2016 Fiat 500X engine problems
52 owner complaints filed with NHTSA name the engine on the 2016 Fiat 500X — 34% of all complaints for this model year.
What owners report
“3 times my car had died going under 30 mph, it must turns off or goes into this neutral position and won’t let me change gears, when i restart it, the engine makes an awful squealing sound. all these “drive mode unavailable “ “check esc system” “service electronic brake” it seems it is related to…”
filed Jun 16, 2026
“The contact owns a 2016 Fiat 500X. The contact stated that while driving at an undisclosed speed, the transmission unintendedly shifted from drive(D) to neutral(N). The RPM became elevated; however, the vehicle failed to accelerate as intended. While driving approximately 15 - 20 MPH, the vehicle…”
filed Jan 12, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Verify Reman part number availability. Order the "R" part number for all orders:
9100624 · Service Bulletin/Repair Instructions · issued Jul 8, 2025"2.4L Excessive Oil Consumption XS1 Warranty Extension The customer may describe one or more of the following: ● Oil pressure low indicator lamp illumination between oil changes. ● Excessive oil consumption This…
09-010-25 · Service Bulletin/Repair Instructions · issued Apr 30, 2025"2.4L Excessive Oil Consumption XB1 Warranty Extension The customer may describe one or more of the following: ● Oil pressure low indicator lamp illumination between oil changes. ● Excessive oil consumption. This…
09-018-24 · Service Bulletin/Repair Instructions · issued Aug 29, 2024"Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning…
S1408000384 REV.F · Service Bulletin/Repair Instructions · issued Jun 25, 2024
Other reported problem areas on the 2016 Fiat 500X
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.