Affected Component: ELECTRICAL SYSTEM

Date Published
FEB 18, 2021
NHTSA TSB #
10187813
TSB Document
Summary
In all of the affected vehicles, the installed high-output alternator and powertrain control module (PCM) calibration were not aligned. A mismatch between the alternator and PCM calibration could cause idle control issues such as engine speed fluctuations, which may cause customer dissatisfaction.