WenmarOpen by Wenmar Pro

Service bulletins for the 2003 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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
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
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
01217B2004-07-07. Service bulletin. ELECTRICAL SYSTEM. ALLISON LCT1000 DIAGNOSTIC TROUBLE CODES (DTC) P1711, P0872 AFTER COMPLETING REPAIRS. *MJ
008952004-07-07. Service bulletin. ELECTRICAL SYSTEM. INSTRUNMENT PANEL CLUSTER (IPC) GAUGES INOPERATIVE AT TIMES WHILE CRANKING. *MJ
01267F2004-07-06. Service bulletin. ELECTRICAL SYSTEM. SERVICE 4WD LIGHT ON NO CODES BESIDES U1000 CODES OR C0550. *MJ
006322004-07-06. Service bulletin. ELECTRICAL SYSTEM. 4.3L L35 ENGINE-DIAGNOSTIC TROUBLE CODE P0300 BUT NO MISFIRE CAN FELT. *MJ
005732004-07-06. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. LOW AUDIO OUTPUT FROM SPEAKERS. *MJ
0206010222004-07-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INFORMATION ON ENGINE TICKING. *MJ
013302004-07-03. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. ALLISON LCT1000 BUZZ, MOAN NOISE AT 1400 RPM WITH THE 8.1 L18 GAS ENGINE. *TT
002662004-07-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LOSS OF POWER, HESITATES ON ACCELERATION ON 4.8, 5.3 AND 6.0 ENGINES COUPLED WITH THE 4L60E OR 4L65E TRANSMISSION. *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
019772004-07-02. Service bulletin. POWER TRAIN. ALLISON LCT1000 PRNDL FLASH AND/OR WILL NOT MOVE. *TT
01119A2004-07-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ROLL-OUT FOR THE GEN III SMALL BLOCK ENGINES WITH IRIDIUM SPARK PLUGS. ALSO INCLUDES 2003/2004 M/L VANS. *TT
00968A2004-07-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. 6.6L LB7 LLY DIESEL ENGINE WITH ROUGH, UNSTABLE, LOW IDLE SPEED OR STALL. *TT
00609B2004-06-30. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LOW POWER, WILL NOT GO OVER 2300 RPMS. 6.6L LB7 ENGINE. *TT
021132004-06-23. Service bulletin. POWER TRAIN. INTERMITTENT NO FORWARD OR REVERSE WITH POSSIBLY EITHER A FLASHING PRNDL DISPLAY OR A RANGE SHIFT INHIBITED MESSAGE. *TT
021162004-06-23. Service bulletin. POWER TRAIN:DRIVELINE. HIGHWAY SPEED VIBRATION ON K2500HD 4WD VEHICLES EQUIPPED WITH A 4L80E AUTOMATIC TRANSMISSION. *TT
01737A2004-06-10. Service bulletin. ELECTRICAL SYSTEM. POOR GROUND CONNECTION CAUSING DIAGNOSTIC TROUBLE CODE (DTC) C0265. *TT
00442A2004-06-09. Service bulletin. AIR BAGS. DUAL STAGE AIR BAG USED IN SINGLE STAGE APPLICATION. *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
00678B2004-06-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OVERHEATS ON VEHICLES EQUIPPED WITH RPO VYU SNOWPLOW PREP PACKAGE. *TT
01222A2004-06-09. Service bulletin. POWER TRAIN:AXLE HUBS. REPEAT REAR AXLE HUB SEAL LEAK. *TT
01919A2004-06-09. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. REPLACEMENT RADIO READS CAL ERROR, HAS NO AUDIO OR WILL NOT PROGRAM. *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

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