WenmarOpen by Wenmar Pro

Service bulletins for the 2003 Honda Accord

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.

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

About P0300 on the 2003 Honda Accord: 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: P0300 are shown. Show all

Bulletins, newest first
040422005-03-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MALFUNCTION INDICATOR LAMP (MIL) COMES ON WITH DIAGNOSTIC TROUBLE CODES (DTCS) (P0301 AND P0305) OR (P0302 AND AND P0306) AND POSSIBLE P0300. *TT UPDATE. *TT

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