Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp...

Bulletin number

21-017-25

Component

Power train

Summary

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): ● P0300 - Multiple Cylinder Misfire. NOTE: DTC P0300 will be set in the Powertrain Control Module (PCM). No DTCs will be stored in the TCM. Customers may also experience the following: ● Rough running engine.

Owners of these vehicles have filed 36 complaints in the transmission category.