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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
010162004-07-01. Service bulletin. ELECTRICAL SYSTEM. ANTI-LOCK BRAKE SYSTEM (ABS) LIGHT ON, RED BRAKE LIGHT ON, SERVICE 4WD LIGHT ON, HVAC BLOWER MOTOR INOPERATIVE. *TT
01181C2004-06-30. Service bulletin. ELECTRICAL SYSTEM. DIAGNOSTIC TROUBLE CODE (DTC) P0172. 4.2 LL8 ENGINE. *TT *MJ
021172004-06-23. Service bulletin. POWER TRAIN. TCCM WILL NOT PROGRAM THROUGH TIS. *MJ
040172004-06-22. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS. SPECIAL POLICY ADJUSTMENT - TAIL LAMP/STOP LAMP INOPERATIVE. ANSWERS TO ASSIST IN RESPONDING TO CUSTOMER INQUIRIES. *MJ THIS IS THE FIRST PHASE WHICH WAS RELEASED JUNE 3, 2004. *TT THIS IS THE SECOND PHASE - PHASE II. *TT PHASE III. *TT
00686B2004-06-09. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. AUTOMATIC VOLUME FEATURE DIAGNOSIS ON THE UQA BOSE RADIO. *TT
00949C2004-06-09. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE:HINGE AND ATTACHMENTS. THE LIFTGATE OR LIFTGATE GLASS BINDS WHEN OPENING OR DOES NOT OPEN COMPLETELY BECAUSE THE CENTER HIGH MOUNTED STOP LAMP (CHMSL) APPLIQUE HITS THE ROOF OF THE VEHICLE. *TT
00372D2004-06-09. Service bulletin. EQUIPMENT:ELECTRICAL. ONSTAR SYSTEM IS ATTEMPTING AND/OR COMPLETING PHONE CALLS WHICH THE OPERATOR OF THE VEHICLE DID NOT INITIATE. *TT
008592004-06-09. Service bulletin. ELECTRICAL SYSTEM. DIAGNOSTIC TROUBLE CODE (DTC) C0327 WITH OR WITHOUT ADDITIONAL DIAGNOSTIC TROUBLE CODES (DTCS) SETTING. *TT *MJ
01968A2004-06-09. Service bulletin. ELECTRICAL SYSTEM. DIAGNOSTIC TROUBLE CODE (DTC) P0171. *TT
01115A2004-06-09. Service bulletin. SUSPENSION. CLUNK, RATTLE NOISE FROM FRONT OF VEHICLE OVER BUMPS. *TT
016622004-06-04. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. XM ERROR ON A RADIO DISPLAY. *TT
016722004-06-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL PAN DRAIN PLUG THREADS - INFORMATION. *TT
015992004-06-04. Service bulletin. POWER TRAIN. 4L60E, 4L65E FORWARD AND LOW REVERSE WAVED STEEL CLUTCH PLATE APPEARANCE CHANGE. *TT
016542004-06-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SQUAWK OR GRUNT NOISE THAT OCCURS ON THE 2-3 UPSHIFT ON VEHICLES WITH 4L60E - M30, 4L60E M32 TRANSMISSION. *TT
016612004-06-04. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). XM CHANNEL ZERO NOT AVAILABLE ON CERTAIN VEHICLES EQUIPPED WITH NAVIGATION STYLE RADIOS. ALSO INCLUDING GMC DENALI 2004. *TT
019732004-06-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. HARSH SHIFTS FROM PARK TO DRIVE OR DRIVE TO REVERSE (GARAGE SHIFT). WORSE IN COLD AMBIENT TEMPERATURES. *NM
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
00411D2004-06-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LACK OF POWER AND ENGINE LIGHT ON (03-04 GMT 800,820 AND 830). *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
016232004-06-03. Service bulletin. ELECTRICAL SYSTEM. 4.2 LL8 ENGINE DIAGNOSTIC TROUBLE CODE P0016 OR P1345 WITH NO DRIVEABILITY SYMPTOMS.*MR
019582004-05-20. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. PRODUCT INFORMATION REGARDING RADIO PERSONALIZATION. *MR
020382004-05-20. Service bulletin. ELECTRICAL SYSTEM. DIAGNOSTIC TROUBLE CODE B1000. *MR
019172004-05-14. Service bulletin. ELECTRICAL SYSTEM. FALSE DIAGNOSTIC TROUBLE CODE (DTC) P1680. *TT
018162004-05-07. Service bulletin. ELECTRICAL SYSTEM. DIAGNOSTIC TROUBLE CODE P0130. *MR *TT
019252004-05-06. Service bulletin. ELECTRICAL SYSTEM. TECH 2 ENGINE DATA INCORRECT- GEN L-TERMINAL SIGNAL COMMAND DATA PARAMETER. *MR

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