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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

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
0406030022005-03-11. Service bulletin. ENGINE AND ENGINE COOLING. DIAGNOSTIC INFORMATION FOR INTERMITTENT VEHICLE NO CRANK DEAD BATTERY. *EH
0406010222005-02-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. NEW CYLINDER BORE LINER/PISTON SLEEVE REPLACEMENT PROCEDURE. *TT
32092005-02-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. EXHAUST MOAN AT IDLE OR PARKING LOT MANEUVERS. *EH
32322005-01-28. Service bulletin. ENGINE AND ENGINE COOLING. MISFIRE AT IDLE COLD AND POSSIBLE P0171 AND OR P0174. *EH
0406020052005-01-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. HIGHER THAN NORMAL ENGINE COOLANT TEMPERATURE GAUGE READINGS. *TT
31502004-12-01. Service bulletin. ENGINE AND ENGINE COOLING. CYLINDER LINER REPLACEMENT INFORMATION - INLINE TRUCK ENGINES. *EH
31542004-11-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MISFIRE, BUMP OR MULTIPLE BUMPS AFTER A 1-2 UPSHIFT. *TT
31422004-11-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. BROKEN HEAD BOLT REPAIR. *TC
30772004-10-15. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. TICK NOISE AT IDLE. *TT
010120042004-10-07. Service bulletin. ENGINE AND ENGINE COOLING. HIGH COOLANT TEMPERATURE GAUGE READINGS DURING LOW RPM OPERATION. *TT
0406030052004-08-13. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE. PROPER CONNECTION INFORMATION TO AVOID BLOWN 125 AMP FUSE AND VARIOUS INTERIOR ELECTRICAL SYSTEM CONDITIONS WHEN JUMP STARTING VEHICLE. *TT
0406010152004-08-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. NEW DESIGN OIL PICK UP TUBE AND FRONT COVER. *MJ
013532004-07-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE MISFIRE DUE TO INJECTOR FRETTING CORROSION. *TT
00156A2004-07-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 4.2L LL8 ENGINE ROUGH IDLE - RUN POSSIBLE P1345 OR P0016. *MJ *TT
016722004-06-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL PAN DRAIN PLUG THREADS - INFORMATION. *TT
020232004-06-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INTERMITTENT NO CRANK NO START. SECURITY LIGHT MAY BE ON OR OFF. 4.2 LL8 ENGINE. *NM
016762004-06-03. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. 4.2 4L60E ENGINE COOLING FAN CONTACTS SHROUD AFTER REPLACING RADIATOR. *MR
030601028A2004-03-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INFORMATION ON CORRECT PISTON USAGE. *TT UPDATED *EH
00682A2004-02-27. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. PERCEIVED HIGH ENGINE RPM TRANSMISSION SLIP, DELAYED UPSHIFTS ON COLD START. SIT BULLETIN 1416476.
00540B2004-02-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL LEAK AT INTAKE GASKET. SIT BULLETIN 1412496. *TT
0810B2004-02-24. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. TICK NOISE AT IDLE. *TT
030604018A2004-02-10. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. COLD IDLE FLUCTUATION AT ALTITUDE, HESITATION ON ACCELERATION OR 1-2 UPSHIFT DELAY. *TT
010604052A2004-02-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ON-BOARD DIAGNOSTIC (OBD) SYSTEM IMPROVEMENTS - SERVICE ENGINE SOON LIGHT ON, DIAGNOSTIC TROUBLE CODE (DTC) P0014, P0116, OR P1683 SET, DELAYED TRANSMISSION DOWNSHIFT AND/OR EXCESSIVE FAN NOISE. *TT
0121032004-01-30. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. ENGINE OVERHEAT CONDITION WITH LITTLE OR NO HEATER OUTPUT. OASIS *TT
1007032004-01-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INTERMITTENT HESITATION, STUMBLE OR IDLE STALL WITHIN MINUTES OF STARTING AFTER THE VEHICLE HAS BEEN SITTING FOR SEVERAL HOURS. GM VOICEMAIL LOG. *TT

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