 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 communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses. 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 »
Original Equipment Batteries Part Number and ACDelco Replacement Battery Approved Warranty Part Numbers Correct battery cold cranking amperage (CCA) ratings and type are critical for proper test results when using the EL-50313. 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 communicatesThe vehicle may have an ses lamp with any of the following DTC P06DA, P06DB, P06DC, P06B6, P06B7, P250A, P0300, P0340, P0341, P0335, P0336, P0641, P0011, P0010, P2088, P2089, and/or P2230. Read More »
This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs. Read More »
18038 - Service Update. The harness branch from the main body wiring harness (MBWH) to accelerator pedal may be pinched underneath the dead pedal bracket. There may be an intermittent check engine light and reduced engine power. 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 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 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 a procedure to reprogram the instrument panel to correct a condition of Instrument Cluster Goes Blank or Tell Tale Indicators Remain On due to a software issue. 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 »
All or Some Options May Be Missing from Driver Information Center (DIC) ?Info Pages? Menu Due to Them Not Being Selected Condition Some customers may comment that with the ?Info? option selected from the main menu (1), the ?Info ... 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 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 advises the technician that the Product Quality Center has a part restriction for the T87A Transmission Control Module. 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 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 service bulletin provides information for dealers/technicians on Stone Chip/Membrane Damage, Broken Connector and/or Sensor Retaining Tabs, and/or Paint Damage of Park Assist Sensors. Read More »
This informational bulletin provides information for dealers/technicians on Head-Up Display (HUD) on Vehicles Model Year 2017 and Newer Having Rotational Feature that Allows for Adjusting of Angle of HUD Image. 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 service bulletin informs the technician to inspect for a possible electrical concern at the ECM X2 electrical connector to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated - DTC P0333 Set. 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 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. 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 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 »
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW:ELECTRICAL HEATING ELEMENT
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 »
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 service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only). 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 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 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 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 technical bulletin provides a procedure to reposition the coolant surge hose clamp away from the hood blanket to avoid hood closing interference. Read More »
18038 - Service Update. The harness branch from the main body wiring harness (MBWH) to accelerator pedal may be pinched underneath the dead pedal bracket. There may be an intermittent check engine light and reduced engine power. 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 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 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 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 »
This informational bulletin provides information on what to do with the loose shipped brake cooling deflectors, duct and metal wheel blocker rings while performing the pre-delivery inspection. 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 mcgard wheel locks and if the key ever fractures that they will replace it via the website provided. 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 communicates and issue with the memory seat module waking up the low speed GM lan bus and causing a battery draw. 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 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 provides information to the customer about the rear camera guidelines not being present at times due to the VBM taking over the rear camera option. 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 informational bulletin provides information to the customer about the rear camera guidelines not being present at times due to the VBM taking over the rear camera option. Read More »
Rear View Camera Guidelines Not Present at Times Condition Some customers may report that the Rear View Camera (RVC) guidelines are temporarily not available at times but the RVC will remain on during the concern. 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 service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only). 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 to the customer about the rear camera guidelines not being present at times due to the VBM taking over the rear camera option. Read More »
This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with ... Read More »
This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with ... 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 »
This Preliminary information communicates that when a customer or technician attempts to add a new transmitter to a vehicle following the adding transmitters without Service Programming System procedure the procedure will not complete and ... 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 communicates that when a customer or technician attempts to add a new transmitter to a vehicle following the adding transmitters without Service Programming System procedure the procedure will not complete and ... 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 describes the new process for shipping ground effect components and other loose shipped parts for new vehicles. 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 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 engineering informational bulletin is requesting information pictures of windshield, steering wheel and/or door trim panel for product issues covered under warranty. 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 advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, and displays are placed on restriction through the General Motors Technical ... Read More »
This Preliminary Information communication provides information to the technician about connectivity concerns when connecting an Apple device via USB cord. Read More »
18149 - Customer Satisfaction Program. Certain vehicles may have a condition in which, the front and/or rear spring strap retainer bolts, and the front and/or rear stabilizer shaft clamp bolts may not have achieved the intended torque ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that when a phone does not charge properly or charging cycles is on and off rapidly when connected to the single port USB hub of the vehicle. 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 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 informational bulletin provides information on what to do with the loose shipped brake cooling deflectors, duct and metal wheel blocker rings while performing the pre-delivery inspection. Read More »
This informational bulletin describes the new process for shipping ground effect components and other loose shipped parts for new vehicles. 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 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 »
Rear View Camera Guidelines Not Present at Times Condition Some customers may report that the Rear View Camera (RVC) guidelines are temporarily not available at times but the RVC will remain on during the concern. Read More »
Original Equipment Batteries Part Number and ACDelco Replacement Battery Approved Warranty Part Numbers Correct battery cold cranking amperage (CCA) ratings and type are critical for proper test results when using the EL-50313. 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 Preliminary Information communication provides information to the technician that when scanning a vehicle for Diagnostic Trouble Codes, may find a temporary loss of Human Machine Interface communication with Global Diagnostic System 2. 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 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 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 provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with ... 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 informational bulletin provides information for dealers/technicians on Information on Head-Up Display (HUD) on Vehicles Model Year 2017 and Newer Has Rotational Feature that Allows for Adjusting of the Angle of the HUD Image. 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 provides information to the technician about vehicles that when a phone does not charge properly or charging cycles is on and off rapidly when connected to the single port USB hub of the vehicle. 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 informational bulletin provides information for the technician when looking up the P/N for the 3.5 mm audio jack for the USB, to make sure and enter the VIN# to ensure the correct part is being ordered. 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 that when scanning a vehicle for Diagnostic Trouble Codes, may find a temporary loss of Human Machine Interface communication with Global Diagnostic System 2. Read More »
The PI was created to advise of an engineering investigation for a concern of unable to connect toOnStar Virtual Advisor when selecting "New Destination" in the OnStar menu. 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 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 test the radios receiver if certain XM channels cut out (mutes) depending on location of the vehicle. Read More »
This technical bulletin provides a procedure to replace the HMI module to correct a condition of Radio Control (ICS) Display Does Not Remain Off at Times after it Has Been Turned Off in the Radio Settings Menu due to a software concern. Read More »
This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, and displays are placed on restriction through the General Motors Technical ... Read More »
This Preliminary Information communication provides information to the technician about vehicles that in the radio settings some of the vehicle personalization selections within the Comfort and Convenience menu are missing at times. Read More »
This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, and displays are placed on restriction through the General Motors Technical ... Read More »
This informational bulletin provides information to the customer on the radio display "info pages" being blank and to make sure to select in the "active info pages" menu. 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 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 vehicles that in the radio settings some of the vehicle personalization selections within the Comfort and Convenience menu are missing at times. Read More »
This Preliminary Information communication provides information to the technician about vehicles that in the radio settings some of the vehicle personalization selections within the Comfort and Convenience menu are missing at times. Read More »
This informational bulletin provides information to the customer on the radio display "info pages" being blank and to make sure to select in the "active info pages" menu. 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 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 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 informational bulletin describes the new process for shipping ground effect components and other loose shipped parts for new vehicles. 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 the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only). 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 informational bulletin provides information for dealers/technicians on Information on Head-Up Display (HUD) on Vehicles Model Year 2017 and Newer Has Rotational Feature that Allows for Adjusting of the Angle of the HUD Image. 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 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 information bulletin explains the labor operation numbers used for submitting warranty claims and how to setup, and reprogram modules. 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 Preliminary information communicates that when a customer or technician attempts to add a new transmitter to a vehicle following the adding transmitters without Service Programming System procedure the procedure will not complete and ... 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 informational bulletin provides information for dealers/technicians on Head-Up Display (HUD) on Vehicles Model Year 2017 and Newer Having Rotational Feature that Allows for Adjusting of Angle of HUD Image. 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 »
18149 - Customer Satisfaction Program. Certain vehicles may have a condition in which, the front and/or rear spring strap retainer bolts, and the front and/or rear stabilizer shaft clamp bolts may not have achieved the intended torque ... Read More »
Rattle Type Noise/Sound from the Drive Support Assembly (DSA) Condition Some customers may comment on a rattle type noise. Further investigation will reveal the noise is originating from the drive support assembly area. 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 »
Rear View Camera Guidelines Not Present at Times Condition Some customers may report that the Rear View Camera (RVC) guidelines are temporarily not available at times but the RVC will remain on during the concern. Read More »
Original Equipment Batteries Part Number and ACDelco Replacement Battery Approved Warranty Part Numbers Correct battery cold cranking amperage (CCA) ratings and type are critical for proper test results when using the EL-50313. 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 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 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 »
