Flash: Transmission Control Module (TCM) Updates
This bulletin involves reprogramming the TCM with the latest available software.
Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs)
have been set:P0780 - Gear Shift Malfunction.
P1DD2 - Torque Request Signal From TCM Denied.
Customers may also experience one or more of the following:A bump feeling and high engine RPMs.
The vehicle going into limp home mode.
