The contact owns a 2017 Fiat 500. The contact stated that while driving 25 MPH, the check engine, TPMS, and several unknown warning lights illuminated. Additionally, the vehicle was jerking and making an abnormal sound. The failure was recurrent. The vehicle was towed to an independent mechanic, who was unable to duplicate or determine the cause of the failure. The dealer was contacted by phone. The failure mileage was approximately 15,873.
Engine & cooling
2017 Fiat 500 Engine problems
Owners have filed 2 complaints about the 2017 Fiat 500's engine & cooling with NHTSA - 14% of all its complaints, most recently on September 16, 2026. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.
- Complaints
- 2
- Recalls
- 0
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
Engine complaints
Using a large and relatively heavy key ring and inadvertently hitting it while adjusting the radio caused the engine to shut down while driving on a city street on three occasions. Removing the key ring and using the key without a ring solved the problem. After removing the key ring there were no more incidents.
Fiat 500 engine complaints by year
500 engine problems, every yearSource: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data