2101617

Flash: Transmission Diagnostic and Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one of the following Diagnostic Trouble Codes (DTCs) have been set: U1424-00 - Implausible Engine Torque Signal Received. P1DB8-00 - Unintended Torque Applied While in Neutral. Customers may describe the following: Poor shift quality on coast down shifts (bumps) (LX and LD Only). In addition, the following software enhancement is available: Improved transmission shifting during a limp mode.