Dodge Challenger 2015 — technical service bulletin
Bulletin 21-019-15 · NHTSA communication 10144869 · issued Mar 31, 2015
Technical service bulletin
communication type
Power Train
component
2015
model years
1
vehicle entries
Official summary
Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one or more of the following conditions. ? Less than desired upshift performance during Wide Open Throttle (WOT) accelerations. ? Less than desired overall downshift performance during coasting deceleration, braking, or while passing. ? Less than desired transmission performance during Multiple Displacement System (MDS) mode transitions. ? Less than desired light or medium throttle shift
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.