What breaks most · 2016 to 2018 model years
Fiat 500X problems by year
Owners have filed 54 safety complaints with NHTSA about the Fiat 500X across model years 2016 to 2018. Three years stand out: 2016 for engine complaints, 2017 for electrical system complaints and 2018 for electrical system complaints.
- Years to check closely: 2016, 2017, 2018
- Complaints on file
- 542016 to 2018, all trims
- Worst year
- 201648 complaints
- Crashes reported
- 01 fires · 0 injuries · 0 deaths
- Typical failure mileage
- 26kMedian where owners gave mileage
- Recall campaigns
- 3Across the years shown
Complaints by model year
Raw filings with NHTSA, not adjusted for how many were sold.
| Model year | Complaints | Crashes | Recalls | Most-reported component |
|---|---|---|---|---|
| 48 | 0 | 1 | Engine (18) | |
| 5 | 0 | 1 | Electrical system (2) | |
| 1 | 0 | 1 | Electrical system (1) |
What fails on the 2016 Fiat 500X
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| EngineEngine gaskets and seals | 38% |
18 | 0 | Shop engine parts for the 2016 Fiat 500X |
| Powertrain and transmissionTransmission parts | 33% |
16 | 0 | Shop all powertrain and transmission parts, not filtered to this vehicle |
| Electrical systemAlternators, starters and ignition | 27% |
13 | 0 | Shop electrical system parts for the 2016 Fiat 500X |
| Unknown or other | 21% |
10 | 0 | — |
| Speed control and throttleThrottle and pedal sensors | 8% |
4 | 0 | Shop speed control and throttle parts for the 2016 Fiat 500X |
| Stability controlABS and wheel speed sensors | 8% |
4 | 0 | Shop stability control parts for the 2016 Fiat 500X |
| Exterior lightingHeadlights, tail lights and bulbs | 6% |
3 | 0 | Shop exterior lighting parts for the 2016 Fiat 500X |
| Fuel systemFuel pumps and injectors | 4% |
2 | 0 | Shop fuel system parts for the 2016 Fiat 500X |
One complaint can name more than one component, so shares add to more than 100%. "Unknown or other" is NHTSA's uncategorized bucket and is shown but never ranked.
In owners' words
Complaint narratives as filed with NHTSA, trimmed for length.
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Vehicle shifts roughly when in motion, when starting out and also while driving. Sometimes it does it when i start to slow down and then speed back up. I have notified the service department and they say they can't find a problem.
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The car stopped working suddenly in the miami turnpike, drive mode not available went on, also ABS, parking and engine lights went on. It was scary because stopped working without previous notice. We almost have an accident. It happens the same in 2015, same model in tampa highway.
How to read this page
Every figure comes from the National Highway Traffic Safety Administration's public complaint database, which holds every safety-related defect complaint filed by owners since 1995. We refresh it monthly and count each complaint once per component it names. Data through September 30, 2026.
NHTSA only accepts safety-related complaints. Rattles, paint, infotainment bugs and other annoyances are under-reported here, so this page is a map of what fails in ways owners consider dangerous, not a full reliability score.
Counts are raw. Use the year-over-year shape and the component mix, not the absolute numbers. Where a component maps to parts we stock, the row links to that category filtered to the year you are viewing. Air bag and seat belt complaints link to the recall checker instead, because those repairs are almost always covered.
Common questions
Which Fiat 500X years have the most problems?
By NHTSA complaint volume, 2016, 2017, 2018 carry the most filings on the Fiat 500X. The 2016 alone has 48 complaints, led by engine.
What is the most common Fiat 500X problem?
On the 2016 model year, the most-reported component is engine with 18 complaints. The table above lists the top components for every year.
At what mileage do Fiat 500X problems start?
The median mileage at failure across all Fiat 500X complaints that include mileage is about 26,000 miles. Older model years skew higher; the per-year figure is in the "at a glance" card.
Are these complaints verified?
No. NHTSA publishes complaints as submitted and does not investigate individual filings. Patterns across hundreds of complaints are meaningful; a single one is not.