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Service bulletin 23-NA-145

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)
TypeService bulletin
NHTSA id10244173
Published by NHTSA2023-10-16
Manufacturer's number23-NA-145
Manufacturer's date2023-09-19
NHTSA componentELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT

NHTSA's summary

This service bulletin provides repair information to correct Radio Software issues with software update version 167.5.

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, Equipment and accessories, Software

Vehicles listed
BUICK ENCORE GX2024
BUICK ENVISTA2024
CHEVROLET TRAILBLAZER2024
CHEVROLET TRAX2024

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
20-NA-1322024-04-05. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
A23-2415802023-10-29. Service bulletin. '(There may be future updates under this same release number.) Your vehicle keeps getting better. This software update includes the following if your vehicle is equipped: Refinements: • Updates made to the center display and instrument cluster to help address intermittent display issues. • Updates made to the wireless functionality to help improve phone projection setup and capabilities. • Updates made to the overall vehicle software update process to help improve software installation. • A variety of other minor software updates to help make your driving and in-vehicle experience better. Better Never Stops™ .
A2324158002023-09-27. Service bulletin. Service Update. Various VCU software issues discovered from warranty. Dealers will reprogram the radio.