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Service bulletins for the 2004 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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
0506010342006-01-12. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE OIL LEAK AT REAR COVER ASSEMBLY AREA. *TT
0507300312006-01-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 4L60-E AUTOMATIC TRANSMISSION TORQUE CONVERTER CLUTCH (TCC) SHUDDER, WATER IN TRANSMISSION (REPAIR TRANSMISSION AND REPLACE TRANSMISSION FILLER TUBE, LEVEL INDICATOR AND SEAL). *AK
37792006-01-09. Service bulletin. SERVICE BRAKES, HYDRAULIC. SQUEAK NOISE ON BRAKE APPLY. *TT
36142006-01-06. Service bulletin. ENGINE AND ENGINE COOLING. P0300 DUE TO RANDOM MISFIRES NOT FELT - POSSIBLE ACCESSORY PULLEY. *TT
37662006-01-06. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR. FRONT BLOWER INOPERATIVE STAY RUNNING DURING LOW AMBIENT TEMPERATURE. *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
05-04-21-0032005-11-09. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). SERVICE 4WD LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE (DTC) C0374 SET. *TT UPDATED 10/05/07. *NJ INSPECT WIRING HARNESS TO TRANSFER CASE SPEED SENSORS, REPLACE WIRING HARNESS. UPDATED 7/18/08 *PE
0404210042005-11-08. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). 4WD SWITCH INDICATOR LIGHTS FLASHING, 4WD INOPERATIVE, DIAGNOSTIC TROUBLE CODES C0327, P0550 SET. *TT
0402320072005-11-08. Service bulletin. STEERING. STEERING SYSTEM MOAN, GROAN, SHUDDER AND/OR VIBRATION TYPE NOISE DURING LOW SPEED TURNING MANEUVERS. *TT
0506010142005-11-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL LEAK UNDER EXTREME COLD TEMPERATURES (-34 DEGREES C) (-30 DEGREES F) OR COLDER). *TT
35162005-11-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. VIBRATION FELT AND HEARD AT LOW RPM DURING PARKING LOT MANEUVERS. *TT
0507300212005-11-05. Service bulletin. ELECTRICAL SYSTEM:IGNITION:SWITCH. IGNITION KEY WILL NOT REMOVE FROM IGNITION LOCK CYLINDER. *TT
0501380122005-11-04. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. EI05082 - LOSS OF BLOWER MOTOR SPEEDS EXCEPT FOR HIGH SPEED OR INOPERATIVE. *TT UPDATED. *KB UPDATED *KB
0502350062005-11-04. Service bulletin. STEERING. HISS/RUSH NOISE FROM STEERING (STRG) COLUMN AREA. *TT
0305230022005-11-04. Service bulletin. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER. REVISED FRONT BRAKE CALIPER BRACKET MOUNTING BOLT FASTENER TIGHTENING SPECIFICATION. *TT
05-03-08-0072005-11-04. Service bulletin. SUSPENSION. RATTLE, CLUNK, POP, SNAP NOISE FROM FRONT AND/OR REAR SUSPENSION WHILE DRIVING OVER ROUGH, UNEVEN, WASH BOARD ROAD SURFACES. *TT (REPLACE APPROPRIATE STABILIZER LINK(S)). UPDATED 7/11/08. *NJ
05081100042005-11-03. Service bulletin. STRUCTURE:BODY. CARGO COVER HANDLE BROKEN. *TT
34242005-11-02. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). ELECTRONIC TRANSFER CASE UNABLE TO COMPLETE SHIFT. *TT
3110C2005-10-29. Service bulletin. VISIBILITY:WINDSHIELD WIPER/WASHER. WIPER/WASHER WILL NOT SHUT OFF OR OTHER POSSIBLE ISSUES. *TT
35222005-10-29. Service bulletin. FUEL SYSTEM, OTHER. SERVICE VME - FUEL SYSTEM LEAN DTCS P0101 P0171 P0174. *TT
3164A2005-10-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON LIGHT DUE A DIAGNOSTIC TROUBLE CODE P0606 DIAGNOSTIC TROUBLE CODE, OPERATE IN REDUCED ENGINE POWER MODE, AND POTENTIALLY STALL. *TT
33292005-10-28. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. SURGE, CHUGGLE OR BUCK WHILE DRIVING DOWNHILL (APPROXIMATELY 1500 - 3000 FEET ABOVE SEA LEVEL) AT HIGHWAY SPEEDS WITH THE CRUISE CONTROL ON. *TT
33352005-10-27. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS. SUPPLEMENT TO CAMPAIGN 04087 / SCREWS BREAK IN THE TAIL LAMP HOUSING. *SC
35772005-10-27. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY. NO CRANK NO START NO DIAGNOSTIC TROUBLE CODES. *TT
34052005-10-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE IS HARD TO START AFTER FILLING THE FUEL TANK. *TT

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