Service bulletins for the 2003 Honda Pilot
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.
307 on file from NHTSA, as of 2026-10-19.
About P1491 on the 2003 Honda Pilot: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: P1491 are shown. Show all
| 05-026 | 2008-04-24. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). HONDA SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. WARRANTY EXTENSION: EGR VALVE CONTAMINATION OR EGR PORT CLOGGING MAY CAUSE DTC P0401, DTC P1491, OR ENGINE HESITATION/SURGE. CSC WAS RECEIVED. *NJ |
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| 00009 | 2005-11-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). WARRANTY EXTENSION: EGR VALVE CONTAMINATION OR EGR POR CLOGGING MAY CAUSE DTC P0401, DTC P1491, OR ENGINE HESITATION/SURGE. *TT |
| 012704 | 2004-03-10. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. REQUEST FOR VISIT. CUSTOMER COMPLAINT OF THE ENGINE STUMBLING, SHUDDERING, HESITATING, OR MOMENTARILY SURGING. MAY ALSO EXPERIENCE A CHECK ENGINE LIGHT, AND DIAGNOSTIC TROUBLE CODE (DTC) P1491 MAY BE DISPLAYED. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.