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Service bulletins for the 2004 GMC Sierra

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.

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

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Bulletins, newest first
0408500072004-08-17. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER. SERVICE INFORMATION FOR FRONT HEATED SEAT INOPERATIVE/COLD. *MJ
040525002B2004-08-13. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE. ANTI-LOCK BRAKE SYSTEM (ABS) LIGHT ON, DIAGNOSTIC TROUBLE CODES (DTCS) C0265, C0201, U1041 SET AND/OR LOSS OF COMMUNICATION WITH BRAKE MODULE. *TT UPDATE. *TT
0404950012004-08-12. Service bulletin. POWER TRAIN:DRIVELINE:DRIVESHAFT. REVISED WHEEL DRIVE SHAFT NUT TORQUE SPECIFICATION. *TT
0308640102004-08-03. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. OUTSIDE REARVIEW MIRRORS MAY BLOW IN AT HIGHWAY SPEEDS OR POWER FOLDING FEATURE APPEARS INOPERATIVE. ALSO TO INCLUDE 2005 MODELS. *TT
040089020A2004-08-02. Service bulletin. UNKNOWN OR OTHER. PRE-DELIVERY AND SERVICE GUIDE - PARALLEL HYBRID TRUCK. *TT UPDATED *EH
0406040072004-08-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON (SES) LIGHT, P0087, P0093, P1093, LOW POWER, NO START, HARD START, FUEL IN CRANKCASE. *TT
00823A2004-07-19. Service bulletin. STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID. POWER STEERING FLUID LEAKING AT HYDRAULIC BRAKE BOOSTER. *TT
013532004-07-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE MISFIRE DUE TO INJECTOR FRETTING CORROSION. *TT
00872A2004-07-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL PAN OR OIL COOLER LINE LEAK ON GEN III V-8 ENGINES EQUIPPED WITH AN OIL COOLER. *TT
01250C2004-07-14. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. BATTERY OR CHARGE INDICATOR LIGHT REMAINS ON FOR UP TO 30 SECONDS AFTER A COLD START AND ENGINE RUNNING. *TT
040392004-07-13. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. CHEVROLET GMC SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL POLICY ADJUSTMENT - INJECTORS - REPLACE. *MJ UPDATED 2/21/08. *NJ CSC LETTER WAS RECEIVED. UPDATED 3/5/10. *PE
01188A2004-07-13. Service bulletin. EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS:UNIT. UNABLE TO LOCATE EMERGENCY LIGHT RELAY AND/OR BLUNT CUT WIRES. *TT
019272004-07-13. Service bulletin. ELECTRICAL SYSTEM. A NO CHARGE CONDITION WITH DIAGNOSTIC TROUBLE CODE (DTC) P0380, P0621. *TT
009932004-07-12. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. OUTSIDE REARVIEW MIRROR GLASS MAY CRACK. *TT
008562004-07-12. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. ALLISON LCT1000 OIL PUMP WHINE, BUZZ ON COLD START. *TT
020892004-07-12. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM. INACCURATE FUEL GAUGE READINGS AND/OR ENGINE STALL. SERVICE VME. *TT
020692004-07-10. Service bulletin. POWER TRAIN. ALLISON LCT1000 RANGE INHIBIT AND/OR WILL NOT MOVE. *TT
020922004-07-09. Service bulletin. ENGINE AND ENGINE COOLING. GURGLE NOISE MAY BE HEARD FROM THE ENGINE COOLANT COMPARTMENT ON TRUCKS BUILT WITH RPO HP2 PARALLEL HYBRID SYSTEM. *TT
020552004-07-09. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE OIL IN THE TURBO CHARGE AIR COOLER PIPES AND HOSES. *TT
020522004-07-09. Service bulletin. STRUCTURE. NOISE COMING FROM INSTRUMENT PANEL CLUSTER OR TACHOMETER. *TT
020512004-07-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INTERMITTENT SERVICE ENGINE SOON (SES) LIGHT COMES ON AND CODE P0700 ALONG WITH DIAGNOSTIC TROUBLE CODE P0742 STORED. *TT
007862004-07-08. Service bulletin. VEHICLE SPEED CONTROL:ACCELERATOR PEDAL. BUZZ NOISE AND VIRBATION IN THE ACCELERATOR PEDAL AT APPROX. 10 MPH ON START UP. *MJ
006772004-07-08. Service bulletin. UNKNOWN OR OTHER. SNOW PLOW PREP PACKAGE INFORMATION - SERVICE VME. *MJ
01060A2004-07-08. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. ROOF BEACON SWITCH LEFT ON CAUSING BATTERY DRAW. GMC GMT 800. *MJ 2005 MODELS ADDED. *TT
015862004-07-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 8.1L CHANGES IN HEADS, BOLTS AND GASKET FOR FOR 2004 1/2 ENGINES. VARIOUS MODELS INCLUDING THE CHEVROLET AND GMC 2500HD/3500 MY2001-2004 AND 2001, 2002, AND 2003 GMT 560. *MJ

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