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Service bulletins for the 2004 GMC Sonoma

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.

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

By type

By component

By trouble code

Bulletins, newest first
0506040212005-05-14. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. REVISED INSPECTION/MAINTENANCE (I/M) EVAPORATIVE EMISSION (EVAP) SYSTEM SET PROCEDURE. *TT
33002005-04-21. Service bulletin. POWER TRAIN:DRIVELINE. 4WD MODELS WITH NOISE, VIBRATION ON DRY PAVEMENT. *EH
070820042005-04-12. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. REAR AXLE WATER CONTAMINATION. *EH
0406030022005-03-11. Service bulletin. ENGINE AND ENGINE COOLING. DIAGNOSTIC INFORMATION FOR INTERMITTENT VEHICLE NO CRANK DEAD BATTERY. *EH
0406040062005-03-10. Service bulletin. ENGINE AND ENGINE COOLING. RUSH BUZZ HISS TYPE NOISE HEARD IN PASSENGER COMPARTMENT. *EH
0409410042005-02-12. Service bulletin. AIR BAGS. USE F ALTERNATE CONNECTOR FOR DRIVER FRONT AIRBAG DIAGNOSTICS DUE TO J 38715-100 ADAPTER NOT CONNECTING TO VEHICLE HARNESS AT STEERING COLUMN CONNECTOR. *TT
32272005-01-31. Service bulletin. STRUCTURE:BODY:TAILGATE. TAILGATE CABLE SLACK. THIS INCLUDES 1998-2006 CHEVROLET AND GMC FULL AND MID SIZE TRUCKS. *EH UPDATED. *KB
0404200032004-12-28. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. DIAGNOSTIC INFORMATION ON REAR AXLE VENT HOSE TO AVOID MOISTURE/WATER INTRUSION. *TT
0405230082004-12-28. Service bulletin. SERVICE BRAKES, HYDRAULIC. REVISED REAR ROTOR MINIMUM ALLOWABLE THICKNESS AFTER REFINISH SPECIFICATION. ALSO INCLUDES 2005 CHEVROLET BLAZER AND GMC JIMMY AND THE 2001 ISUZU ASCENDER (4WD ONLY). *TT
3176A2004-11-09. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HEAT COMING FROM VENTS WITH HVAC OFF. *TT
3170C2004-11-05. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. INSTRUMENT PANEL CLUSTER (IPC) INTERIOR AND/OR HEAD LAMPS FLICKER. *TC
31362004-11-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THE 4L60E/4L65E AUTOMATIC TRANSMISSION SLIP CONDITION IN 2ND, 3RD, OR 4TH GEAR. ALSO TO INCLUDE THE PONTIAC GTO 2005. *TC
31302004-11-04. Service bulletin. ELECTRICAL SYSTEM. INSTRUMENT CLUSTER PRNDL INOPERATIVE AND OR BATTERY LIGHT ON. *SC
3031A2004-10-14. Service bulletin. ELECTRICAL SYSTEM. DRIVER INFORMATION CENTER (DIC) STAYS IN BULB CHECK. *TT
20102004-10-14. Service bulletin. INTERIOR LIGHTING. INSTRUMENT PANEL CLUSTER (IPC) INTERIOR HEAD LAMPS FLICKER. *TT
30482004-09-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. TIMING CHAIN TENSIONER BREAKPOINTS FOR SERVICE KIT OR PRODUCTION KIT. SUPPLEMENT TO 03-06-01-024B. *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
30162004-08-23. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. REAR AXLE WATER CONTAMINATION. *TT
013532004-07-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE MISFIRE DUE TO INJECTOR FRETTING CORROSION. *TT
00502B2004-07-15. Service bulletin. EXTERIOR LIGHTING. DAYTIME RUNNING LAMPS (DRLS) TURN OFF TEMPORARILY WHILE THE TURN SIGNALS ARE ACTIVATED. *TT
020862004-07-12. Service bulletin. POWER TRAIN. 4L60E, 4L65E INTERMITTENT NEUTRAL FROM A STOP OR STEADY SPEED. *TT
00700A2004-07-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 4.3L L35 ENGINE WIDE OPEN THROTTLE DIAGNOSTIC TROUBLE CODE (DTC) P0335, P0336, P0339. *TT *MJ
020102004-06-09. Service bulletin. ELECTRICAL SYSTEM. IPC (INSTRUMENT PANEL CLUSTER) INTERIOR HEAD LAMPS FLICKER ON 99-04 CHEVROLET, GMC AND CADILLAC FULL SIZE TRUCKS AND UTILITIES AS WELL AS OTHER MODELS. *TT
01485B2004-06-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. TIMING CHAIN TENSIONER BREAKPOINTS FOR SERVICE KIT OR PRODUCTION FIX. RATTLE-TYPE NOISE COMING FROM THE ENGINE AT APPROXIMATELY 1800 TO 2200 RPMS. 4.3L LU3 L35 ENGINE. *TT
016182004-06-04. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS. BUZZ, RATTLE, HISS NOISE COMING FROM IPC (INSTRUMENT PANEL CLUSTER) AND/OR CAN BE HEARD IN PASSENGER COMPARTMENT. *TT

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