Affected Component: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE (BMS/BECM)

Date Published
APR 09, 2021
NHTSA TSB #
10193442
TSB Document
Summary
This Preliminary information communicates that a service theft deterrent message may display with no DTC's.   OnStar turned off the ECM read request to prevent re-occurrence.