Fiat 500 2015 — technical service bulletin
Bulletin 21-036-15 · NHTSA communication 10148939 · issued May 29, 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 or notice harsh shifts.
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.