Bulletin No.: PIT6425D

Service Bulletin

Date: March, 2026

PRELIMINARY INFORMATION
Subject:

Brand:

Super Cruise Unavailable With “No Road Information” Message OR GPSLinked Features Inoperative On Supercruise and Non-Supercruise
Model:

Model Year:
from

ALL

ALL

VIN:
to

2019-2026

from
ALL

Engine:

Transmission:

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

March, 2026

Bulletin No.: PIT6425D

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

3422010

Telematic Control Module
Replacement

Use
Published
Time

3422790

Communication Interface
module

Use
Published
Time

Note: Some vehicles refer to the K73 OnStar module as
the Telematic control module or the communication interface module. Please you the labor op that applicable to
your model vehicle

Version

5

Modified

08/21/2025 Created
10/16/2025 Updated to add additional models
10/17/2025 Updated to add 2026 Model Year
01/16/2026- Update to add to the title for more Visibility
03/02/2026- Update to labor op section

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.

WE SUPPORT VOLUNTARY
TECHNICIAN
CERTIFICATION