NHTSA ID Number: 11014592
Manufacturer Communication Number: 25-NA-021
TSB/Document Date: 2025-02-28
Summary
This technical bulletin provides repair information to correct a customer concern of Radio Software Update W23E-178.1.2-M174-SQBR6-93.3.
Bulletin No.: 25-NA-021
Service Bulletin
Date: February, 2025
TECHNICAL
Subject:
Radio Software Update W23E-178.1.2-M174-SQBR6-93.3
This Bulletin Replaces PIT6228. This Bulletin Replaces Some Model(s) from PIT6228.
Brand:
Model:
Model Year:
from
to
Enclave
2025
2025
Escalade
Escalade ESV
2025
2025
2025
2025
2025
2025
VIN:
from
Engine:
to
Equinox
Chevrolet
Suburban
Tahoe
Traverse
Acadia
Yukon
Yukon XL
Involved Region or Country
North America, Middle East, Israel, Palestine, Argentina (Mercosur), Brazil (Mercosur),
Bolivia (West), Chile (West), Colombia (West), Peru (West)
Additional Options (RPOs)
Equipped with RPO IVE
Condition
Some customers may comment on software related issues. Continuous improvement
software updates are being released with improvements made in several areas.
Cause
The cause of the condition may be software anomalies.
Correction
A new radio software update, version is W23E-178.1.2-M174-SQBR6-93.3, was released
to service for vehicles equipped with Infotainment system RPO IVE being brought into the
service department. In addition to providing general robustness and stability
enhancements, this update includes all enhancements from previous software version
releases. Along with the vehicles mentioned above; fleet customers may need the dealer
to reprogram the radio with the new software package.
Caution: To avoid potential programming errors, ensure both programming events (Programming and USB File Transfer) are performed.
Important: Improvements will vary by model, build configuration, system, and sales region. Not all vehicles have all features.
Most notable improvements contained in this release may include:
Apps:
• User can access Ambient Lighting app in a vehicle that doesn't support it
• Radio may unintentionally present a password error
• Universal garage door remote application now available
Audio:
• No audio
• No chime
Copyright 2025 General Motors. All Rights Reserved.
Page 2
February, 2025
Bulletin No.: 25-NA-021
• Static
Bluetooth:
• Connection loss
• Radio may go to max volume
• No audio
• Not functioning
• SMS message not on user interface
• Static
Camera:
• Black screen
• Camera video feed and icons overlap
• Frozen
• Slow
CarPlay:
• Black screen after call ended with OnStar
• Connection
• Slow to load
• Stuck in phone volume after call ended
Cluster:
• Falsely set codes: B197F.00, U0485.00 & U1962.00 in BCM
• Frequent dimming
• Trip odometer not resetting
• Parts of cluster may be unresponsive
• Wrong graphics/information
Display:
• Black box
• Black screen
• Customer see blank screen after door open/close during approach animation
• Customer will see the wallpaper and other components in Vtrack/Vseries theme, but apptray/statubar will be
shown in the base (flow) theme
• Half screen black
• Home button inoperable
• HVAC bar missing
• View change is slow when shifting from Park to Reverse
MFC:
• Not functioning
Non-streaming Apps:
• Wireless charging buttons inoperable
OnStar:
• Call not displayed
• No audio
• Stability
Bulletin No.: 25-NA-021
February, 2025
Page 3
• Popup message - Pedestrian Collision Alert did not appear
Steering Wheel Controls:
• Steering wheel dial may scroll in the opposite direction
Export only:
• Customer would not be able to complete SetUpWizard in EU under certain circumstances
Service Procedure
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.
Caution: Before downloading the update files, be sure the computer is connected to the internet through a network
cable (hardwired). DO NOT DOWNLOAD or install the files wirelessly. If there is an interruption during programming,
programming failure or control module damage may occur.
• Ensure the programming tool is equipped with the latest software and is securely connected to the data link
connector. If there is an interruption during programming, programming failure or control module damage may
occur.
• Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will
interrupt programming. Install a GM Authorized Programming Support Tool to maintain system voltage. Refer to
www.gmdesolutions.com for further information. If not available, connect a fully charged 12 V jumper or booster
pack disconnected from the AC voltage supply. DO NOT connect a battery charger.
• Follow the on-screen prompts regarding ignition power mode, but ensure that anything that drains excessive
power (exterior lights, HVAC blower motor, etc) is off.
• Please verify that the radio time and date are set correctly before inserting USB drive into vehicle for
programming, otherwise an error will result.
• Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M)
system status indicators to NO.
Important: The service technician always needs to verify that the VIN displayed in the TLC left side drop down
menu and the top center window match the VIN plate of the vehicle to be programmed prior to using Service
Programming System 2 (SPS2) for programming or reprogramming a module.
• For the TLC application, service technicians need to always ensure that the power mode (ignition) is “ON”
before reading the VIN from the vehicle’s VIN master module and that they do not select a VIN that is already in
the TLC application memory from a previous vehicle.
• If the VIN that shows up in the TLC top center window after correctly reading the VIN from the vehicle does not
match the VIN plate of the vehicle, manually type in the VIN characters from the vehicle VIN plate into the TLC
top center window and use these for programming or reprogramming the subject module with the correct vehicle
VIN and software and/or calibrations.
• The Engine Control Module (ECM) is the master module (for VIP vehicles) that TLC reads to determine the VIN
of the vehicle. If the VIN read from the vehicle by TLC does not match the VIN plate of the vehicle, the ECM
also needs to be reprogrammed with the correct VIN, software and calibrations that match the vehicle’s VIN
plate.
• The Body Control Module (BCM) is the master module (for GEM vehicles) that TLC reads to determine the VIN
of the vehicle. If the VIN read from the vehicle by TLC does not match the VIN plate of the vehicle, the BCM
also needs to be reprogrammed with the correct VIN, software and calibrations that match the vehicle’s VIN
plate.
Caution: Be sure the VIN selected in the drop down menu (1) is the same as the vehicle connected (2) before
beginning programming.
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February, 2025
Bulletin No.: 25-NA-021
5743643
Important: If the vehicle VIN DOES NOT match, the message below will be shown
5877000
Bulletin No.: 25-NA-021
February, 2025
Page 5
5644477
Important: Techline Connect screens shown above.
Important: If the same calibration/software warning is noted on the TLC Summary screen, select OK and follow
screen instructions. After a successful programming event, the WCC is located in the Service Programming System
dialogue box of the SPS Summary screen. No further action is required. Refer to the Warranty section of the bulletin.
1. Reprogram the Radio. Refer to A11 Radio: Programming and Setup in SI.
Page 6
February, 2025
Bulletin No.: 25-NA-021
5644478
Note: The screenshot above is an example of module programming and may not be indicative of the specific module
that is being programmed. Module selection and VIN information have been blacked out.
Important: To avoid warranty transaction rejections, you MUST record the warranty claim code provided on the
Warranty Claim Code (WCC) screen shown above on the job card. Refer to callout 1 above for the location of the
WCC on the screen.
2. Record SPS Warranty Claim Code on job card for warranty transaction submission.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
*2810335
Radio Reprogramming with SPS
Use Published Labor
Operation Time
Important: *To avoid warranty transaction rejections, carefully read and follow the instructions below:
Bulletin No.: 25-NA-021
Labor Operation
February, 2025
Description
Page 7
Labor Time
6125814
• The Warranty Claim Code must be accurately entered in the “Warranty Claim Code” field of the transaction.
• When more than one Warranty Claim Code is generated for a programming event, it is required to document all Warranty
Claim Codes in the “Correction” field on the job card. Dealers must also enter one of the codes in the “Warranty Claim
Code” field of the transaction, otherwise the transaction will reject. It is best practice to enter the FINAL code provided by
SPS2.
Warranty Claim Code Information Retrieval
6125774
Page 8
February, 2025
Bulletin No.: 25-NA-021
If the Warranty Claim Code was not recorded on the Job Card, the code can be retrieved in the SPS2 system as
follows:
1. Open TLC on the computer used to program the vehicle.
2. Select and start SPS2.
3. Select Settings (1).
4. Select the Warranty Claim Code tab (2).
The VIN, Warranty Claim Code and Date/Time will be listed on a roster of recent programming events. If the code is
retrievable, dealers should resubmit the transaction making sure to include the code in the SPS Warranty Claim
Code field.
Version
2
Modified
Released February 04, 2025
Revised February 20, 2025 - Added the 2025 Buick Enclave, Cadillac Escalade,
Chevrolet Suburban, Tahoe, and GMC Yukon, Yukon XL.
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: 25-NA-021
Replacement Service Bulletin Number:
MFR Communication Date: 2025-02-20
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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