21-021-25

"Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC):
• P1DB7-00- Torque Converter Clutch Performance. Customers may also experience one or more of the following:
• The check engine light illuminates.
• Overheating of the transmission fluid. REPAIR SUMMARY: This bulletin involves reprogramming the TCM with the latest available software."