Service bulletins for the 2003 Honda Civic
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.
320 on file from NHTSA, as of 2026-10-19.
About P1021 on the 2003 Honda Civic: 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: P1021 are shown. Show all
| 05028 | 2005-11-15. Service bulletin. ELECTRICAL SYSTEM. PRODUCT UPDATE: ECM UPDATE TO PREVENT CATALYST DTC P0420 AND/OR VPS DTC P1021, MCM UPDATE TO CURRENT SPECIFICATIONS. *TT |
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| 040103 | 2003-10-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. DIAGNOSTIC TROUBLE CODE P1021 SETS AFTER OIL CHANGE. *TT |
| 303 | 2003-07-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. DIAGNOSTIC TROUBLE CODE P1021 AFTER AN OIL CHANGE. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.