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Service bulletin 24-NA-048

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 id10251915
Published by NHTSA2024-03-19
Manufacturer's number24-NA-048
Manufacturer's date2024-03-11
NHTSA componentELECTRICAL SYSTEM; EQUIPMENT; BACK OVER PREVENTION; SERVICE BRAKES, HYDRAULIC

NHTSA's summary

This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to the rear automatic braking may brake unwantedly, usually when reversing out of a garage or driveway.

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

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

Vehicles listed
CADILLAC LYRIQ2023, 2024
CADILLAC XT42024
CADILLAC redundant LYRIQ2024
CHEVROLET BLAZER EV2024 (the catalog's model; the bulletin names a series or trim of it)

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

Recalls for the same vehicles and component
26V0820002026-02-12. BACK OVER PREVENTION:SOFTWARE

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
24-NA-1022025-03-05. Service bulletin. This technical bulletin provides repair information to correct a customer concern of Advanced Park Assist Non-functional.
24-NA-1022025-02-21. Service bulletin. This technical bulletin provides repair information to correct a customer concern of Advanced Park Assist Non-functional.
N2324285402024-05-01. Service bulletin. Customer Satisfaction Program - Certain vehicles may require software updates that improve the customer experience and optimize future over-the-air updates. Dealers will perform a comprehensive software update.
PIT6105B2024-04-15. Service bulletin. This Preliminary information communicates to dealership technicians that they will need to perform this step prior to performing any programming on replacement radios.
PIT61302024-04-15. Service bulletin. This Preliminary information communicates a vehicle may be encountered with a grid type box showing at the front of the vehicle in the camera display. The dealer is advised that this is a normal characteristic of the vehicle and no repairs should be made.
PIT6044F2024-01-29. Service bulletin. This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.
PIE07752024-01-25. Service bulletin. Software Update on GM Ultium Vehicles (2024 Blazer EV - Customer Vehicles ONLY)
PIT60942023-12-18. Service bulletin. This PI states a vehicle may be encountered with a black or blank radio screen. The dealer technician is advised that updated software will be available 11/30/23. The technician is directed to reprogram the radio with the latest calibrations.
N23-G170AA2023-12-06. Service bulletin. • This update contains a required software change to help improve the overall software update and diagnostics process. • Be sure to install this update to be able to receive future software updates • Before you start the update, make sure that the time on the vehicle display is correct or the update may not install correctly. • If the time is incorrect, try the installation later when the time displayed is accurate. • If you plan to exit the vehicle, check the center display to make sure installation has started. • During the install period, your vehicle will be disabled and can’t be driven. Door locks and windows may not work, so don’t leave any occupants locked inside. • If the vehicle software update fails to install, follow the on-screen instructions or visit your preferred dealership. Better Never Stops™
PIT6044E2023-12-04. Service bulletin. This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.