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Service bulletins for the 2002 Chevrolet Trailblazer

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

643 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
36562005-10-20. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR. REPEAT REAR BLOWER MOTOR FAILURE OR INOPERATIVE. *TT UPDATED 12/5/08. *PE UPDATED 08/06/2012 *JS
3420A2005-10-20. Service bulletin. POWER TRAIN. PING, POP OR CLICK NOISE FROM UNDER THE REAR. *SC
36802005-09-21. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. AUTOMATIC HEADLAMP DEFEAT INOPERATIVE AFTER BCM REPLACEMENT. *TT
7022005-09-09. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE:HINGE AND ATTACHMENTS. UNLOCKING LIFTGATE LATCH. GM TECH LINKS. 2002 AND NEWER CHEVROL TRAILBLAZER, GMC ENVOY, OLDSMOBILE BRAVADA AND BUICK RAINER. *TT
5102005-09-03. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. INTERMITTENT DEAD BATTERY. *SC
13632005-05-17. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:AUXILLARY TANK. FUEL TANK INLET CHECK VALVE FRACTURE. *EH
0508420012005-05-14. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. DIAGNOSTIC INFORMATION ON HEADLAMPS FLICKER OR MOMENTARILY DIM WHILE DRIVING. *TT
0506040142005-05-13. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. DIAGNOSTIC AIDS FOR DIAGNOSTIC TROUBLE CODES P0440, P0455 AND/OR P0442 - EVAPORATIVE EMISSION (EVAP) SYSTEM LEAK. *TT
200505772005-05-13. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY. FUEL TANK INLET CHECK VALVE FRACTURE. *EH
32322005-05-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 1999 - 2005 GEN II COLD ENGINE MISFIRE AT IDLE WITH POSSIBLE P0171 AND/OR P0174. *TT
33512005-05-11. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). INTERMITTENT MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODE (DTC) C0374 OR ERRATIC 4WD/AWD OPERATION. *TT
070120042005-04-29. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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
040872005-04-27. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS. TAIL LAMP THAT MAY BECOME INOPERATIVE PREMATURELY. *EH
33002005-04-21. Service bulletin. POWER TRAIN:DRIVELINE. 4WD MODELS WITH NOISE, VIBRATION ON DRY PAVEMENT. *EH
33732005-04-21. Service bulletin. AIR BAGS. SIR LIGHT ON STEADY AFTER BULB TEST AND NO DIAGNOSTIC TROUBLE CODES (DTCS). *TT
33742005-04-21. Service bulletin. SUSPENSION. UNABLE TO ACHIEVE ALIGNMENT SPECIFICATIONS AFTER CAMPAIGN 01034. *TT
33712005-04-20. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE NO CRANK NO START WITH POSSIBLE (DTCS) DIAGNOSTIC TROUBLE CODES P0116 AND/OR P1682. *TT
33512005-04-20. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER. HEATED SEAT OPERATION CLARIFICATION. *TT
3317A2005-04-20. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. HEADLAMPS FLICKER OR DIM WHILE DRIVING. *TT
0501380012005-04-19. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. NEW ESSENTIAL TOOL FOR HVAC MODE DOOR ACTUATOR REPLACEMENT. *EH
3300C2005-04-18. Service bulletin. ELECTRICAL SYSTEM:HORN. APPLICATION OF HORN AT HORN PAD INOPERATIVE. RKE FUNCTION FOR PANIC ALARM WORKS. *TT
32852005-04-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. A ROUGH IDLE, SERVICE ENGINE SOON LIGHT, REDUCED ENGINE POWER AND DIAGNOSTIC TROUBLE CODES P0507 AND P1514. *TT
112020032005-04-13. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. RATTLE NOISE UNDERNEATH THE VEHICLE OR AN AUTOMATIC TRANSMISSION FLUID LEAK. *EH
070820042005-04-12. Service bulletin. ENGINE AND ENGINE COOLING. 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
070620042005-04-12. Service bulletin. VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR. WATER SEEP INTO THE WINDSHIELD WIPER MODULE. *EH

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.