PIE0732

Subject:
Engineering Information - Loss of Propulsion, Loss of Traction and/or Grinding Type Noise Heard After Loss of
Traction and/or Vehicle Towed Due to Half Shaft Disconnection
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:
Model Year:
XT5
VIN:
from
to
from
to
2022
2023
—
—
Engine:
Transmission:
—
—
XT6
Chevrolet
Blazer
GMC
Acadia
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 on having one or more of the following conditions:
•
•
•
•
Cause
Loss of propulsion
Loss of traction
Grinding type noise heard after loss of traction
Vehicle towed due to half shaft disconnection
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
1.
Remove the left side front wheel drive shaft, take a clear close up picture of the spline indicating engagement at 16 mm at the end of the groove to the
end of the spline, as shown in the picture above. Refer to Front Wheel Drive Half Shaft Replacement - Left Side in SI.
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
8486138*
Engineering Information - Grinding Type Noise Heard From Left Side of
Vehicle
0.5 hrs.
*This is a unique Labor Operation for bulletin use only.
Version
1
Modified
Released December 12, 2022
2