NHTSA ID Number: 11023143
Manufacturer Communication Number: PIT6431
TSB/Document Date: 2025-09-16
Summary
This preliminarily information communication an issue with the supercruise dropping out when next to a merging lane and engineering is investigating.
Bulletin No.: PIT6431
Service Bulletin
Date: September, 2025
PRELIMINARY INFORMATION
Subject:
Brand:
Super Cruise Disengages When Driving Next To Merging Lane
Model:
Model Year:
from
VIN:
to
from
Engine:
to
Escalade
2026
All
All
All
All
Escalade
ESV
2026
All
All
All
All
ESCALADE
IQ
2026
All
All
All
All
ESCALADE
IQL
2026
All
All
All
All
LYRIQ
2026
All
All
All
All
OPTIQ
2026
All
All
All
All
VISTIQ
2026
All
All
All
All
Equinox EV
2026
All
All
All
All
Silverado EV
2026
All
All
All
All
Suburban
2026
All
All
All
All
Tahoe
2026
All
All
All
All
All
All
All
All
All
All
All
All
Sierra EV
2026
All
All
All
All
Yukon
2026
All
All
All
All
Yukon XL
2026
All
All
All
All
Involved Region or Country
North America
Additional Options (RPO)
UKL - Supercruise
Condition
In some cases, a customer may comment that their Super Cruise is dropping out with a
DIC message indicating to take the steering wheel and then will quickly come back and
be available again to initialize.
The location of where this is dropping out is important, as it will be next to a merging lane.
This includes on ramps if customer is in the far right lane or can occur when vehicle is in
the middle lane and the left lane merges into the middle lane.
Note: This scenario may start to happen at locations where it previously has not occurred
but does now.
Cause
Engineering is currently investigating.
Copyright 2025 General Motors
. All Rights Reserved.
Page 2
September, 2025
Bulletin No.: PIT6431
Correction
Verify with the customer where the dropout is occurring, specifically what lane they are in and if they are near a
merging lane when it occurs.
Once that is verified, do not replace any modules. Engineering is currently investigating the issue and, in the
meantime, please continue to drive your vehicle.
Version
1
Modified
09/08/2025 - Created on.
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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TSB/Document ID: PIT6431
Replacement Service Bulletin Number:
MFR Communication Date: 2025-09-08
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
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