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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 id10246479
Published by NHTSA2023-12-09
Manufacturer's number23-NA-145
Manufacturer's date2023-11-21
NHTSA componentEQUIPMENT; BACK OVER PREVENTION:SOFTWARE; ELECTRICAL SYSTEM

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

Driver assistance, Electrical system, Equipment and accessories, Backup camera

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.

Recalls for the same vehicles and component
26V5390002026-08-20. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
23-NA-1692024-03-06. Service bulletin. This service bulletin provides repair information to correct a customer concern of the rearview driver information camera intermittent in low light conditions - replace camera.
PIT6043A2023-12-04. Service bulletin. This Preliminary information communicates to GM dealership technicians that if they receive a customers vehicle with this concern that GM is aware of this issue and investigating. Once a repair is available, this PI will be updated with the fix.
A2324158002023-09-27. Service bulletin. Service Update. Various VCU software issues discovered from warranty. Dealers will reprogram the radio. Sent updated stock VIN list, message updated to include correct numbers of USA VINs involved.