2012 Fiat 500 electrical system problems
63 owner complaints filed with NHTSA name the electrical system on the 2012 Fiat 500 — 16% of all complaints for this model year.
What owners report
“The vehicle had been stalling out on numerous occasions one being a freezing Xmas eve in Drive thru if it had happened somewhere isolated the driver could have frozen. I rented cars several times and replaced the alternator ,battery and at the final point at the dealership the mechanic suggested I…”
filed Jun 20, 2025
“The wiring harness bundle leading to the trunk failed between the trunk & upper drivers side of the car. Upper brake lights stopped working, then rear defroster, then trunk wouldn’t open & I got a license plate light warning on the dash. Mechanic tried to replace switch, still didn’t work, the…”
filed Oct 22, 2024
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Connector kit Before ordering this connector repair kit 68018957A$, check it in the Mopar Connector Repair Kit Website to confirm part number and applicability. There is an error with the wiring diagrams in Service…
9100226 · Service Bulletin/Repair Instructions · issued Sep 15, 2023Connector kit Before ordering this connector repair kit 68018957A$, check it in the Mopar Connector Repair Kit Website to confirm part number and applicability. There is an error with the wiring diagrams in Service…
9100226 · Service Bulletin/Repair Instructions · issued Sep 15, 2023
Electrical System problems in other 500 years
| Year | Reports | Share |
|---|---|---|
| 2015 500 | 26 | 28% |
| 2014 500 | 22 | 18% |
| 2013 500 | 17 | 10% |
Other reported problem areas on the 2012 Fiat 500
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.