Fiat averages 3 complaints per production run against 3.73 across the market, and its cars reach the halfway point of their complaints at 4 years. Cleanest model in the range is the 500X (1.87 per run), heaviest the 500L (3.79).
When it starts to break
Each of the 1,201 Fiat complaints carries an incident date, so what follows is not the calendar year a report was filed but the age of the car when it failed. That age decides who pays: inside the warranty the manufacturer does, outside it you do. Half of everything reported on a Fiat arrives by 4 years, sooner than the 5-year market median.
| Age at failure | Complaints | Running total | Warranty |
|---|---|---|---|
| 0 years | 8.4% | covered | |
| 1 year | 19.5% | covered | |
| 2 years | 27.8% | covered | |
| 3 years | 40.8% | you pay | |
| 4 years | 56.6% | you pay | |
| 5 years | 66.6% | you pay | |
| 6 years | 75.6% | you pay | |
| 7 years | 83.3% | you pay | |
| 8 years | 89.3% | you pay | |
| 9 years | 93.5% | you pay | |
| 10 years | 96.3% | you pay | |
| 11 years | 98.6% | you pay | |
| 12 years | 99.7% | you pay | |
| 13 years | 99.9% | you pay | |
| 14 years | 100% | you pay |
On a Fiat 27.8% of reported failures land inside the first three years, so the other 72.2% arrive when the bill is yours. Which Fiat matters more than the badge: the 500X draws 1.87 complaints per run and the 500L 3.79 — a 2-fold difference under one shield.
Fiat models ranked
Cleanest first, by complaints per production run — so a model that sold in millions is not punished for it. Across the 4 Fiat models on record the rate runs from 1.87 on the 500X to 3.79 on the 500L.
| Model | Per run | Complaints | Breaks at | Years |
|---|---|---|---|---|
| Fiat 500X | 185 | 4 yrs | 2016–2022 | |
| Fiat 124 Spider | 64 | 4.4 yrs | 2017–2020 | |
| Fiat 500 | 750 | 4.3 yrs | 2012–2018 | |
| Fiat 500L | 197 | 5.3 yrs | 2014–2017 |
Which Fiat years to avoid
Ranked by complaints per production run, so a year that simply sold well is not punished for it. Across 9 model years old enough to judge, the worst is 2012 at 5.6 per run and the cleanest 2020 at 1.1 — a 5.1-fold gap between two cars wearing the same badge.
| Model year | Per run | Complaints | Production runs |
|---|---|---|---|
| 2020 | 10 | 9 | |
| 2019 | 11 | 9 | |
| 2018 | 31 | 23 | |
| 2017 | 60 | 37 | |
| 2016 | 169 | 77 | |
| 2015 | 105 | 60 | |
| 2014 | 280 | 66 | |
| 2013 | 153 | 63 | |
| 2012 | 375 | 67 |
The table stops at 2020 on purpose. Reports against a Fiat keep arriving for a decade after it is sold, so a newer year would top this ranking on age alone and tell you nothing about the car.
What actually fails on a Fiat
Systems owners reported to the regulator, ordered by how much of the Fiat complaint file each accounts for. The biggest single one is Power Train at 32% of everything filed, typically going wrong at 4.7 years old.
| System | Complaints | Share of file | Typical age | Involved a crash |
|---|---|---|---|---|
| Power Train | 32% | 4.7 yrs | 9 | |
| Electrical System | 13% | 4.1 yrs | 4 | |
| Engine | 12% | 4.1 yrs | 1 | |
| Unknown Or Other | 8% | 4.8 yrs | 6 | |
| Air Bags | 6% | 5.1 yrs | 30 | |
| Vehicle Speed Control | 3% | 3.4 yrs | 3 | |
| Steering | 3% | 4.1 yrs | 4 | |
| Fuel/propulsion System | 3% | 4.9 yrs | 2 |
Take the top two to any pre-purchase inspection on a Fiat — a mechanic given named parts finds more than one told to look the car over.
Good year or bad year — the VIN settles it.
- Check any VIN against complaints for its exact build year and plant
- Exact value for that car, adjusted for its mileage
- Full research report as a PDF you can hand to a mechanic
- Alerts if a recall lands on a car in your garage
- No ads, on every page
- No ads, no tracking — and much more
How we measure it
Reliability scores usually arrive as a number out of five with no working shown. The Fiat figure on this page comes out of 1,201 individual reports, and here is exactly how they were turned into a rate — because two steps in that arithmetic are arguable and you should be able to argue with them.
Rate, not total. Volume alone would decide the ranking, so we divide by the number of production runs — the distinct first-eleven-character VIN prefixes on record. For Fiat that is 1,201 complaints spread over 401 runs — 3 per run against 3.73 for the market as a whole.
Age, not year. Incident date minus model year gives the age at failure, which is what the warranty question turns on. It is also why the Fiat year rankings above rest on 9 model years and stop at 2020: anything newer has not had time to break, and would win any comparison on age alone.
What this is not. Filing with a federal regulator takes effort, so what you see are faults someone judged serious — not scratched paint, not running costs, not how nice the car is to live with. Nor is a thin file a clean one — the Fiat 124 Spider sits on just 64 reports, which says how few reached US roads rather than how well they held up.
Frequently asked questions
Is Fiat reliable?
Fiat averages 3 complaints per production run against 3.73 across the market, with the halfway point of complaints at 4 years.
Which Fiat model is most reliable?
By complaint rate, the 500X at 1.87 per run. The full ranking is in the table above.
Which Fiat should I avoid?
Heaviest complaint rate in the range is the 500L at 3.79 per run — though a high rate on one generation does not condemn the model outright.
Where do these numbers come from?
Complaints filed with NHTSA, the US federal safety regulator. Filing one is a deliberate act, so this measures faults people considered serious — not survey opinions.