Service bulletins for the 2003 Chevrolet Avalanche
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.
746 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Engine are shown. Show all
| 030604031 | 2003-09-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. REVISED DIAGNOSTIC TROUBLE CODE P1125. *TT |
|---|---|
| 030604030 | 2003-08-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MULTIPLE DRIVEABILITY SYMPTOMS OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE DUE TO CLOGGED FUEL INJECTORS. *TT |
| 030601011 | 2003-04-28. Service bulletin. ENGINE AND ENGINE COOLING. ACCESSORY DRIVE BELT WHINE. *TT |
| 020601038 | 2003-03-29. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE KNOCK OR LIFTER NOISE. *TT |
| 020605005A | 2003-03-27. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. EXHAUST / MUFFLER HEAT SHIELD RATTLE, POPPING NOISE UNDER VEHICLE. *TT |
| 010102 | 2003-02-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. VEHICLE WILL NOT START CONDITION. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.