2012 Fiat 500 Fuel system Problems
- Complaints
- 23about this part
- Share
- 6%of 396 total for the year
- Median mileage
- 54,000miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 23 complaints about the fuel system of the 2012 Fiat 500, 6% of the 396 complaints for this model year. Where a mileage was given, the median is 54,000 miles.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Refueling is difficult, gas pump shuts off every few seconds. I've tried many different pumps at many different gas stations. I read online that Fiat recognizes a problem with the fuel rollover valve, but the entire gas tank must be replaced to replace the valve. This is a design problem that causes a safety issue.”
NHTSA complaint #11067231, filed 2018-02, 80,000 miles“When trying to pump gas in car, it would take about 10 mins to pump one gallon and it would shut off constantly. In other words when squeezing the pump, it would put a few drops and cut off and it would continuously do this. The problems was the roller over shut off valve was stuck and the solution was to get a whole new tank. In order to keep expenses down and because this was not recalled, we had our mechanic move the ball and this resolved the issue until it gets stuck again. The cost was approximately $150”
NHTSA complaint #11183928, filed 2019-03, 58,000 miles“I took my car in to Fiat in slc utah ken garff they took my car said I had an oil leak then came back and said I needed a catalyst converter I believe the electronic system has been hacked into by the dealership in order to make money which puts me and my 13 year old child are at risk in this car please help I have been though this same thing in buford ga please help I want Fiat to buy my car back I own it out right please I dont trust the dealer something is going on with the electonic system”
NHTSA complaint #10778316, filed 2015-09, 122,290 miles“Suddenly one day I was no longer able to pump gas into my vehicle. Whenever I try to fill up my gas tank gas were just back up, no matter how empty my tank was. I took my vehicle to my dealership, and a stated that there was a valve at the top of my gas at the top of my fuel tank that is preventing the gas from draining into the tank. Nothing that I did or could have done caused this issue to break. And when I inquired about replacing the valve they stated that I would have to replace the entire fuel tank system, but the part was on back order for 1 to 2 months because they were sold out.”
NHTSA complaint #11308087, filed 2020-02, 54,000 miles“I was driving home on a road flat/straight road with a 50 MPH speed limit. I was shifting my gears (manual) as I noticed that the light ahead was turning from red to green. I could not get the gear to grasp 3rd. Moreover, the when I tried pressing the brake, it did not feel like it normally does. It was much more difficult to push the brake. I was really scared and almost had an accident. I was somehow able to coax my car to the side of the road. I turned the car off, and turned it back on. …”
NHTSA complaint #10558127, filed 2014-01, 40,047 milesRelated service bulletins
- 10175733Apr 21, 2020Possible Driveability Issues due to the Winter-Blend Fuel into the Warmer Season
- 10217521Mar 15, 2017Oil Pump Assembly If error code P06DD present on any Pentastar V6 application, please inspect oil pump for relief valve failure. See photo attached. If valve is found out of…
Fuel system: other model years
Other parts of the 2012 Fiat 500
201 complaintsElectrical system
63 complaintsEngine
51 complaintsOther or unknown
37 complaintsAir bags
32 complaintsSuspension
21 complaintsSteering
19 complaintsBrakes
13 complaintsExterior lighting
12 complaintsVehicle speed control
12 complaintsVisibility (wipers, defrost, mirrors)
11 complaintsBody and structure
9 complaints
← All problems reported for the 2012 Fiat 500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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