Service bulletins for the 2003 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.
682 on file from NHTSA, as of 2026-10-19.
About C0327 on the 2003 Chevrolet Trailblazer: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: C0327 are shown. Show all
| 3061 | 2008-01-31. 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 |
|---|---|
| 040421004 | 2005-11-08. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). 4WD SWITCH INDICATOR LIGHTS FLASHING, 4WD INOPERATIVE, DIAGNOSTIC TROUBLE CODES C0327, P0550 SET. *TT |
| 3061C | 2004-12-03. Service bulletin. ELECTRICAL SYSTEM. DIAGNOSTIC TROUBLE CODE C0327 WITH OR WITHOUT ADDITIONAL DIAGNOSTIC TROUBLE CODES SETTING. *TT |
| 00859 | 2004-06-09. Service bulletin. ELECTRICAL SYSTEM. DIAGNOSTIC TROUBLE CODE (DTC) C0327 WITH OR WITHOUT ADDITIONAL DIAGNOSTIC TROUBLE CODES (DTCS) SETTING. *TT *MJ |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.