NHTSA ID Number: 10237656
Manufacturer Communication Number: PIC6503
TSB/Document Date: 2023-06-13
Summary
This Preliminary information communicates to the technicians that if they have a Lyriq that comes in for this concern to Double USB Update the A11 radio receiver.
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TSB/Document ID: PIC6503
Replacement Service Bulletin Number:
MFR Communication Date: 2023-05-12
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
Bulletin No.: PIC6503
Published date: 05/12/2023
Preliminary Information
PIC6503 Radio Display Is Blank Instrument Cluster Works As Designed
Models
Brand:
Cadillac
Model:
Lyriq
Model Years:
2023
VIN:
from
SOP
Engine:
to
1GYKPMRK8PZ002451
All
Transmissions:
All
Involved Region or Country North America
Additional Options (RPO)
IVD
Some customers may comment that their radio display is blank while the cluster works as designed
Condition
Cause
A11 Radio USB software
Correction:
Technicians are to perform a Double USB update for the A11 Radio. Below are the required steps for performing the Double USB Update.
1. Connect the MDI2 to the vehicle and hardwired connection to the PC being used for SPS2.
2. Selecting A11 radio and USB le transfer, it will download the les to the USB drive. Type C USB Drive (16GB or 32GB formatted to FAT32) is
recommended. *Note - Please use only the Type C USB drive as noted above. DO NOT use a USB to Type C USB adapter for programming as this may
cause errors.
3. Place the vehicle into Service Mode. Insert the USB drive to the vehicle's USB receptacle. Once it is inserted, the radio display will show the Update and
progress bar.
4. Once it completes, the radio display will show a message mentioning it needs to reboot. Follow the on screen instructions and the radio will return to
operation. *Note - Please do not go back to the computer and download the le again from SPS2. This is not needed for the 2nd USB update to take
place.
5. Next, remove and reinsert the USB drive again to the vehicles USB receptacle. It will start this process again for updating the 2nd half. It will also show
update successful once done and will reboot again.
6.*Note - If the radio display shows "Calibrate Device" after the 2nd USB update completed, the A11 radio needs to be reprogrammed with SPS2 for
calibrations. If it does not show this, all is well and vehicle can be retested for operation and released.
7. Once completed, please go to Radio Settings>System>About>Buildnumber. The Buildnumber "aegean-user 11 W34E-168.5.1-M164-RQBR2-185.2 34
release-keys" will be the current Buildnumber once the USB update was completed.
*If the radio fails the USB update and shows the multiple languages screen on the radio display, disconnect the USB drive from the vehicle. Reinsert the
USB drive and shut the vehicle o . While the vehicle is o and the USB drive is still connected, the radio will start recovering within 15-20 minutes.
*It is anticipated that replacement radios will come with updated Software soon. If Software programming is required on a replacement radio, please
follow the Double USB Update procedure above.
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
3487828
Add Time
Description
Verify radio display is blank, but instrument cluster works as designed
Perform double USB update to A11 radio
*This is a unique Labor Operation for Bulletin use only.
Version History
Version
Modi ed
1
05/12/2023 - Created.
© 2023 General Motors. All Rights Reserved.
Labor Time
0.2
1.2
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