Complaint Engine idle fluctuates or stumbles at approximately 7 second interval

Bulletin number

LI07.70-P-078547

Component

Engine

Summary

Complaint Engine idle fluctuates or stumbles at approximately 7 second interval. No relevant fault codes are stored. Cause Torque signal mismatch between MRG and PTCU control units. Only effects version 20B of PTCU. Remedy Software solution in development and LI will be updated once an ETA is available. Replacing parts will not resolve this symptom. Vehicle can be released to owner if there are no other symptoms present. The idle fluctuation typically resolves after several trips and will not cause other drivability symptoms or damage to the vehicle. Create an informational TIPS case and submit to the powertrain team with the below information: -Video showing the "engine data" from head unit while symptom active -N3/10 MRG2 control unit log

Owners of these vehicles have filed 24 complaints in the engine category.