Fiat 500X: problems, complaints, bulletins
Summary for the Fiat 500X across 8 model years: 187 owner complaints and 227 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Engine 35% of all complaints
- 2 Electrical system 32% of all complaints
- 3 Powertrain 30% of all complaints
- 4 Exterior lighting 7% of all complaints
- 5 Vehicle speed control 7% of all complaints
- 6 Electronic stability control 6% of all complaints
- 7 Structure 6% of all complaints
- 8 Service brakes 5% of all complaints
- Engine: 65 complaints (35% of all); manufacturer bulletins for this component: 31.
- Electrical system: 59 complaints (32% of all); manufacturer bulletins for this component: 230.
- Powertrain: 56 complaints (30% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 67.
- Exterior lighting: 14 complaints (7% of all); manufacturer bulletins for this component: 31.
- Vehicle speed control: 13 complaints (7% of all), 1 of them with a crash reported by the owner.
Symptoms owners describe
How many of the 187 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 65 | 0 | 31 |
| Electrical system | 59 | 0 | 230 |
| Powertrain | 56 | 1 | 67 |
| Exterior lighting | 14 | 0 | 31 |
| Vehicle speed control | 13 | 1 | 0 |
| Electronic stability control | 12 | 0 | 3 |
| Structure | 11 | 0 | 33 |
| Service brakes | 10 | 0 | 3 |
| Steering | 9 | 0 | 6 |
| Fuel/propulsion system | 8 | 0 | 0 |
| Air bags | 7 | 3 | 15 |
| Suspension | 4 | 0 | 17 |
| Seat belts | 4 | 0 | 0 |
| Forward collision avoidance | 3 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
No warning lights were illuminated. The contact exited the vehicle safely and had a passenger in the front passenger-side seat and another in the rear middle row seat. The contact was adamant that the air bags should have deployed.
The air bags did not deploy as the other driver fled the scene. The contact stated that her son had sustained frequent headaches after the accident but had yet to seek medical attention. A police report was filed.
My vehicle collided with another vehicle. The other car air bag deployed while the Fiat front busted radiator, number etc damaged but the driver side did not deploy even on impact.
The air bags did not deploy and the front bumper detached. There were no injuries and no police report was filed. A local dealer (dealer information was unknown) was emailed to request a tow. The vehicle remained at the scene of the accident. The vehicle was not diagnosed or repaired.
3 times my car had died going under 30 mph, it must turns off or goes into this neutral position and won’t let me change gears, when i restart it, the engine makes an awful squealing sound.
The contact stated that while attempting to start the vehicle using the Push-to-Start button, the engine failed to crank or start. The vehicle was started after the fifteenth attempt.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC)…
- Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC)…
- 948TE Transmission Reaction Shaft Service Bushing Kit Customers may experience a Malfunction Indicator…
- Verify Reman part number availability. Order the "R" part number for all orders
- "Check Engine Light Illuminated - Erroneous Fault Codes Set Customers must experience a Malfunction…
- "2.4L Excessive Oil Consumption XS1 Warranty Extension The customer may describe one or more of the following
- Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC)…
- Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC)…
- U90 - Parts Ordering
- "2.4L Excessive Oil Consumption XB1 Warranty Extension The customer may describe one or more of the following
- U90 Parts Ordering
- "Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC)…
Repair videos
We do not copy videos: these are YouTube links credited to their authors. Amounts are as stated by the author and not verified by us.
- I bought this 2018 Fiat 500X Trekking From IAA Insurance Auction Rebuild!amount per author: 600 UNSPECIFIED_DOLLAR
- Keep Your 2016 Fiat 500X Running Smooth With DIY Repairs
- 2016 Fiat 500X Problems and Recalls
- 2016 Fiat 500X | Forward Collision Warning
- 2016 FIAT 500X. 4 OWNERS. 7 SERVICES. ULEZ COMPLIANT. 3 MONTHS WARRANTY. £3495.
- Part 8 of #fixing #fiat500x #2017 #carrepair #diy #carmaintenance #husbandwife #italiancar
Other models of this make
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.