Dodge Challenger 2017 — technical service bulletin
Bulletin 2102517 · NHTSA communication 10224755 · issued Aug 23, 2017
Technical service bulletin
communication type
Power Train
component
2017
model years
1
vehicle entries
Official summary
Flash: Transmission Diagnostic and Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Customers may experience the following condition:During an engine limp mode condition, the transmission remains in a fixed gear. Poor shift quality (bumps) on coast down shifts. This software update also includes the following enhancements:Improved transmission adaptation (to address coastdown shift bumps) (Sales Code ESG only). Allow transmission gear shifting in the limp-in mode rather than fixed gear.
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.