PIE0661A

Subject:
Engineering Information – Automatic Emergency Braking (AEB) Lamp On with No DIC Message Displayed and/or No
DTCs Set
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 the latest version of Service Bulletin 04-00-89-053 for more
details on the use of Engineering Information bulletins.
This EI has been revised to add the 2022 Model Year and include Escalade, Suburban, Tahoe and Yukon models. Please discard PIE0661.
Brand:
Model:
Model Year:
VIN:
from
to
from
to
2022
—
—
Buick
Envision
2021
Cadillac
CT4
2020
Engine:
Transmission:
—
—
CT5
Chevrolet
Escalade
Models
2021
Suburban
Tahoe
GMC
Yukon Models
Involved Region or Country
North America
Condition
Important: If the customer did not bring their vehicle in for this concern, DO NOT proceed with this EI.
Some customers may comment that the Automatic Emergency Braking (AEB) lamp is on with no message
displayed on the driver information center (DIC).
Technicians will find no DTCs set.
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
If you encounter a vehicle with the above concern, perform the following steps and contact the engineer listed below with your findings.
1.
Set the following through Vehicle Settings -> Collision Detection System -> Pedestrian Collision Mitigation = Alert and Brake.
2.
Take a photo of the Pedestrian Collision settings.
3.
Take a photo of the Radio build information. This can be found under Radio Settings -> About -> Build Number -> press the information icon.
Note: Shown in the picture above is the indicator lamp engineering is looking for.
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4.
If telltale is still illuminated, create a "Vehicle DTC and ID information" report under Vehicle Diagnostics in GDS2.
5.
Under module diagnostics K124 Image Processing Control Module -> Data Display -> Front Impact Mitigation Disable History and open each event history 1-8
and follow PIP5632E to email the GDS2 session log, radio build number photo and radio settings photo to the engineer listed below.
Contact Information
The Contact Information has been redacted.
Please include the following information if leaving a message:
–
Technician name
–
Dealer name and phone number
–
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
3487418*
Engineering Information - Automatic Emergency Braking (AEB) Lamp On with
No DIC Message Displayed
0.3 hr
*This is a unique Labor Operation for bulletin use only.
Version
2
Modified
Released October 08, 2021
February 10, 2022 – Added the 2022 Model Year and included Escalade, Suburban, Tahoe and Yukon models.
2