Dodge Durango 2021 — technical service bulletin
Bulletin 21-018-22 · NHTSA communication 10214643 · issued May 28, 2022
Technical service bulletin
communication type
Power Train
component
2021
model years
1
vehicle entries
Official summary
Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience the following:Harsh downshifts (3-2 or 2-1) when stopping.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.