Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2014 Fiat 500 owners, lightly cleaned up (personal details are redacted by NHTSA).
On 1/24/2024 the check engine came on. I went to auto zone the same day and they check the alert. They advised the code possibly could be the spark plugs or ignition coil. The engine light went off on 2/6/2024 and I went to the dealership for them to check the code information. The code that appear PCM P0301-00 Active Cylinder 1 Misfire-
Tl* the contact owns a 2014 Fiat 500. While stopped at a traffic light, the vehicle jerked violently. A message appeared on the dashboard instructing the contact to place the transmission shifter in the neutral position and then into the drive position. The contact followed the instructions and the engine failed without warning. The contact attempted to restart the engine multiple times before succeeding. The check engine warning light then illuminated. The contact stated that the vehicle was reluctant to accelerate and drive slowly. The contact also noticed a burning odor. The contact discovered that the odor was coming from under the hood. The vehicle was towed to a dealer but was not diagnosed or repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 39,000. …
Tl* the contact owns a 2014 Fiat 500. While driving approximately 42 MPH, the vehicle stalled without warning and the contact lost control of the vehicle. As a result, the contact crashed causing damage to the rear driver side of the vehicle and the rear window. A police report was not filed and no injuries were reported. The vehicle was towed to the dealer, but was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 6,000. The VIN was not available.
I was pulling into traffic on an extremely busy road. There is always heavy traffic on this road so you must pull out into traffic quickly. When doing so I pressed the gas pedal almost to the floor. The car did not shift into any gear. It was like it went into neutral. The RPM's reved and it would not move. I was almost hit on both sides of the vehical. This happened on Saturday sept. 5th. On tues. Sept 8th I was on an on ramp to the interstate. I once again pressed firmly onthe gas pedel to be able to meger into traffic and quickly get up to speed. While doing so, the car acted the same way. It was like it was in neutral. I was once again almost hit by several cars. I called Fiat in portland and demanded they look at the car. At first they could'nt get me in as they were over booked. I explained that I have surgery in mass. …
I bought car on May 2014. After I used car for 2-3 months I have a problem about I couldn't start because of no battery power. I took to the shop and they said change the battery brand new. However, after I use car for 6-7 months it happened again that I couldn't start the car d/t no battery, the technician said to me that the computer drain the battery and they will adjust the computer system not to drain battery. After the 2nd time happen I drove for another 3-4 months I experience the smoke coming out from the front hood while I was driving. I brought to the shop and the technician couldn't find any problem. And as of today (11/22/15) it happen again that I couldn't start my car. My car monitor said the radiation fluid temperature is too high. I have to towed car to the shop. The shop called me said they couldn't find any problem the car is start normally. …
Under cold conditions (25 degrees f) and first startup of the day, when driving vehicle in city driving the vehicle's throttle response will stop working intermittently. The issue typically occurs after starting the vehicle in the morning in sub-freezing temperatures and then driving in 1st and 2nd gear to exit residence and enter traffic. Upon stopping at a stop light or sign, and then proceeding to accelerate, the vehicle's throttle will malfunction and the gas pedal will not respond when pressed. The rpms will drop to about 1300rpms and enter what feels like limp mode momentarily until the gas pedal is pumped a few times and then it will resume accelerating as normal. No error codes are thrown and the local Fiat studio cannot get the error to duplicate. This is a safety issue as it typically happens while entering into traffic and the vehicle becomes unresponsive. …
While driving the car, would experience jerky movements while the car shifted in 1st, 2nd and 3rd gears, both accelerating and decelerating. Have had issues with the transmission locking while the car is in park, needing to let the car sit and then restarting it. Have also had issues with sluggish 1st gear that suddenly lurches forward when the gas pedal is really pushed down. Braking is also touchy. Multiple trips to the dealership service department to have this fixed, opened a case with the manufacturer regarding the fixes. Manufacturer supplied a new transmission valve body that was replaced, seemingly fixed the jerky movement but resulted in the sluggish 1st gear. Manufacturer closed case when lemon law was mentioned.
Tl* the contact owns a 2014 Fiat 500. While driving at approximately 30 MPH, the transmission temperature gauge warning light illuminated and a voice activated indicating that the clutch was overheating and warned the contact to park the vehicle immediately. In addition, the contact stated that when the vehicle was parked in various weather conditions, the shift lever failed to shift out of the park position. The failure recurred intermittently. The vehicle was towed to a dealer, where it was inspected but the cause of the failure was not determined. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 1,045.
Tl* the contact owns a 2014 Fiat 500. The contact stated that while driving at unknown speeds, the vehicle decelerated without warning. In addition, fumes were seeping into the vehicle. The vehicle was taken to the dealer where it was diagnosed that the battery was low which caused the failure. As a result, the battery was removed and placed back into the vehicle but the failure persisted. The manufacturer was made aware of the failure. The failure mileage was 432. Updated 7/29/15 updated 9/19/2017
Was driving the car in stop and go traffic in detroit. Car began to smoke heavily as if on fire, and engine shut down and stalled right in the middle of the highway. Had car towed to dealership and they were unable to do immediate diagnosis of car. Car has less than 5000 miles on it and was purchased brand new in October 2014.
Engine complaints in other 500 years
Frequently asked questions
How common are engine problems on the 2014 Fiat 500?
NHTSA has 20 complaints about the engine & cooling of the 2014 Fiat 500, 16% of the model year's 124 complaints.
Is there a recall for 2014 Fiat 500 engine problems?
No. NHTSA lists no engine & cooling recall for the 2014 Fiat 500, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2014 Fiat 500 engine problems start?
Half of the complaints with a recorded mileage happened before about 8,000 miles, and 82% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 2 fires and 0 injuries to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.