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Service bulletins for the 2006 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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
PIP-4573-B2016-01-16. Service bulletin. EQUIPMENT; ENGINE. 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 WILL BE LEAKING OIL. MODEL 2004-07 RAINIER, 2002-09 TRAIL BLAZER, ENVOY, 2004-12 COLORADO, CANYON, 2006-12 H3, 2005-09 97X. *PE
PIP3694F2015-06-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. GENERAL MOTORS 2004-2012 CHEVROLET TRAIL BLAZER , CHEVROLET COLORADO, GMC ENVOY , GMC CANYON, HUMMER H3. BULLETIN REGARDING BELT NOISE OF ENGINE, ROUGH IDLE. *LJ
PIP-4568K2011-06-08. Service bulletin. ENGINE AND ENGINE COOLING. GM: SERVICE ENGINE SOON LIGHT IS ON WITH A MISFIRE AND A POSSIBLE TICK NOISE. *RM
PIP-4138K2011-06-08. Service bulletin. ENGINE AND ENGINE COOLING. GM: THE SERVICE ENGINE SOON LIGHT IS ON, THERE IS ALSO A MISFIRE OR ENGINE NOISE. THERE ARE MULTIPLE POSSIBLE CAUSES. *RM
PIP-4492P2011-03-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). 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. *PE UPDATED 3/21/11. *PE UPDATED 5/9/11. *PE UPDATED 5/25/11. *PE UPDATED 06/16/2011. *KB UPDATED A SECOND TIME ON 06/16/2011. *KB UPDATED 6/27/11. *PE
RB-101492010-08-20. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ENGINE AND ENGINE COOLING:ENGINE. BUICK CHEVROLET GMC SATURN SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. MALFUNCTION INDICATOR LIGHT MAY NOT ILLUMINATE FOR SECONDARY AIR INJECTION SYSTEM FAULTS. MODELS LUCERNE, TRAILBLAZER, ENVOY, AND ION. *PE
0601390022007-07-24. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. FRONT BLOWER MOTOR INOPERATIVE OR MAY NOT SHUT OFF IN EXTREMELY LOW AMBIENT TEMPERATURE CONDITIONS. *KB
0706040032007-03-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LSJ, L61, LK5, L52, LL8 ENGINE - REDUCED ENGINE POWER, MIL/SES LIGHT, DTC P1516, P2135, P2138. *KB
0606040482007-01-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 4.2L LL8 ENGINE FLASHING AND/OR MIL/SES LIGHT. ROUGH IDLE, MISFIRE. DTC P0300, P0301, P0302, P0303, P0304, P0305, AND P0306. *KB
0606020032006-03-20. Service bulletin. ENGINE AND ENGINE COOLING. 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
36932006-03-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. A ROUGH IDLE/RUNNING CONCERN MAY BE ENCOUNTERED WITH A P0014 AND/OR P0017 DTC. *TT
3693A2006-03-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ROUGH IDLE WITH DTC P0014 AND/OR P0017 - INSPECT CAM ACTUATOR SOLENOID SCREENS AND CRANKSHAFT END PLAY. *TT
38572006-02-21. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. SUPPLEMENT TO BULLETIN 05-01-37-002A, POOR REAR HEAT PERFORMANCE . *AK
0506020122006-01-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON (SES) OR CHECK ENGINE LIGHT ON, DTC P0526, P0480, P1481, AND P1484 SET. *TT UPDATED. *KB
0506010342006-01-12. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE OIL LEAK AT REAR COVER ASSEMBLY AREA. *TT
36142006-01-06. Service bulletin. ENGINE AND ENGINE COOLING. P0300 DUE TO RANDOM MISFIRES NOT FELT - POSSIBLE ACCESSORY PULLEY. *TT
36262006-01-06. Service bulletin. ENGINE AND ENGINE COOLING. SES LIGHT WITH P0613 OR P0614 ON TECH 2 - DTCS NOT IN SI. *TT
37752006-01-06. Service bulletin. ENGINE AND ENGINE COOLING. WHINE NOISE FROM ENGINE AREA ON DECELERATION. *TT
36372006-01-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. EV COOLING FAN NOISE CHARACTERISTICS - DO NOT REPLACE EV FAN. *TT
0506010262005-12-02. Service bulletin. ENGINE AND ENGINE COOLING. 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
31542004-11-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MISFIRE, BUMP OR MULTIPLE BUMPS AFTER A 1-2 UPSHIFT. *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

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