Flash: Powertrain Control Module (PCM) Updates

Bulletin number

18-002-21

Component

Electrical system

Summary

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Technicians and/or customers may report the vehicle will not pass a state smog check due to permanent fault codes which will not clear. As a result, the vehicles are not eligible to be registered in certain states.This software release includes the following software enhancement:Corrections to allow the vehicle to clear the permanent fault codes. Four modules are required to be flashed for this update to be effective, the following modules are all to be updated along with this PCM update:Electronic Brake Booster Module (EBBM). Anti-Lock Brake System Module (ABS). Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) or also known as Power Inverter Module (PIM).

Owners of these vehicles have filed 397 complaints in the electrical category.