Service bulletins for the 2003 Isuzu Ascender
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.
173 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Engine are shown. Show all
| 0501003 | 2005-05-10. Service bulletin. ENGINE AND ENGINE COOLING. NEW SPARK PLUGS AND GAPPING. *EH |
|---|---|
| 0401S002 | 2004-07-20. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON/CHECK ENGINE LIGHT ILLUMINATED, MISFIRE OR ROUGHNESS, DIAGNOSTIC TROUBLE CODE P0300 SET. *TT |
| 0401S001 | 2004-05-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. REVISED DIAGNOSTIC TROUBLE CODE (DTC) P2135 (SERVICE MANUAL REVISION). *TT |
| 0301S005 | 2004-02-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. REVISED DIAGNOSTIC TROUBLE CODE (DTC) P1125 (SERVICE MANUAL REVISION). *TT |
| 0301S004 | 2003-10-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. REVISED DIAGNOSTIC TROUBLE CODE (DTC) P0336 (ENGINE CONTROL SECTION OF THE SERVICE MANUAL). *TT THIS BULLETIN SUPERSEDES SB03-01-S004 DATED 08/01/2003. *TT |
| 030604033 | 2003-09-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. REVISED DIAGNOSTIC TROUBLE CODE P0336. *TT UPDATE. TO INCLUDE 2004 ISUZU NQR COMMERCIAL MODELS. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.