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Over-the-air update BB31392

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeOver-the-air update
NHTSA id11036656
Published by NHTSA2026-09-02
Manufacturer's numberBB31392
Manufacturer's date2026-08-20
Campaign id or software version8A050-3BH-AA31
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Over the Air System Updates - 2025–26 ADX: Software Update for Audio System software version 8A050-3BH-AA31.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
ACURA ADX2025, 2026

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
B26-0052026-10-01. Service bulletin. Service Bulletin - Siri stops working when touching the display to interact with Wireless CarPlay. Siri can also freeze when reading a text message or when inputting a destination in Apple Maps.
BBTS305652026-04-14. Other. Tech Line Summary - The vehicle's infotainment system displays previously viewed SMS messages upon each ignition cycle, when the customer's Android phone is connected via Bluetooth.
B25-0422025-12-04. Service bulletin. Service bulletin - When updating the Telematics Control Unit (TCU) with the i-HDS tool an Error message will appear.
BB290502025-08-18. Other. Tech Line - Customers may experience error code S001 with their audio unit. The vehicle may also have DTC B2B05-92 CAN Gateway error stored due to the dealership’s wi-fi settings.