23-NA-222

Bulletin No.:
Service Bulletin
Date:
23-NA-222
January, 2024
TECHNICAL
Subject:
Radio Software Version W26E-172.4.2-M169-SQBR4-123.4 – Multiple Updates for IVD
This Service Bulletin replaces PIT6092B and PIT6094A. Please discard all versions of
PIT6092 and PIT6094.
Brand:
Cadillac
Chevrolet
Model:
LYRIQ
XT4
Blazer EV
Model Year:
VIN:
from
to
2024
2024
2024
2024
from
to
—
—
Engine:
Transmission:
—
—
Involved Region or Country
North America, Europe, Middle East, Cadillac Korea (South Korea)
Additional Options (RPOs)
Equipped with Infotainment RPO IVD
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 W26E-172.4.2-M169-SQBR4-123.4, was released
to service for vehicles equipped with Infotainment system RPO IVD 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.
This new radio software update has been released via an Over-the Air-Update. Customer
will receive a Software Update notification once the software has been downloaded to
their vehicle. Customers need to accept the OTA when prompted.
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:
Radio:
• Stability improvements.
• RVC does not work or shows red triangle.
• Delayed RVC bring up.
• Cannot launch Android Auto/Apple CarPlay.
• Infotainment lockout while driving not working.
• HVAC screen missing icons/text.
• Bad audio quality.
• (Cadillac only) MFC press not functioning.
• (Cadillac only) MFC focus issue.
• CarPlay black screen.
Copyright 2024 General Motors LLC. All Rights Reserved.
•
•
•
•
•
•
•
•
•
•
No audio.
Radio stays on Bluetooth instead of Android Auto/
Apple CarPlay.
Virtual Controls not responding when pressed
during welcome animation.
Add Phone button not responding.
Welcome animation freezes.
Camera view selection not available.
Overspeed chime does not continuously play.
Pop Up Window layout issues.
Welcome animation plays twice after quick door
open ignition on.
Reset Trip not functioning.
Page 2
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
January, 2024
Add profile stuck loading.
Universal Remote settings do not respond
correctly.
Ambient Lighting app crashes.
Ambient lighting app not working.
Ambient Lighting missing audio selection
feedback.
Forward camera exits at speeds lower than target
speed.
Radio does not respond/freezes.
Driver settings not being saved.
Trailering Light Test screen stuck.
Android Auto display shifted on the screen.
Android Auto/Apple CarPlay won't launch after
switch user.
Profiles page blank after deleting new profile.
Radio resets after sleep cycle.
Audio app crashes.
RVC stays on incorrectly.
Audio does not lower for notifications.
Switching themes not working.
(EV only) Audio issues when using
MaxPower Mode.
Tire pressure not updating (vehicle info).
Audio plays during a call.
Audio settings page layout errors.
Blank screen when pushing back button on teen
driver add key pop up.
Virtual Lighting controls not functioning.
Wrong units shown.
Temperature on radio display not updating.
OnStar TBT starting audio sometimes does
not play.
Bluetooth media continues playing after source
change.
Pop up disappears too quickly.
Bluetooth media not shown when phone
connected.
Presets change order after key cycle.
Bluetooth media queue not correctly showing.
Radio crashes when long pressing power button.
Bluetooth not working.
Bluetooth will not reconnect.
Button layout errors.
Radio sets DTC B1596.82 with no impact to RVC
function.
RVC launches on its own.
Camera app exit and view selection buttons don't
come up.
Some buttons do not respond.
Camera app layout and views distorted.
System settings not retained over key cycle.
Camera view selection not available.
Theme cards missing.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Bulletin No.: 23-NA-222
Cameras do not close while driving or when
in park.
Trailer profile notifications persist.
Cannot control Ambient Lighting.
Trailering total mileage not updating.
Turn By Turn error message displays incorrectly.
Cannot open virtual controls window.
User account name not updating.
VCU stuck in GUEST user.
Virtual controls do not respond when camera view
is up.
Can't dismiss pop ups.
Voice search not available when driving.
Can't sign into Google Play Store.
Window position Virtual Controls not working.
CarPlay screen changes to home screen on
its own.
XM not available.
(EV only) Charge battery pop up does not come
up when using Max Power below SOC level.
Audio stuck on Bluetooth source.
Climate app not functioning.
Camera DTC B1C47 set incorrectly.
Connect Phone list dialog box shows excess
material.
Crash from SXM Browse Screen.
Phone app unresponsive to touch.
Podcasts show default album art.
Date/Time display errors out when turning off
vehicle.
Pop ups not appearing.
Profile loading repeats.
Radio app layout errors.
Radio display defaults to Virtual Controls screen
on ignition.
Radio does not retain last screen after sleep cycle.
Driver PIN is not cleared after software update.
Radio presets not working.
Radio resets during emergency call.
Embedded apps not updating.
Radio stays on around 20 seconds after vehicle
shutdown.
Embedded Maps app view distorted.
RVC does not brighten in dim settings.
Emergency announcement does not interrupt
audio from other sources.
RVC screen flickering.
Exit "X" button not working on some apps.
Service tire pressure monitor message shown
incorrectly.
External Wi-fi password not saved.
Favorites window shifting.
QuickStartUp fails to resume.
Geofencing creation issues.
Bulletin No.: 23-NA-222
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
January, 2024
SXM favorites do not play audio.
Geofencing positioning errors.
Teen driver options not responding.
Google Assistant pop up does not display.
Third party app not shown on new user profile.
Google Maps freezes when editing route during
route calculations.
Traffic Signal Recognition telltale not following
driver setting.
Trailering app crashing.
Trailering notification missing.
HVAC menu doesn't provide feedback when
changing fan speed.
HVAC Temp Knob doesn't respond.
Incorrect Google Map data shown.
Incorrect information when on two calls.
Turn signal sounds plays incorrectly.
Incorrect pop up for Auto Park Assist cancellation.
USB auto-rejected for corrupt song.
Incorrect translation.
VCU resets and U164E set in multiple modules.
Vehicle image missing in Vehicle Info App.
Keyboard does not pop up when entering
password.
Virtual Controls App will not open.
LCDD provisioning fails and gets stuck.
Virtual controls window sized incorrectly and cuts
off some buttons.
Loss of all audio and chimes over key cycle.
Voice assistant pop up stuck.
Welcome animation missing vehicle model.
Media app plays incorrect source.
Wi-Fi name and password cannot be changed.
WOW Mode animation not working.
XM Media app shows "Unavailable" but music is
playing.
(Cadillac only) MFC rotation not functioning.
MyBrand won't install.
Navigation crashes.
No data on connected devices.
Radio display start up animation failed.
Camera UI not responding after shift from PARK.
Camera gridlines incorrectly sized.
OnStar call stuck on connecting screen.
OnStar missing location notification during calls.
Climate app not functioning with pop up "vehicle
must be running" when vehicle is already running.
Radio loses some connected services function
after factory reset.
Active Noise Cancellation creating loud droning
and other audio abnormalities inside of vehicle.
Page 3
Phone:
• CarPlay audio still through vehicle when toggled
to phone.
• Phone auto-connect not functioning after profile
change.
• Incoming call alert not shown when in another call.
• Android Auto shows wireless charging icon
incorrectly.
• Text messages pop up not shown in vehicle.
• Bluetooth audio lost after voice assistant long
press.
• "Add Phone" button not working.
• No sound when using Android Auto.
• Call Ended shown incorrectly when disabling call
profile.
• Phone pairing dialog pops up every key cycle.
• Call timer shows negative value after call
reconnect.
• Cannot launch Android Auto/Apple CarPlay.
• Cannot repair Bluetooth devices.
• Text message notification sound not heard.
• CarPlay Siri does not work after SWC long press
radio reset.
• Phone screen shows blank when canceling in
progress Bluetooth pairing.
• Bluetooth audio start up volume too high.
• Bluetooth crashes when cable is unplugged.
• Bluetooth device listed twice in media.
• Cannot pair device as pair mode stuck OFF.
Displays:
• IPC and ICS info mismatch.
• Cluster layout issues.
• Blank Screens and/or Update Failed Screen after
low voltage/dead battery.
• Speedometer not updating.
• Both displays black screen.
• No Touch Response on radio display.
• Display illumination improvements.
• Cluster screen flickers.
• Black radio screen at startup.
• Delayed Cluster bring up.
• Blank Cluster display with telltales.
• PRND stuck on reverse.
• eAWD telltale not activating.
• Radio Display Illumination Too Dark Compared to
Cluster Display.
• Fuel Economy scale missing.
• Cannot remove Cluster Info tile.
• HUD black screen for key cycle.
• CarPlay maps black screen on Cluster display.
• HUD blank with radio setting B19B0.
• Offroad display stuck on.
• HUD missing info and not responsive.
Page 4
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
January, 2024
Quickly switching between Cluster views causes
display failures/hang ups.
(Cadillac only) Radio display flickers after
using MFC.
HUD not working after deep sleep.
Radio display loss of touch and erratic dimming.
HUD settings not remembered.
Speed Limit icon will not disappear when driver
setting set to Hide.
IPC and HUD info mismatch.
Cluster navigation option missing.
Blank Cluster display.
Transmission temperature gauge color on Cluster
shows red hot when vehicle is within operating
temperature range.
Cluster reset.
Lane lines don't show colored in Cluster Assist
layout.
Navigation route on Cluster display is not still
shown after ignition cycle with STR.
Android System message at start up.
HUD shows cruise at "0" instead of "–" when no
speed is set.
Vehicle info apps show "Add to Driver Display"
when already shown.
Display layout issues.
Drive mode app flickers when changing modes.
Pressing "Turn Off Display" can cause the display
to get stuck in a flickering/resetting cycle.
Service Display message and loss of radio screen
and virtual controls.
Programming:
• "Update Unsuccessful" message stuck on until full
sleep cycle.
• LCDD provisioning fails and gets stuck.
• "Vehicle Software Updates are available" does not
show on every ignition.
• Radio screen shows no icons after programming.
• Speed limit shows dashes after SW update.
• Blank screen during USB programming.
• USB recovery status bar shows on cluster display.
• Cannot enable Quick Start Up after USB Update.
• No success pop up or record of USB updates.
Charging App:
• Charge Scheduling did not work.
• Screen turns off when launching Charging app.
• Charge App inoperable.
• Missing dialogue info for charge complete/
stopped.
• Schedule home screen formatting issues.
• Charging App cannot access data.
• Cannot set charge level.
Bulletin No.: 23-NA-222
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.
Important: This technical service bulletin (TSB) can
only be completed by certified repair facilities who have
met all specific training, tool and equipment
requirements pertaining to the vehicle Brand and Model
serviced. Repairs must be performed by a technician
who has successfully completed the required training.
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 12V 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
Bulletin No.: 23-NA-222
January, 2024
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.
Page 5
Page 6
January, 2024
Bulletin No.: 23-NA-222
5743643
Important: If the vehicle VIN DOES NOT match, the
message below will be shown.
5877000
Bulletin No.: 23-NA-222
January, 2024
Page 7
5644477
Important: Techline Connect screen is 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. Document the WCC on the job card.
No further action is required. Refer to the Warranty
Information section of this bulletin.
1. Reprogram the Radio. Refer to A11 Radio:
Programming and Setup in the Service Manual.
Page 8
January, 2024
Bulletin No.: 23-NA-222
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 the SPS Warranty Claim Code on the 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
2889998*
Update radio to W26E-172.4.2-M169-SQBR4-123.4 Via
USB/SPS
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:
Bulletin No.: 23-NA-222
January, 2024
Page 9
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 10
January, 2024
Bulletin No.: 23-NA-222
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 December 14, 2023
Revised January 09, 2024 – Added the 2024 Cadillac XT4 and Europe to the Involved
Region or Country 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