Technical Service Bulletins (TSBs) for the 2003 Trailblazer 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.
FRONT BRAKE NOISE OR SQUEALING ON THE FIRST FEW LIGHT BRAKE APPLIES AFTER THE VEHICLE HAS SAT FOR A LONG PERIOD OF TIME, SUCH AS OVERNIGHT. THIS MESSAGE APPLIES TO THE LONG WHEEL BASE MODEL. SERVICE VME. Read More »
PRODUCT SAFETY RECALL 03025. FRONT LEFT BRAKE PIPE MAY HAVE BEEN SCORED DURING MANUFACTURING. THE BRAKE PIPE MAY LOSE STRENGTH AT THE SCORE LOCATION DUE TO CORROSION AND FATIGUE RESULTING FROM BRAKE FLUID PRESSURE, VIBRATION AND ... Read More »
ANTI-LOCK BRAKE SYSTEM (ABS) LIGHT ON, DIAGNOSTIC TROUBLE CODES (DTCS) C0265, C0201, U1041 SET AND/OR LOSS OF COMMUNICATION WITH BRAKE MODULE. *TT UPDATE. *TT Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE A MALFUNCTION INDICATOR LAMP ON OR ENGINE MISFIRE, ROUGH IDLE, EXTENDED CRANK, OR CRANK NO START IN SOME CASES. Read More »
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION TO GM DEALERS ON THE CORRECT CLEANING METHODS WHEN CLEANING ENGINE GASKET SEALING SURFACES. Read More »
BUICK/SAAB/CHEVROLET/HUMMER/GMC: SOME VEHICLES ARE EXPERIENCING, AT A COLD START FOR ENGINES, REDUCTION IN ENGINE POWER AND SES LIGHT, WHEN TEMPERATURES ARE -10F (-23C) AND ALSO REAR/FRONT CRANK SEAL, CAM COVER GASKET AND DIPSTICK TUBE ... Read More »
OPERATING CHARACTERISTICS OF THE ELECTRO-VISCOUS (EV) FAN CLUTCH AND DIAGNOSTIC TIPS FOR COOLING FAN NOISE, DELAYED TRANSMISSION SHIFTS AND/OR ENGINE REVVING TOO HIGH. *TT Read More »
INFORMATION ON USE OF BOLT EXTRACTOR TOOL KIT PART NUMBER EN-47702 FOR REMOVING BROKEN CYLINDER HEAD OR MAIN BEARING CAP BOLTS ON INLINE TRUCK ENGINES. *TT Read More »
HIGHER THAT PERCEIVED NORMAL ENGINE COOLANT TEMPERATURE GAUGE READINGS WHEN OPERATING THE VEHICLE IN VERY HIGH OUT SIDE AMBIENT TEMPERATURES AND IN STOP AND GO OR SLOW MOVING TRAFFIC CONDITIONS. *EH Read More »
BUICK/CADILLAC/CHEVROLET/GMC/HUMMER/PONTIAC/SAAB: OIL CONSUMPTION AND/OR EXHAUST SMOKE-POSSIBLE PCV BAFFLE OR LIFTER CONCERN. UPON INSPECTION, OBVIOUS OIL WILL BE FOUND IN THE INTAKE MANIFOLD AND/OR PCV VACUUM TUBE. Read More »
MULTIPLE DRIVEABILITY SYMPTOMS OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE DUE TO CLOGGED FUEL INJECTORS. *TT Read More »
PROPER CONNECTION INFORMATION TO AVOID BLOWN 125 AMP FUSE AND VARIOUS INTERIOR ELECTRICAL SYSTEM CONDITIONS WHEN JUMP STARTING VEHICLE. *TT Read More »
INTERMITTENT HESITATION, STUMBLE OR IDLE STALL WITHIN MINUTES OF STARTING AFTER THE VEHICLE HAS BEEN SITTING FOR SEVERAL HOURS. GM VOICEMAIL LOG. *TT Read More »
SERVICE ENGINE SOON LIGHT AND / OR REDUCED ENGINE POWER MODE DUE TO DIAGNOSTIC TROUBLE CODES P0120, P0220, P1516 AND/OR P1518. THIS CONDITION IS NORMALLY VERY INTERMITTENT. *TT Read More »
BUICK/CADILLAC/CHEVROLET/GMC/HUMMER/PONTIAC/SAAB: OIL CONSUMPTION AND/OR EXHAUST SMOKE-POSSIBLE PCV BAFFLE OR LIFTER CONCERN. UPON INSPECTION, OBVIOUS OIL WILL BE FOUND IN THE INTAKE MANIFOLD AND/OR PCV VACUUM TUBE. Read More »
14423 - SPECIAL COVERAGE. SOME VEHICLES CONTAIN A FUEL TANK INLET CHECK VALVE (ICV) THAT COULD FRACTURE. THE ICV IS LOCATED ABOVE THE FULL FUEL LEVEL. Read More »
BUICK\CHEVROLET\GMC\OLDSMOBILE SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL COVERAGE ADJUSTMENT - FUEL TANK MODULAR RESERVOIR ASSEMBLY CORROSION. CSC LETTER WAS RECEIVED. UPDATED 11/6/08. Read More »
14423C - SPECIAL COVERAGE (REVISED SERVICE PROCEDURE). A FUEL TANK INLET CHECK VALVE (ICV) COULD FRACTURE. THE ICV IS LOCATED ABOVE THE FULL FUEL LEVEL. Read More »
14423B - SPECIAL COVERAGE (REVISED PART INFORMATION AND SERVICE PROCEDURE). A FUEL TANK INLET CHECK VALVE (ICV) COULD FRACTURE. THE ICV IS LOCATED ABOVE THE FULL FUEL LEVEL. Read More »
14423A - SPECIAL COVERAGE (REVISED PART INFORMATION). SOME 2004 MODEL YEAR BUICK RAINIER, 2003-2004 MODEL YEAR CHEVROLET SSR, 2002-2004 MODEL YEAR CHEVROLET TRAILBLAZER, CHEVROLET TRAILBLAZER EXT, GMC ENVOY, GMC ENVOY XL, AND OLDSMOBILE ... Read More »
14423 - SPECIAL COVERAGE. SOME VEHICLES CONTAIN A FUEL TANK INLET CHECK VALVE (ICV) THAT COULD FRACTURE. THE ICV IS LOCATED ABOVE THE FULL FUEL LEVEL. Read More »
BUICK\CHEVROLET\GMC\OLDSMOBILE SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL COVERAGE ADJUSTMENT - FUEL TANK MODULAR RESERVOIR ASSEMBLY CORROSION. CSC LETTER WAS RECEIVED. UPDATED 11/6/08. Read More »
PRODUCT FIELD ACTION 03012. VEHICLES ARE EQUIPPED WITH A MECHANICAL OVERRIDE THAT COULD ALLOW THE IGNITION KEY TO BE REMOVED WITH THE SHIFT LEVER IN A POSITION OTHER THAN PARK. Read More »
4L60E/4L65E INTERMITTENT NEUTRAL CONDITION WHILE ACCELERATING FROM A STOP OR WHILE DRIVING. *TT 1999-2006 GM CARS, LIGHT DUTY TRUCKS AND UTILITIES. *TT Read More »
THE SERVICE ENGINE SOON LAMP IS ILLUMINATED, NO 3RD AND 4TH GEAR, THE TRANSMISSION DOES NOT SHIFT CORRECTLY, THE TRANSMISSION FEELS LIKE IT SHIFTS TO NEUTRAL OR A LOSS OF DRIVE OCCURS. *TT Read More »
TRANSMISSION SLIPPING OR TORQUE CONVERTER CLUTCH (TCC) INOPERATIVE WITH NO SERVICE ENGINE SOON (SES) LIGHT DISPLAYED AND NO DIAGNOSTIC TROUBLE CODE (DTC) P1870. *TT UPDATE. *TT Read More »
SOME CUSTOMERS MAY COMMENT THAT THE 4WD/AWD INDICATOR LIGHTS ON THE SELECTOR SWITCH DO NOT WORK OR THE 4WD/AWD SYSTEM MAY BE INOPERATIVE. *TT Read More »
POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES
GMC: FLUID LEAK FROM TRANSMISSION OIL COOLER LINES DUE TO CORROSION. ALL 2000-2006 LIGHT DUTY TRUCKS EQUIPPED WITH THE LIGHT DUTY AUTOMATIC TRANSMISSION. *PE Read More »
SERVICE 4WD INDICATOR ILLUMINATED, DIAGNOSTIC TROUBLE CODE (DTC) B2725 SET, TRANSFER CASE SELECTOR SWITCH IS IN ONE POSITION - INDICATOR LAMP INDICATES ANOTHER RANGE IS SELECTED. *TT Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE AN ONSTAR SYSTEM THAT WILL NOT POWER UP. TECHNICIAN SHOULD TURN OFF THE IGNITION AND CANCEL RETAINED ACCESSORY POWER. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN IF UNABLE TO PLACE AN ONSTAR CALL IN THE IGNITION ON MODE AFTER THE ONSTAR CANADA UPGRADE, TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER ONSTAR GROUP FOR FURTHER ASSISTANCE. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON REPAIRING THE CONCERN. A CUSTOMER MAY IDENTIFY A CONCERN OF UNABLE TO REACTIVATE A VEHICLE'S ONSTAR THAT HAS BEEN PREVIOUSLY DISABLED BY ONSTAR. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC DRAIN TEST FOR THE ONSTAR MODULE. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC DRAIN TEST FOR THE ONSTAR MODULE. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THE STEPS NEEDED TO DIAGNOSE AND REPAIR THE VEHICLES THAT MAY HAVE UNWANTED OR PHANTOM PHONE CALLS. Read More »
PROPER CONNECTION INFORMATION TO AVOID BLOWN 125 AMP FUSE AND VARIOUS INTERIOR ELECTRICAL SYSTEM CONDITIONS WHEN JUMP STARTING VEHICLE. *TT Read More »
VARIOUS INTERIOR ELECTRICAL CONCERNS, IP GAUGES/LIGHTING INOPERATIVE, HVAC CONTROLS INOPERATIVE, BLOWER MOTOR INOPERATIVE, RADIO INOPERATIVE, FLASHER INOPERATIVE. *TT Read More »
MULTIPLE ELECTRICAL CONCERNS AND DIAGNOSTIC TROUBLE CODE U1064. VARIOUS MODELS INCLUDING 2005 BUICK RAINIER AND 2005 CHEVROLET TRAILBLAZER. *TT Read More »
SERVICE ENGINE SOON LIGHT AND REDUCED ENGINE POWER WITH A DIAGNOSTIC TROUBLE CODE P1516. DIAGNOSTIC TROUBLE CODES P0120, P0220, P1514, P1515, P1518 AND P2135 MAY ALSO BE PRESENT. *TT Read More »
ENGINE STALLS WHEN AIR CONDITIONING IS TURNED ON AT IDLE. (TO INCLUDE 2005 CHEVROLET TRAILBLAZER, 2005 OLDSMOBILE BRAVADA, AND BUICK RAINIER) *SC UPDATED 01-26-07. *KB Read More »
REDUCED ENGINE POWER MESSAGE AND/OR CHECK ENGINE LIGHT WITH ANY COMBINATION OF THE FOLLOWING DIAGNOSTIC TROUBLE CODES: P0107, P0112, P0452, P1120, P1220, P1221, P1271, P1275, P1280, P1481, P1515, P1540, P1633, P1635, P1639 AND P1682 ... Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC DRAIN TEST FOR THE ONSTAR MODULE. Read More »
THE PURPOSE OF THIS MESSAGE IS TO PROVIDE INFORMATION ABOUT A NEW PRODUCT EMISSION RECALL. THE RECALL NUMBER OF 03042. THIS RECALL IS FOR VEHICLES IN DEALER INVENTORY ONLY. Read More »
WHEN ATTEMPTING TO TURN THE KEY TO START THE VEHICLE, YOU MAY EXPERIENCE HARD OR INTERMITTENT MECHANICAL BINDING IN THE IGNITION CYLINDER. *TT Read More »
ONE OF THE FOLLOWING CONCERNS WHEN PROGRAMMING THE MILEAGE OR THE HOURS INTO AN EXCHANGE INSTRUMENT PANEL CLUSTER THAT IS RECEIVED FROM AN ELECTRONIC SERVICE CENTER (ESC). *NJ Read More »
SPECIAL POLICY ADJUSTMENT - TAIL LAMP/STOP LAMP INOPERATIVE. ANSWERS TO ASSIST IN RESPONDING TO CUSTOMER INQUIRIES. *MJ THIS IS THE FIRST PHASE WHICH WAS RELEASED JUNE 3, 2004. *TT THIS IS THE SECOND PHASE - PHASE II. Read More »
GM: BLOWER INOPERATIVE AFTER CONTROL MODULE REPLACEMENT. THIS MAY OCCUR IF THE SPEED IS SET TO ANY SPEED POSITION, EXCEPT FOR LOW, WHEN THE KEY IS TURNED OFF. UPON NEST KEY UP, THE BLOWER MOTOR MAY BE INOPERATIVE. Read More »
GM: THERE ARE SEAT BELT PROBLEMS: DIFFICULTY LATCHING AND UNLATCHING BUCKLE. BUCKLE RELEASE BUTTON IS STICKING. SEAT BELT WARNING LIGHT ILLUMINATED. LIKELY CAUSED BY STICKY BEVERAGES THAT ARE SPILLED INTO THE BUCKLE ASSEMBLY. Read More »
GM: THERE ARE SEAT BELT PROBLEMS: DIFFICULTY LATCHING AND UNLATCHING BUCKLE. BUCKLE RELEASE BUTTON IS STICKING. SEAT BELT WARNING LIGHT ILLUMINATED. LIKELY CAUSED BY STICKY BEVERAGES THAT ARE SPILLED INTO THE BUCKLE ASSEMBLY. Read More »
PAINT CHIPPING BEHIND FRONT WHEELS/FRONT OF REAR WHEELS, DAMAGED LOWER DOOR/CLADDING AND ROCKER PANELS. *TT THIS SERVICE BULLETIN REPLACES 0308111002. *EH UPDATE. *TT Read More »
THE LIFT GATE, OR LIFT GATE GLASS, BINDS WHEN OPENING OR DOES NOT OPEN COMPLETELY BECAUSE OF CENTER HIGH MOUNTED STOP LAMP OR CHIMSEL APPLIQUE HITS THE ROOF OF THE VEHICLE. *TT *JB Read More »
THE LIFTGATE OR LIFTGATE GLASS BINDS WHEN OPENING OR DOES NOT OPEN COMPLETELY BECAUSE THE CENTER HIGH MOUNTED STOP LAMP (CHMSL) APPLIQUE HITS THE ROOF OF THE VEHICLE. *TT Read More »
GENERAL MOTORS: INFORMATION PROVIDED BY BULLETIN FOR ALL 2012 AND PRIOR GENERAL MOTOR TRUCKS AND PASSENGER VEHICLES REGARDING THE ADJUSTABLE COMFORT AND CUSTOM UPHOLSTERY OF THE DRIVER AND THE PASSENGER HEAD RESTRAINT. 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 »
14423 - SPECIAL COVERAGE. SOME VEHICLES CONTAIN A FUEL TANK INLET CHECK VALVE (ICV) THAT COULD FRACTURE. THE ICV IS LOCATED ABOVE THE FULL FUEL LEVEL. Read More »
BUICK/SAAB/CHEVROLET/HUMMER/GMC: SOME VEHICLES ARE EXPERIENCING, AT A COLD START FOR ENGINES, REDUCTION IN ENGINE POWER AND SES LIGHT, WHEN TEMPERATURES ARE -10F (-23C) AND ALSO REAR/FRONT CRANK SEAL, CAM COVER GASKET AND DIPSTICK TUBE ... Read More »
THIS MESSAGE IS TO PROVIDE DEALERS WITH AN AWARENESS OF TWO NEW COMMANDS AVAILABLE VIA VOICE RECOGNITION IN THE ONSTAR GENERATION FIVE EQUIPPED VEHICLES. THE TWO COMMANDS ARE ONSTAR AND EMERGENCY. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON REPAIRING THE CONCERN. A CUSTOMER MAY IDENTIFY A CONCERN OF UNABLE TO REACTIVATE A VEHICLE'S ONSTAR THAT HAS BEEN PREVIOUSLY DISABLED BY ONSTAR. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THE STEPS NEEDED TO DIAGNOSE AND REPAIR THE VEHICLES THAT MAY HAVE UNWANTED OR PHANTOM PHONE CALLS. Read More »
BUICK\CADILLAC\CHEVROLET\GMC\HUMMER\OLDSMOBILE\PONTIAC\SAAB\SATURN SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL COVERAGE ADJUSTMENT-ANALOG ONSTAR DEACTIVATION. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN. THE VEHICLE'S XM RADIO ONLY HAS XM PREVEIW CHANNELS. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN IF UNABLE TO PLACE AN ONSTAR CALL IN THE IGNITION ON MODE AFTER THE ONSTAR CANADA UPGRADE, TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER ONSTAR GROUP FOR FURTHER ASSISTANCE. Read More »
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS FOR DIAGNOSING THE CONCERN. THE VEHICLE MAY BE UNABLE TO CONNECT TO ONSTAR USING THE WHITE, BLUE OR RED ONSTAR BUTTONS. Read More »
BUICK\CHEVROLET\GMC SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL COVERAGE ADJUSTMENT-ANALOG ONSTAR DEACTIVATION. CSC LETTER WAS RECEIVED. *PE Read More »
OIL LIFE SYSTEM RESET PROCEDURES-TRUCKS. BUICK TERAZZA 2005, GMC SIERRA DENALI 2002-2003, GMC B7 CHASSIS MEDIUM DUTY 2003-2005 AND GMC 560 C-SERIES 2003-2005 *SC Read More »
BUICK/CADILLAC/CHEVROLET/GMC/OLDSMOBILE: IF BLOWER MOTOR IS SET TO ANY SPEED POSITION AND WHEN KEY IS OFF, IT BECOMES INOPERATIVE AND MAY STILL BE INOPERATIVE AFTER KEY IS TURNED ON. *PE UPDATED ON 5/1/12. Read More »
AIR CONDITIONER LOW PRESSURE CYCLING SWITCH INTERMITTENTLY INOPERATIVE OR STUCK OPEN/ INTERMITTENT AIR CONDITIONER OPERATION AND/OR LOSS OF COLD AIR. *TT Read More »
THIS VME STATES THAT GM HAS DECIDED THAT CERTAIN VEHICLES DO NOT COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD 225 IN BOTH US AND CANADA BECAUSE THE OWNERS MANUAL DOES NOT INCLUDE THE LOCATION SYMBOLS FOR THE LOWER UNIVERSAL ANCHORAGE ... Read More »
IDL EMERGING ISSUES BROADCAST COVERING TOPICS SUCH AS THE ONSTAR, CALIFORNIA EMISSIONS, AN OVERVIEW OF THE EVAP OPERATION, WIRING ISSUES FOR THE SEATS, AND SHUTTER DURING PARKING LOT MANEUVERS. *TT Read More »
CUSTOMERS MAY COMMENT THAT THE SERVICE FOUR-WHEEL DRIVE / ALL-WHELL DRIVE INDICATOR ILLUMINATED OR THE FOUR-WHEEL DRIVE / ALL-WHEEL DRIVE IS INOPERATIVE. *TT Read More »
