Flash: Transmission Control Module (TCM) Updates
Fiat technical service bulletin 21-022-19 for 2018 Fiat 500X.
- Bulletin number
- 21-022-19
- Component
- Power train: automatic transmission: control module (TCM/PCM/tecm)
- Summary
- Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience the following:Malfunction Indicator Lamp (MIL) illumination, Electronic Vehicle Information Center (EVIC) message states ?Service Transmission? and transmission intermittently goes into neutral with PRNDL flashing when vehicle is stopped. The vehicle may or may not resume normal transmission operation after cycling the shifter or ignition.
Owners of these vehicles have filed 4 complaints in the transmission category.
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