Black Radio Display Screen (Triangle and Camera with the Slash Through it) with both DTCs U023C and B1A62 Setting Current in Video Processing Module (VPM) – 2021 Cadillac Escalade

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Service Bulletin Bulletin No.: 21-NA-209
Date: November, 2021
TECHNICAL
Subject: Black Radio Display Screen (Triangle and Camera with the Slash Through it) with both
DTCs U023C and B1A62 Setting Current in Video Processing Module (VPM)
Brand: Model:
Model Year: VIN: Engine: Transmission:
from to from to
Cadillac
Escalade
Escalade ESV
2021 2021
Involved Region or Country United States, Canada, Mexico, Russia, Middle East, Japan, Cadillac Korea (South
Korea)
Additional Options (RPOs) Equipped with RPO UXP
Condition
Some customers may comment on a condition present on the radio display where a black
screen with a triangle and a camera with the slash through it is displayed.
5902524
Technicians may find two DTCs set current or in recent history:
• DTC U023C – Loss of communication with the K157 Video Processing Module (VPM)
• DTC B1A62 86
Cause The cause of the condition may be software anomalies in the VPM.
Correction Technicians are to pull VPM fuse F28 and leave for one minute then reinstall. After
completing the fuse pull then reprogram the VPM with the latest software released.
Page 2 November, 2021 Bulletin No.: 21-NA-209
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
NOTconnect 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.
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.: 21-NA-209 November, 2021 Page 3
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Important: If the vehicle VIN DOES NOT match, the
message below will be shown
5877000
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Bulletin No.: 21-NA-209 November, 2021 Page 5
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.
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1. Pull VPM fuse F28 and leave for one minute then
reinstall.
2. Reprogram the Video Processing Module. Refer to
K157 Video Processing Module: Programming and
Setup in SI.
Page 6 November, 2021 Bulletin No.: 21-NA-209
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Bulletin No.: 21-NA-209 November, 2021 Page 7
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 SPS Warranty Claim Code (WCC) screen shown
above on the job card. Refer to callout 1 above for the
location of the WCC on the SPS screen
3. Record SPS 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
*2888208 Video Processing Module Reprogramming and Fuse Pull 1.1 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.
Warranty Claim Code Information Retrieval
If the SPS 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.
Version 3
Modified Released September 13, 2021
Revised October 13, 2021 – Added description to DTC in Condition Section and graphic
to Correction Section.
Revised November 10, 2021 – Moved graphic and added a new step in step one to
Service Procedure

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