Service bulletins for the 2025 Honda CIVIC SI
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.
5 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Electrical system are shown. Show all
| AA27867 | 2026-09-02. Over-the-air update. ELECTRICAL SYSTEM. Over the Air System Updates - 2025 Civic Si: Software Update for Audio System software version 8A050-T20-AA31. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.