# Over\-the\-air update AA27867

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.

- Type: Over\-the\-air update
- NHTSA id: 11036657
- Published by NHTSA: 2026\-09\-02
- Manufacturer's number: AA27867
- Manufacturer's date: 2026\-08\-31
- Campaign id or software version: 8A050\-T20\-AA31
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Over the Air System Updates \- 2025 Civic Si: Software Update for Audio System software version 8A050\-T20\-AA31.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036657-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036657-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2025 HONDA CIVIC SI

JSON: [/v1/bulletins/11036657](/v1/bulletins/11036657)

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