Customer Satisfaction Program 21B17 – Alternator to Powertrain Control Module Calibration Mismatch – 2021 Ford Explorer
NHTSA ID Number: 10187813 Manufacturer Communication Number: 21B17 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. 1 Affected Product … Read more