24-NA-048

Bulletin No.:
Service Bulletin
Date:
24-NA-048
March, 2024
ENGINEERING INFORMATION
Subject:
Brand:
Cadillac
Chevrolet
Information on Unwanted Rear Automatic Braking (RAB)
Model:
LYRIQ
XT4
Blazer EV
Model Year:
from
VIN Breakpoint:
to
from
to
2024
—
—
Engine:
Transmission:
—
—
2023
2024
Involved Region or Country
North America, Europe, Middle East, Israel, Palestine, Colombia (West), Ecuador (West),
Japan, Cadillac Korea (South Korea)
Additional Options (RPOs)
Equipped with SENSOR-COLLISION AVOIDANCE & MITIGATION, VEHICLE REVERSE
MOVEMENT (RPO UVZ)
Condition
Some customers may comment that the rear automatic braking may brake unwantedly,
usually when reversing out of a garage or driveway.
Cause
The cause of the condition may be due to the design sensitivity with the rear virtual
bumper.
Correction
If a customer has this condition with their vehicle, dealer technicians can show the
customer that there are different settings that the customer can select in their
personalization menu to either set an audible alert only or audible alert with braking.
Customers are also encouraged to refer to the owner’s manual section on reverse
automatic braking (RAB) and the warnings that are noted.
Service Procedure
Important: This technical service bulletin (TSB) can
only be completed by certified repair facilities who have
met all specific training, tool and equipment
requirements pertaining to the vehicle Brand and Model
serviced. Repairs must be performed by a technician
who has successfully completed the required training.
Important: Service agents must comply with all
International, Federal, State, Provincial, and/or
Local laws applicable to the activities it performs
under this bulletin, including but not limited to
handling, deploying, preparing, classifying,
packaging, marking, labeling, and shipping
dangerous goods. In the event of a conflict between
the procedures set forth in this bulletin and the
laws that apply to your dealership, you must follow
those applicable laws.
Copyright 2024 General Motors LLC. All Rights Reserved.
Page 2
March, 2024
Bulletin No.: 24-NA-048
Warranty Information
For vehicles repaired under the Bumper-to-Bumper
coverage (Canada Base Warranty coverage), use the
following labor operation. Reference the Applicable
Warranties section of Investigate Vehicle History (IVH)
for coverage information.
Labor Operation
Description
Labor Time
3486048*
Setting Up Personalization Settings
0.3 Hrs.
*This is a unique Labor Operation for Bulletin use only.
Version
1
Modified
Released March 11, 2024
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a
job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.
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