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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.

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By component

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Bulletins, newest first
0108660072004-11-22. Service bulletin. INTERIOR LIGHTING; STRUCTURE:BODY:HATCHBACK/LIFTGATE. CENTER HIGH-MOUNT STOP LAMP (CHMSL) APPLIQUE LOOSE (RE-TAPE APPLIQUE) *TT UPDATED 11/02/07 *NJ
30792004-11-17. Service bulletin. ELECTRICAL SYSTEM. INTERMITTENT P0483 DIAGNOSTIC TROUBLE CODE. *TT
30832004-11-17. Service bulletin. ELECTRICAL SYSTEM:IGNITION. KEY MAY NOT TURN OR BIND IN THE IGNITION. *TT
30562004-11-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. CHECK ENGINE LIGHT WITH A P0300 DUE TO 2-4 CYLINDERS MISFIRING ON THE SAME BANK OF THE ENGINE. *TT
30442004-11-17. Service bulletin. EQUIPMENT. GENERATION 5 ONSTAR STEERING WHEEL CONTROL FUNCTION. *TT
31542004-11-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MISFIRE, BUMP OR MULTIPLE BUMPS AFTER A 1-2 UPSHIFT. *TT
31792004-11-08. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. AUTOMATIC DUAL ZONE HVAC BATTERY DRAW SUPPLEMENT TO 02-01-39-007A. *TT
31782004-11-08. Service bulletin. SEAT BELTS:FRONT. DRIVER AND/OR PASSENGER FRONT SEAT BELTS LOCK UP IN RETRACTED POSITION. *TT
31722004-11-08. Service bulletin. ELECTRICAL SYSTEM. MULTIPLE ELECTRICAL CONCERNS AND DIAGNOSTIC TROUBLE CODE U1064. VARIOUS MODELS INCLUDING 2005 BUICK RAINIER AND 2005 CHEVROLET TRAILBLAZER. *TT
30952004-11-05. Service bulletin. VISIBILITY:GLASS, SIDE/REAR. OPERATION OF REAR GLASS RELEASE KEY CYLINDER. TO INCLUDE 2005 TRAILBLAZER AND BUICK RAINIER. *SC
3019A2004-11-05. Service bulletin. UNKNOWN OR OTHER. DIAGNOSTIC TROUBLE CODE P0171 . *SC SERVICE ENGINE SOON LIGHT DUE TO DIAGNOSTIC TROUBLE CODE P0171. *TT
30902004-11-05. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). UNABLE TO PERFORM SET UP NEW ONSTAR ON VEHICLES WITH GEN 6.05 HARDWARE. *SC
31042004-11-05. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. ONLY REPLACEMENT OF EVAPORATOR CORE OR PIPES FOR REAR HVAC. (TO INCLUDE 2005 CHEVROLET TRAILBLAZER) *SC
31082004-11-05. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE:HINGE AND ATTACHMENTS. FASTENER MISSING ON THE REAR CHMSL APPLIQUE. (TO INCLUDE 2005 CHEVROLET TRAILBLAZER AND 2005 BUICK RAINIER) *SC
3110A2004-11-05. Service bulletin. VISIBILITY:WINDSHIELD WIPER/WASHER; VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR. WASHER MOTOR FOR THE FRONT WIPERS CONTINUOUSLY RUNS WHILE THE KEY ON. *SC UPDATE. *TT
31132004-11-05. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). GEN 6 VEHICLES IN MOUNT AIRY, NC CANNOT CONNECT TO ONSTAR OR EMERGENCY SERVICES. *SC
31422004-11-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. BROKEN HEAD BOLT REPAIR. *TC
31162004-11-05. Service bulletin. ELECTRICAL SYSTEM. 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
31242004-11-05. Service bulletin. SUSPENSION. UPPER AND LOWER INTERMEDIATE SHAFT PARTS RESTRICTION. *SC
04017A2004-11-05. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS. TAIL LAMP/STOP LAMP(S) MAY BECOME INOPERATIVE. GM ADMINISTRATIVE MESSAGE. *NM
31352004-11-05. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE. CHMSL APPLIQUE CONTACTS ROOF WHEN OPENING REAR GATE/GLASS. (TO INCLUDE 2005 CHEVROLET TRAILBLAZER) (MT 370 ONLY) *SC
31062004-11-04. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. XM RADIO WAS WORKING PRIOR TO JULY 26, 2004 AND IT IS INOPERATIVE NOW. *JB
31202004-11-04. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). ONSTAR CENTER UNABLE TO PERFORM REMOTE DIAGNOSTIC. (2004-2005 CHEVROLET YUKON, 2005 CHEVROLET TRAILBLAZER, 2002, 2003, 2005 BUICK RAINIER, 2005 CHEVROLET EXPRESS VAN, AND 2005 CADILLAC SEVILLE) *SC
31382004-11-04. Service bulletin. ELECTRICAL SYSTEM. REDUCED POWER LIGHT ON AND DIAGNOSTIC TROUBLE CODE P1680 P1221 AND/OR P1271 STORED IN THE POWER CONTROL MODULE. *SC
31522004-11-03. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. BLOWER SPEED CHANGES ON ITS OWN. *TC UPDATE. *TT

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