2018 Fiat 500X Transmission and drivetrain Problems
- Complaints
- 4about this part
- Share
- 36%of 11 total for the year
- Median mileage
- 22,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the transmission and drivetrain of the 2018 Fiat 500X, 36% of the 11 complaints for this model year. Where a mileage was given, the median is 22,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“We had several instances were the car bucks when transmission shifts. Was taken to dealer and updates were made and had no issues until again it has started again. Not all the time but every once in a while. At sunset now but unable to duplicate problem. This is not the first issue we have had. First it was the fuel tank”
NHTSA complaint #11351568, filed 2020-08, 22,000 miles“I purchased my 2018 Fiat 500X POP used in April 2023 with only 22k miles. This past weekend 12/16 when I would first start my car up and get ready to leave in the mornings after having been parked for the night, my car would start up normal and I could proceed down the street. The minute I apply the break my car would lose power, stall out or shut off completely. I would press the start button, release the break, shift the gear to drive and proceed forward. …”
NHTSA complaint #11560961, filed 2023-12“THE Transmission Valve Body Solenoid was diagnosed as not working. while i was driving on the highway without any indication the car just started slowing down . There was not a warning or anything, then the transmission service lights up, i had to have my car towed to a dealership however they informed me that there was never any service they were supposed to do on my transmission because of the type of vehicle i have. this part is expensive and not easily obtainable. car is still showing transmission issue.”
NHTSA complaint #11595749, filed 2024-06Related service bulletins
- 11024056Oct 2, 2025948TE Transmission Reaction Shaft Service Bushing Kit Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following…
- 10223097Mar 17, 2022No Start, After Flash And Or PCM Replace, DTC P0513 Invalid Skim Key Setting
- 10221150Apr 16, 2021Gear Ratio DTC?s, Transmission Shift Concerns, Does Not Shift At Times, Shudders
- 10221097Apr 7, 2021Transmission Kit with Torque Converter 1. All Promaster (VF) 3.6L/62TE equipped vehicles. If the transmission bracket to the transmission case fasteners are removed during…
- 10220625Feb 27, 2021Flash: Drivetrain Control Module (DTCM) Diagnostic and System Improvements This bulletin involves reprogramming the DTCM with the latest available software. Customers may…
- 10188829Feb 27, 2021Flash: Drivetrain Control Module (DTCM) Diagnostic and System Improvements This bulletin involves reprogramming the DTCM with the latest available software. Customers may…
- 10162543May 8, 2019Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience the…
- 10162541May 8, 2019Flash: Powertrain Control Module (PCM) Update This bulletin involves reprogramming the PCM with the latest software. Customers may experience a Malfunction Indicator Lamp (MIL)…
Transmission and drivetrain: other model years
Other parts of the 2018 Fiat 500X
7 complaintsElectrical system
5 complaintsBrakes
2 complaintsFuel system
2 complaintsBody and structure
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2018 Fiat 500X
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology