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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

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
35162005-11-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. VIBRATION FELT AND HEARD AT LOW RPM DURING PARKING LOT MANEUVERS. *TT
34242005-11-02. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). ELECTRONIC TRANSFER CASE UNABLE TO COMPLETE SHIFT. *TT
34442005-10-21. Service bulletin. POWER TRAIN. SERVICE VME-TCC SURGE OR SHUDDER, INVESTIGATION OF WATER INTRUSION INTO THE TRANSMISSION. *SC
3420A2005-10-20. Service bulletin. POWER TRAIN. PING, POP OR CLICK NOISE FROM UNDER THE REAR. *SC
33512005-05-11. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). INTERMITTENT MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODE (DTC) C0374 OR ERRATIC 4WD/AWD OPERATION. *TT
33002005-04-21. Service bulletin. POWER TRAIN:DRIVELINE. 4WD MODELS WITH NOISE, VIBRATION ON DRY PAVEMENT. *EH
112020032005-04-13. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. RATTLE NOISE UNDERNEATH THE VEHICLE OR AN AUTOMATIC TRANSMISSION FLUID LEAK. *EH
0407300412005-03-12. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SERVICE ENGINE SOON (SES) LIGHT ON, DIAGNOSTIC TROUBLE CODE (DTC) P0741, HARSH SHIFT, CRUISE CONTROL INOPERATIVE. *TT
0404190012005-03-11. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. DIAGNOSTIC TROUBLE CODE (DTC) C0379 SET, SERVICE 4WD LIGHT ON, 4WD INOPERATIVE. *TT
0407300222005-03-08. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. HARSH GARAGE SHIFT FROM PARK TO DRIVE OR FROM PARK TO REVERSE WITH TRANSMISSION FLUID AT COLD AMBIENT TEMPERATURES. *EH
31382005-02-01. Service bulletin. POWER TRAIN. REDUCED POWER LIGHT ON AND DIAGNOSTIC TROUBLE CODE P1680 P1221 AND OR P1271 STORED IN THE POWERTRAIN CONTROL MODULE. *EH
0407300352005-01-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. RELEASE OF REAR TRANSMISSION MOUNT SEPARATE FROM EXHAUST MOUNT. *TT
0407300022005-01-03. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. RATTLE TYPE NOISE COMING FROM UNDER THE VEHICLE. *TT
32222004-12-03. Service bulletin. SUSPENSION:FRONT:SPRINGS:COIL SPRINGS; POWER TRAIN. INTERMITTENT BOOM, RUMBLING NOISE AT HIGHWAY SPEED. *TT UPDATED 2/27/08. *NJ
31372004-12-02. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. SERVICE 4WD LIGHT ON AND NO COMMUNICATION WITH TRANSFER CASE CONTROL MODULE. *EH
31772004-12-02. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. REPEAT FRONT AXLE FLUID LEAK. *EH
31702004-12-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. HARSH 1-2 SHIFT. *EH
042020042004-09-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. HARSH PARK TO REVERSE OR PARK TO DRIVE GARAGE SHIFT ENGAGEMENT ESPECIALLY WHEN THE TRANSMISSION FLUID IS AT A LOW AMBIENT TEMPERATURE. GM VOICEMAIL EXPRESS. *TT
30022004-08-23. Service bulletin. POWER TRAIN. 4L60E/4L65E INTERMITTENT NEUTRAL CONDITION WHILE ACCELERATING FROM A STOP OR WHILE DRIVING. *TT 1999-2006 GM CARS, LIGHT DUTY TRUCKS AND UTILITIES. *TT
0404210012004-08-03. Service bulletin. POWER TRAIN:DRIVELINE. DELAYED ENGAGEMENT OF FRONT WHEELS DURING A SLIP CONDITION. *MJ
018432004-07-19. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). CALIBRATION FOR IMPROVED TRANSFER CASE OPERATION IN AWD MODE. *TT
020862004-07-12. Service bulletin. POWER TRAIN. 4L60E, 4L65E INTERMITTENT NEUTRAL FROM A STOP OR STEADY SPEED. *TT
020302004-07-09. Service bulletin. POWER TRAIN. PING, POP OR CLICK NOISE FROM THE PROPELLER SHAFT. SERVICE VME. *TT
021172004-06-23. Service bulletin. POWER TRAIN. TCCM WILL NOT PROGRAM THROUGH TIS. *MJ
015992004-06-04. Service bulletin. POWER TRAIN. 4L60E, 4L65E FORWARD AND LOW REVERSE WAVED STEEL CLUTCH PLATE APPEARANCE CHANGE. *TT

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