Chrysler 300 2016 — technical service bulletin
Bulletin 21-063-15 · NHTSA communication 10159929 · issued Nov 11, 2015
Technical service bulletin
communication type
Power Train
component
2016
model years
3
vehicle entries
Official summary
Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming of the Transmission Control Module (TCM) with the latest available software. Customers may experience any of the following symptoms: ? Hanging or delayed upshift when braking downhill or when braking after high vehicle acceleration rate. ? Releasing the accelerator pedal rapidly causes hanging or delayed upshift. Updating the TCM software will correct the conditions listed above.
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.