GLOBAL SAFETY FIELD INVESTIGATIONS
DCS5541
URGENT - DISTRIBUTE IMMEDIATELY
Date:

October 12, 2020

Subject: N202309750 - Service Update
Radio Changing Station Tuning
Models: 2020 Chevrolet Malibu
2020 GMC Acadia
Equipped with 8" Diagonal Multi-Color Driver Information Center
(RPO UHS)
To:

All General Motors Dealers

General Motors is releasing Service Update N202309750 today. The total
number of U.S. vehicles involved is approximately 10,715. Please see the
attached bulletin for details.
Global Warranty Management (GWM)
The Required Field Action section on the Investigate Vehicle History (IVH) screen will
be updated October 13, 2020 or sooner. A list of involved vehicles in dealer new
inventory is attached to this message. Please hold all warranty transactions until IVH
has been updated.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS

Service Update
N202309750 Radio Changing Station Tuning
Release Date:
Attention:

October 2020

Revision:

00

This service update involves vehicles in dealer inventory only and will expire October 31, 2021.

Make
Chevrolet
GMC

Model
Malibu
Acadia

Model Year
From
To

RPO

2020

UHS

2020

Description
8" Diagonal Multi-Color Driver
Information Center

This service update should be performed on vehicles in dealer inventory only. Involved vehicles are marked “open” on
the Investigate Vehicle History screen in GM Global Warranty Management system. This site should always be checked
to confirm vehicle involvement prior to beginning any required inspections and/or repairs.
Condition
Correction

Certain 2020 model year Chevrolet Malibu and GMC Acadia vehicles, equipped with an 8" Diagonal
Multi-Color Driver Information Center, (RPO UHS), may change radio stations without customer input.
Dealers will reprogram the instrument panel cluster (IPC) with SPS and USB.

Parts
No parts are required for this repair.
Warranty Information
Labor
Operation
9105253*
9105254*
*

Description
Verified Module Software or Calibration Level: Module Is
Programmed with Same Level Software or Calibration
Instrument Cluster Reprogramming with SPS and USB

Labor
Time
0.2

Trans.
Type

Net
Item

ZFAT

N/A

0.6

Important: To avoid warranty transaction rejections, carefully read and follow the instructions below:
•

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 SPS/SPS2.

Warranty Claim Code Information Retrieval
If the Warranty Claim Code was not recorded on the Job Card, the code can be retrieved in the SPS system as follows:
1.

Open TLC/TIS on the computer used to program the vehicle.

2.

Select and start SPS/SPS2.

3.

Select Settings.

4.

Select the Warranty Claim Code tab.

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.
Service Procedure
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.
Note: Carefully read and follow the instructions below.
•

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.

Copyright 2020 General Motors. All Rights Reserved.

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Service Update
N202309750 Radio Changing Station Tuning
•

Turn OFF or disable systems that may put a load on the vehicles battery such as; interior lights, exterior lights
(including daytime running lights), HVAC, etc.

•

Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M)
system status indicators to NO.

5644477

5431207

Important: Techline Connect and TIS2WEB screens shown above.
Important: If the same calibration/software warning is noted on the TLC or SPS Summary screen, select OK and
follow screen instructions. After a successful programming event, the WCC is located in the Service Programming
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Service Update
N202309750 Radio Changing Station Tuning
System dialogue box of the SPS Summary screen. No further action is required. Refer to the Warranty section of the
bulletin.
Important: When programming a module in GM’s new Vehicle Intelligence Platform, or VIP, the power mode (ignition)
needs to be off or errors may occur. This involves the 2020 Chevrolet Corvette, Cadillac CT5 and CT4, as well as the
upcoming full-size Chevrolet, GMC, Cadillac SUVs and Buick Envision. Serial Data Message Authentication also
needs to have the ignition off.
Tip: Remove any customer installed USB devices from the USB ports before inserting the USB drive containing the
software.
1.

Access the Service Programming System (SPS) and follow the on-screen instructions.

2.

On the SPS Supported Controllers screen, select P16 Instrument Cluster – Programming and follow the on-screen
instructions.
•

The USB File Transfer procedure requires the use of a USB memory stick. The radio must be on during this
procedure. The USB File Transfer procedure is not required for vehicles with UDC.

•

Software currently loaded on the USB Drive will be verified and if files are incorrect they will be deleted and
correct files will be loaded. If files residing on the USB Drive are correct for the vehicle being serviced, the
Techline terminal will not delete those files and allow the drive to be re-used.

•

The USB File Transfer procedure is normally performed with the Ignition ON/Vehicle in Service Mode. If USB
File Transfer fails in Ignition ON/Vehicle in Service Mode, attempt USB File Transfer again with the engine
running.

Note: Setup and Configuration is not required for this field action programming event.
3.

On the SPS Supported Controllers screen, select P16 Instrument Cluster – USB File Transfer and follow the onscreen instructions.

4.

At the end of programming, choose the “Clear All DTCs” function on the SPS screen.

5644478

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Service Update
N202309750 Radio Changing Station Tuning

5431209

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.
Note: In rare occurrences, (depending on the current instrument cluster software level) this programming event may
fail the first attempt. If the first programming attempt fails, attempt to program again as the second attempt should be
successful. If programming fails a second attempt, then contact the Techline Customer Support Center.
5.

Record SPS Warranty Claim Code on job card for warranty transaction submission.

Dealer Responsibility
Dealers must take the steps necessary to ensure that the service update correction has been made to all involved vehicles
in dealer inventory before selling or dealer-trading the vehicle, but no later than October 31, 2021.
All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers' possession
and subject to this bulletin must be held and inspected/repaired per the service procedure of this bulletin before customers
take possession of these vehicles. Involved vehicles must be held and not delivered to customers, dealer-traded,
released to auction, used for demonstration, or any other purpose.
All GM Certified Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System
(CPOIS) will be de-certified and must be held and remedied per the service procedure in this bulletin. Upon submitting
an accepted/paid warranty transaction in the Global Warranty Management (GWM) system, the vehicle can be re-certified
for sale within the CPOIS system, or once again be used in the CTP program.
Dealer Reports
The Inventory tab of the Open Vehicle Report will contain Service Update Bulletin VINs that apply to this field action.
This information is intended to assist dealers with the PROMPT COMPLETION of these vehicles. The Customer InService tab will not contain Service Update Bulletin VIN data because the intent of a Service Update Bulletin is to not
inconvenience a customer with a special trip for service. Service Update Bulletins are to be completed when the
customer is in for a regularly scheduled visit.
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 tools, equipment, 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 dealer for information on whether your
vehicle may benefit from the information.

We Support
Voluntary Technician
Certification
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