Bulletin No.:

Service Bulletin

Date:

22-NA-032
February, 2022

TECHNICAL
Subject:

Radio Software Version W161 – Multiple Updates
This bulletin replaces PIT5866B. Please discard all previous copies of PIT5866B.

Brand:

Model:

Chevrolet
GMC

Model Year:
from

to

Tahoe
Suburban

2022

2022

Yukon
Yukon XL

2022

2022

VIN:
from

Engine:

Transmission:

to

Involved Region or Country

United States, Canada, Mexico, Uzbekistan, Russia, Middle East, Bolivia (West), Chile
(West), Colombia (West), Ecuador (West), Peru (West), Cadillac Korea (South Korea),
Thailand (ASEAN)

Additional Options (RPOs)

Equipped with RPO IOK

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 W161, was released to service for vehicles
equipped with Infotainment system RPO IOK. 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, vehicles in
unconnected markets, and fleet customers may need the dealer to reprogram the radio
with the new software package.

W161 Most Notable Improvements
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:
Radio:
• That the home screen bar may be missing on the
left side of the display (only happens in guest
profile).
• Presets may be lost over an ignition cycle.
• Home button may be inoperable.

Copyright 2022 General Motors LLC. All Rights Reserved.

•

Multiple apps may be inoperable, such as MyGMC
and CarPlay.
• Return to dealer message on Display Center
Stack Module (CSM) may be present.
Phone:
• Phone settings may not retain over ignition cycle,
unable to delete paired phones, etc.
• Call audio may be lost when a customer gets a
second call while they are on the first call.
Cluster (IPC):
• Log in as guest message may be present on
Integrated Center Stack (ICS) — Demo Mode

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February, 2022

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

Bulletin No.: 22-NA-032

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.

Bulletin No.: 22-NA-032

February, 2022

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5743643

Important: If the vehicle VIN DOES NOT match, the
message below will be shown

5877000

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February, 2022

Bulletin No.: 22-NA-032

5644477

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 System dialogue box of the SPS
Summary screen. No further action is required. Refer to
the Warranty section of the bulletin.
1. Inspect the current radio software version.
Navigate to Settings -> About -> Build Number ->
Information “i” to view and verify the software
version. If the build number is less than W161,
update the radio software.
• If the build number is W161 or greater, this
bulletin does not apply.
• If the build number is less than W161, update
the radio software.

Tip:
• Once the USB update is initiated, there is no
need to monitor the progress.
• If an Infotainment over the air (OTA) update is
present in the radio Updates menu, check for
and reference any applicable field action
bulletins first.
• If the radio displays Conditions are not ideal,
there are many reasons this can display but be
aware that stable battery voltage is critical
during programming. Any fluctuation, spiking,
over voltage or loss of voltage will interrupt
programming.
Caution: to avoid potential programming errors that
might result in a Cadillac splash animation being
displayed on non-Cadillac models, ensure both
programming events (Programming and USB File
Transfer) are performed.
2. Install the radio software update via USB. Refer to
A11 Radio: Programming and Setup in the Service
Manual.

Bulletin No.: 22-NA-032

February, 2022

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5644478

Note: The screenshots above are 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.
3. Record Warranty Claim Code on job card for
warranty transaction submission.

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

*2888458

Reprogram Radio - W161 software for IOK

0.6 hr

*This is a unique Labor Operation for Bulletin use only.
Important: **To avoid warranty transaction rejections, carefully read and follow the instructions below:
• The Warranty Claim Code must be accurately entered in the “SPS 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 “SPS 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.

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February, 2022

Bulletin No.: 22-NA-032

Warranty Claim Code Information Retrieval
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.
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.
Version

2

Modified

Released February 08, 2022
Revised February 18, 2022 – Updating Warranty Information Labor Operation and
Subject.

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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