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Fuel systemPart report

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 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
201717%
201567%
201422%
2013127%
2012236%

Other parts of the 2012 Fiat 500

Transmission and drivetrain
201 complaints
Electrical system
63 complaints
Engine
51 complaints
Other or unknown
37 complaints
Air bags
32 complaints
Suspension
21 complaints
Steering
19 complaints
Brakes
13 complaints
Exterior lighting
12 complaints
Vehicle speed control
12 complaints
Visibility (wipers, defrost, mirrors)
11 complaints
Body 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