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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

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Only bulletins with component: Transmission control module are shown. Show all

Bulletins, newest first
30612008-01-31. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). DTC C0327 WITH OR WITHOUT ADDITIONAL DTC'S SETTING. WITH FOUR WHEEL DRIVE (4WD) ONLY. *NJ
PIP-42902008-01-30. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). ENGINE SURGE OR STALL AT STOP AND/OR DTC P0742 POSSIBLE TCC APPLIED. EQUIPPED WITH ALLISON LCT1000 TRANSMISSION RPO M74 OR MW7. *NJ UPDATED 4/22/13. *PE
014832004-03-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). VEHICLE HAS NO PCM (POWER TRAIN CONTROL MODULE) COMMUNICATION WITH TECH 2. SIT BULLETIN 1400427. *TT
00938B2003-11-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). ALLISON LCT1000 REPEAT TRANSMISSION CONTROL MODULE (TCM) FAILURES WITH POSSIBLE MULTIPLE DIAGNOSTIC TROUBLE CODES (DTCS). *TT

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