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NHTSA ID Number: 11027940
Manufacturer Communication Number: PIC6626
TSB/Document Date: 2026-02-01
Summary
PI created to guide technicians through radio restriction process
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TSB/Document ID: PIC6626
Replacement Service Bulletin Number:
MFR Communication Date: 2026-01-28
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
Bulletin No.: PIC6626
Service Bulletin
Date: January, 2026
PRELIMINARY INFORMATION
Subject:
IOR Radio Issues
Brand:
Model:
Model Year:
from
VIN:
to
from
Transmission:
to
Encore GX
2022 - 2023
All
All
All
All
Blazer
2022 - 2025
All
All
All
All
Equinox
2022 - 2024
All
All
All
All
Malibu
2022 - 2025
All
All
All
All
Trailblazer
2022 - 2023
All
All
All
All
Traverse
2022 - 2023
All
All
All
All
Trax
2024 - 2025
All
All
All
All
Acadia
2022 - 2023
All
All
All
All
Terrain
2022 - 2024
All
All
All
All
Involved Region or Country
North America
Additional Options (RPO)
IOR
Condition
A customer may comment they are having issues with their infotainment system. This
may include any of the symptoms described below in correction section
Cause
Concerns may be software, connection, or hardware.
Correction
Step 1: Initial Assessment
For a radio display that is blank or black upon arrival, refer to PIC6540 and perform a radio reset to determine if the
display returns.
If the display returns, proceed to Step 2.
If the display does not return, follow standard SI diagnostics.
If SI leads to radio replacement and the display remains blank, proceed to Step 4.
If the customer reports a black screen that recovers, proceed to Step 3.
If the concern is not related to the display going blank/black, proceed to Step 2.Step 2:
Step 2 Operational Display
If the radio display is operational:
Check for DTCs.
If SI diagnostics direct you to replace the radio or if no DTCs are set, proceed to Step 3.Step
Step 3: Software Update
Copyright 2026 General Motors. All Rights Reserved.
Page 2
January, 2026
Bulletin No.: PIC6626
If the radio is not at the latest software level:
Update the radio, clear all codes, and recheck for the concern.
Refer to Bulletin 25-NA-315: C157.2/C158.2 Radio Software Update for Infotainment System RPO IOR.
Note: For phone connectivity concerns, ensure the customer’s phone is updated to the latest iOS or Android version
before proceeding. If issues persist, verify MEC reset per PIC6551.
Step 4: Connection Check
If concerns continue:
Disconnect, inspect, and reconnect all related connections.
Clear any codes and recheck for the concern.
Note: If, after updating the radio and verifying connections, the customer’s concern is a screen that goes black but
recovers, this is a known software anomaly. DO NOT replace the radio for this concern, as replacement will not
resolve the issue. GM is aware and investigating.
Step 5: Radio Replacement Authorization
If the concern persists (excluding a blank screen that recovers) and a new radio is required:
Radios are currently restricted through Specmo. Only contact Specmo to order a new radio.Specmo will require a
response to the attestation question before authorization is provided.
Attestation Question:
Have you followed the process: reset the module, installed the latest software, disconnected and reconnected,
confirmed the concern is not a blank/black screen that recovers, and determined that radio replacement is still
required?
Bulletin No.: PIC6626
January, 2026
Page 3
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
2810335
3481378*
3240840
Description
Labor Time
Update radio to latest
software
Use
Published
Labor Time
Disconnect and reconnect
Radio module
Radio Replacement
MY22 and 23
Encore GX
0.7 Hr.
MY22-25
Blazer 1.6 Hr.
MY22-24
Camaro 1.0
Hr.
MY22-24
Equinox
0.5 Hr.
MY22-25
Malibu 0.5 Hr.
MY22 and 23
Trailblazer
0.7 Hr.
MY22 and 23
Traverse 1.4
Hr.
MY24 and 25
Trax 0.4 Hrs.
MY22 and 24
Acadia
1.4 Hr.
MY22-24
Terrain
0.5 Hr.
Use
Published
labor time
Version
1
Modified
01/28/2026 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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