AI Damage2018 Fiat 500X: common problems
Owners of the 2018 Fiat 500X filed 11 complaints with NHTSA, most often about engine and electrical system. The maker issued 87 service bulletins for this year. We found 1 repair videos on YouTube. Details by component below, with sources.
Key figures
- Owner complaints
- 11
- Technical service bulletins (TSB)
- 87
- YouTube repair videos
- 1
What fails most often
- 1 Engine 64% of all complaints
- 2 Electrical system 45% of all complaints
- 3 Powertrain 36% of all complaints
- 4 Fuel/propulsion system 18% of all complaints
- 5 Service brakes 18% of all complaints
- 6 Structure 9% of all complaints
- 7 Vehicle speed control 9% of all complaints
- Engine: 7 complaints (64% of all); manufacturer bulletins for this component: 6.
- Electrical system: 5 complaints (45% of all); manufacturer bulletins for this component: 33.
- Powertrain: 4 complaints (36% of all); manufacturer bulletins for this component: 6.
- Fuel/propulsion system: 2 complaints (18% of all).
- Service brakes: 2 complaints (18% of all).
Symptoms owners describe
How many of the 11 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 | 7 | 0 | 6 |
| Electrical system | 5 | 0 | 33 |
| Powertrain | 4 | 0 | 6 |
| Fuel/propulsion system | 2 | 0 | 0 |
| Service brakes | 2 | 0 | 0 |
| Structure | 1 | 0 | 4 |
| Vehicle speed control | 1 | 0 | 0 |
| Equipment | 0 | 0 | 23 |
| Engine and cooling | 0 | 0 | 21 |
| Air bags | 0 | 0 | 2 |
| Suspension | 0 | 0 | 2 |
| Backover prevention | 0 | 0 | 1 |
| Fuel system | 0 | 0 | 1 |
| Lane departure | 0 | 0 | 1 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Driver side door handle broken. Started sticking and being hard to pull/open and when open would stick in the out position and not latch shut unless pushed back in. Soon after it broke, suspected handle hinge malfunction, cannot be opened from the outside. Multiple other complaints about door handles on 500’s.
THE Transmission Valve Body Solenoid was diagnosed as not working. while i was driving on the highway without any indication the car just started slowing down . There was not a warning or anything, then the transmission service lights up, i had to have my car towed to a dealership however they informed me that there…
The minute I apply the break my car would lose power, stall out or shut off completely. I would press the start button, release the break, shift the gear to drive and proceed forward.
I was not aware there was an open recall on this vehicle for an oil consumption issue. The dealer did not tell me and I received no notice from Fiat/Chrysler over the next two years. I began having a problem with the engine cutting out as I was driving down the road without any warning.
Vehicle electric components like radio and parking camera would shut off and not come back on without warning or while using camera. Car now gives warnings of vehicle temperature too high
We had several instances were the car bucks when transmission shifts. Was taken to dealer and updates were made and had no issues until again it has started again. Not all the time but every once in a while. At sunset now but unable to duplicate problem. This is not the first issue we have had.
Full speed forward collision warning plus does not function properly. Warning and breaks never activate even if 1 foot from car in front.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 1,457 of 2,102 model years in the NHTSA data (among the 31% least complained about).
On average one model year of the 500X has 23 complaints (8 years in the data). This year has 11, below average.
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.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
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) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning…
- 948TE Transmission Reaction Shaft Service Bushing Kit Customers may experience a Malfunction Indicator…
948TE Transmission Reaction Shaft Service Bushing Kit Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1DB7-00…
- Verify Reman part number availability. Order the "R" part number for all orders
- "2.4L Excessive Oil Consumption XS1 Warranty Extension The customer may describe one or more of the following
● Oil pressure low indicator lamp illumination between oil changes. ● Excessive oil consumption This bulletin involves performing an oil consumption verification test and possibly replacing the long block. "
- "2.4L Excessive Oil Consumption XB1 Warranty Extension The customer may describe one or more of the following
● Oil pressure low indicator lamp illumination between oil changes. ● Excessive oil consumption. This bulletin involves performing an oil consumption verification test and possibly replacing the long block."
- "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) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning…
- Air Bag Warning Lamp Illumination Customers may experience a Malfunction Indicator Lamp (MIL) illumination
Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) has been set: ? B0050-1D - Driver Front Buckle Switch - Out of Range (Active or Stored). ? B0050-13…
- Connector kit Before ordering this connector repair kit 68018957A$, check it in the Mopar Connector Repair…
Connector kit Before ordering this connector repair kit 68018957A$, check it in the Mopar Connector Repair Kit Website to confirm part number and applicability. There is an error with the wiring diagrams in Service…
- LIFTER, Hydraulic Roller Deactivating Please do not replace MDS lifters because the disconnecting pin is…
LIFTER, Hydraulic Roller Deactivating Please do not replace MDS lifters because the disconnecting pin is not lined up, this is normal and not a defect.
- Air Bag Warning lamp Illumination Customers may experience a Malfunction Indicator Lamp (MIL) illumination
Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) has been set: ? /B0050-1D - Driver Front Buckle Switch - Out of Range (Active or Stored). ? B0050-13…
- FCA Caribbean Warranty Bulletin ID-23-20 "Can / Am" Warranty Coverage - 594 / 595 / 596 WCC
- Warranty Bulletin D-16-03 - "Can / Am" Warranty Coverage - 594 / 595 / 596 WCC (Rev
NHTSA lists 87 bulletins for this year; the 12 newest are shown here.
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
Other years of this model
Questions and answers
What are the most common problems with the 2018 Fiat 500X?
Owner complaints to NHTSA most often mention: engine, electrical system, powertrain. Total complaints: 11. The most frequent symptoms in complaint texts: oil leak or consumption (27%), driver assists: adaptive cruise, lane keeping (9%), door locks, latches, handles (9%).
How many service bulletins (TSB) were issued for the 2018 Fiat 500X?
NHTSA lists 87 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2018 Fiat 500X from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2018 models
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.