Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the...
Jeep technical service bulletin 21-028-20 for 2019 Jeep Grand Cherokee and 2019 Dodge Durango.
- Bulletin number
- 21-028-20
- Component
- Power train
- Summary
- Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience the following:The vehicle does not move when shifted from ?Park? to ?Drive?, even when the accelerator pedal is pressed. This issue will only occur shortly after the vehicle is started.There are no Diagnostic Trouble Codes (DTCs), Malfunction Indicator Light (MIL) set, or message displayed on the Instrument Panel Cluster (IPC) and the shifter will display ?Drive? (D).
Owners of these vehicles have filed 60 complaints in the transmission category.
Vehicles covered
- Jeep Grand Cherokee 2019 2019
- Dodge Durango 2019 2019
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