Dodge Challenger 2015 — technical service bulletin
Bulletin 21-009-15 · NHTSA communication 10144892 · issued Feb 20, 2015
Technical service bulletin
communication type
Engine
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 concerns. These concerns are broken up per engine and transmission combination. 6.2L engine (sales code ESD) equipped with an 8HP90 transmission (sales code DFE) ? Transmission will not upshift during Wide Open Throttle (WOT) acceleration. ? Harsh or inconsistent coasting downshifts. ? Transmission will not shift into 7th gear during high speed driving. ? Inco
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.