NHTSA ID Number: 11027697
Manufacturer Communication Number: PIT6425C
TSB/Document Date: 2026-01-19
Summary
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
Bulletin No.: PIT6425C
Service Bulletin
Date: January, 2026
PRELIMINARY INFORMATION
Subject:
Brand:
Super Cruise Unavailable With “No Road Information” Message OR GPSLinked Features Inoperative On Supercruise and Non-Supercruise vehicles
Model:
Model Year:
from
ALL
ALL
VIN:
to
2019-2026
from
ALL
Engine:
to
ALL
ALL
ALL
Involved Region or Country
North America
Additional Options (RPO)
UE1 Vehicles equipped with Gen 11 or Gen 12 TCP (Telematics module)
Condition
Some customers may report that when attempting to engage Supercruise on an
approved Super Cruise road, the system fails to activate. A “Super Cruise Unavailable”
message will appear on the Driver Information Center (DIC), accompanied by
a secondary message: “No Road Information.” Additionally, there may be no Diagnostic
Trouble Codes (DTCs) associated with the complaint.
Or some customers may also experience one or more of the following issues related to
GPS functionality on vehicle with or without Super Cruise.
• Phone Projection (Android Auto & CarPlay)
• Navigation
• Infotainment clock display
• Compass
• Universal Garage Door Opener
• DTC: U0411
Cause
The telematics module fails to track GPS Satellites causing a loss of GPS functions for
the vehicle.
Correction
1. (This option is only available on certain vehicles. If your vehicle does not have this screen, please proceed to Step
2.)
Access the GPS data list located under the K73 Telematics Module (OnStar Module). Park in an open-sky area,
check the value listed under the parameter “Number of Satellites Tracked.” If the number consistently reads zero,
the Telematics Module should be replaced.
2. Park in an open-sky area, then press the blue OnStar button in the affected vehicle and ask the OnStar Advisor to
check your location. If the location is incorrect, the vehicle is experiencing a GPS satellite issue, and the Telematics
Module should be replaced.
Copyright 2026 General Motors
. All Rights Reserved.
Page 2
January, 2026
Bulletin No.: PIT6425C
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
3422010
Description
Labor Time
Telematic Control Module
Replacement
Use
Published
Time
Version
4
Modified
08/21/2025 Created
10/16/2025 Updated to add additional models
10/17/2025 Updated to add 2026 Model Year
01/14/2026- Update to add to the title for more Visibility
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: PIT6425C
Replacement Service Bulletin Number:
MFR Communication Date: 2026-01-16
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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