PIE0762

Subject:
Engineering Information - Backlight on Infotainment and Cluster Screen is Black and/or Blank
Attention:
Proceed with this EI ONLY if the customer has commented about this concern AND the PIE number is listed in the
Global Warranty Management / Investigate History link (GWM/IVH). If the customer has not commented about this
condition or the EI does not show in GWM/IVH, disregard the PIE and proceed with diagnostics found in published
service information. THIS IS NOT A RECALL refer to Service Bulletin 04-00-89-053 for more details on the use of
Engineering Information bulletins.
Brand:
Cadillac
Model:
LYRIQ
Model Year:
VIN Breakpoint:
from
to
from
to
2023
2024
—
—
Engine:
Transmission:
—
—
Involved Region or Country
U.S. Dealers ONLY
Condition
Some customers may comment on the backlight on infotainment and cluster screen is black and/or blank.
Cause
GM Engineering is attempting to determine the root cause of the above condition. Engineering has a need to
gather information on vehicles PRIOR to repair that may exhibit this condition. As a result, this information will
be used to "root cause" the customer's concern and develop/validate a field fix.
Correction
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.
If you encounter a vehicle with the above concern, perform the following steps and contact the engineer listed below with your findings:
1.
Pull the diagnostic data information for A11 Radio using GDS2.
2.
Collect the DTCs for A11 Radio, and full vehicle if possible.
3.
Check if any audio, click-clacks, and seat belt chimes are available.
4.
Check if any audio or click-clacks is heard when a screen touch event is performed.
5.
Check if the HVAC and the audio control works through the steering wheel controls. Is it available (Y or N)?
6.
Check the response for "Hey Google " voice command.
7.
With the vehicle in reverse and the brake pedal applied, check for the following:
7.1. Check to see if the rear view camera is available.
7.2. Check the OnStar light to see if it is green or red.
7.3. Check to see if the backlight is available on the screens.
8.
Check the brightness to make sure it is all the way high before reporting a black screen.
9.
Contact the engineer listed below with your findings.
Contact Information
The Contact Information has been redacted.
Please include the following information if leaving a message:
–
Technician name
–
Dealer name and phone number
1
–
Complete VIN and repair order (R.O) number
On the repair order, document the date and time the call was placed (even if the engineer was not reached).
If engineering is unable to return the call within one hour, proceed with diagnosis and repair based on information found in SI.
Warranty Information
If engineer was contacted or required information was provided, use:
Labor Operation
Description
Labor Time
2889838*
Engineering Information - Backlight on Infotainment and Cluster Screen is
Black and/or Blank
0.5 Hrs.
*This is a unique Labor Operation for bulletin use only.
Version
1
Modified
Released September 18, 2023
2