Flash: Powertrain Control Module (PCM) Updates

Bulletin number

18-077-20

Component

Power train

Summary

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs have been set:B25C9 - Driver Door Ajar Switch 2 Stuck Closed. P061A - Level 2 Torque Performance. C0513 - Wheel Speed Signal Right Rear Rationality. C050D - Wheel Speed Signal Left Rear Rationality. C0507 - Wheel Speed Signal Right Front Rationality. C0501 - Wheel Speed Signal Left Front Rationality. P0607 - ECU Internal Performance. Customers may experience one or more of the following:Poor shift quality. Lack of vehicle speed. A clatter or ticking noise from the engine at idle. Immediate autostart after autostop (without releasing the brake pedal). Failed autostart ? engine cranks but does not start, or starts and then stalls. The following software enhancements are also available:Cam/Crank sensor diagnostics. Engine Stop/Start (ESS) improvements.

Owners of these vehicles have filed 42 complaints in the transmission category.