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2018 Fiat 500X Owner Complaints

Updated May 30, 2026
Daniel Wilson

Complaint Summary

The 2018 Fiat 500X has 22 reported complaints.

  • Top issues involve engine and electrical system.

Reliability Score

Reliability Score

7.7/ 10

Based on 22 complaints

Most Frequent Issues

ENGINE

7 31.8%

ELECTRICAL SYSTEM

5 22.7%

POWER TRAIN

4 18.2%

SERVICE BRAKES

2 9.1%

FUEL/PROPULSION SYSTEM

2 9.1%

Quick Insights

  • The top category is ENGINE, accounting for 31.8% of all complaints.

  • Owners have reported issues across 7 distinct vehicle systems.

  • Note: Complaint data reflects owner reports and may not always indicate a verified defect. Compare with Recalls and TSBs for a complete picture.

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Complaint Summary

What owners keep reporting on the 2018 Fiat 500X

The 2018 Fiat 500X has 22 owner complaints in this dataset. ENGINE is the most common complaint category, representing about 32% of the reports shown here.

Most common complaint categories

The top complaint groups for the 2018 Fiat 500X are ENGINE (7), ELECTRICAL SYSTEM (5), POWER TRAIN (4).

Are these complaints a serious red flag?

Potentially. 16 complaint reports involve higher-attention systems like brakes, steering, engine, powertrain, fuel, suspension, airbags, or electrical components, which is enough to justify a focused inspection.

What should buyers inspect on a used 2018 Fiat 500X?

Start with the top complaint systems, compare them against the recall report, then inspect service records for evidence that those same areas were already repaired or monitored.

Read the full buyer guideRecall report and remedy notesMaintenance costs and intervals2017 500X complaints2019 500X complaints2020 500X complaints

Detailed Complaint Log

Showing 7 of 7 systems

ENGINE

7 Reports32% of total

Previewing the first 2 complaint summaries.

AFTER 10,000 MILES THESE ISSUES STARTED TO OCCUR. WE WERE QUOTED THE ENGINE EXPERIENCED THESE ISSUES DUE TO THE ENGINE BURNING OIL. THE CAR SPUTTERS, IT IS SLUGGISH, WHILE DRIVING IT LOSES POWER AND IS SLOW TO PICK UP OR DOESN'T PICK UP AT ALL. WE SLOWED DOWN DRAMATICALLY WHILE DOING 60 ON THE HIGHWAY.. THIS COULD HAVE CAUSED US TO HAVE AN ACCIDENT. VERY DANGEROUS.

3/27/2019

I contact Chrysler Corp regarding the NHTSA recall notice and provided corporate with the recall notice number and was told that the recall was not applicable to my Fiat 500x. However corporate asked where the vehicle was being serviced. When The service was completed the statement from the dealership indicated that the NHTSA recall had been completed. Additionally I purchased the vehicle new in April 2018 and did not receive the Aug 2018 recall notice. While i was merging into the turning lane my car slowed itself down and then just stopped at the time my car was still able to run but i was not able to shift the gear and put it into neutral at the time the police officer showed up to help us move the car onto the side we had to push the car because we were still unable to move the gear shift then the tow driver arrived and after lots of difficulty was barely able to shift the gear but at that time was able to put the gear in neutral and even while in neutral my car would not move once we got to the dealership and let the dealership put oil into the car because we were told that could be the possible issue though we this was on Thursday and on Friday we received a call from the dealership explaining to us that it was not an oil issue but a mechanical one skip to Saturday we go to the dealership to meet with the tow so we can get the car to a fiat dealership but once on we were unable to turn the car off as everything was not functional on the car including the lock and unlock system i was not able to press down on the break it was lock and every warning within the fiat guide book flashed and i was unable to turn the car off this was the same result for others who had tried as well My engine locked in the merge lane

7/23/2021

5 more complaints are available in this category.

ELECTRICAL SYSTEM

5 Reports23% of total

Previewing the first 2 complaint summaries.

AFTER 10,000 MILES THESE ISSUES STARTED TO OCCUR. WE WERE QUOTED THE ENGINE EXPERIENCED THESE ISSUES DUE TO THE ENGINE BURNING OIL. THE CAR SPUTTERS, IT IS SLUGGISH, WHILE DRIVING IT LOSES POWER AND IS SLOW TO PICK UP OR DOESN'T PICK UP AT ALL. WE SLOWED DOWN DRAMATICALLY WHILE DOING 60 ON THE HIGHWAY.. THIS COULD HAVE CAUSED US TO HAVE AN ACCIDENT. VERY DANGEROUS.

3/27/2019

FULL SPEED FORWARD COLLISION WARNING PLUS DOES NOT FUNCTION PROPERLY. WARNING AND BREAKS NEVER ACTIVATE EVEN IF 1 FOOT FROM CAR IN FRONT.*DT

6/19/2019

3 more complaints are available in this category.

POWER TRAIN

4 Reports18% of total

Previewing the first 2 complaint summaries.

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. FIRST IT WAS THE FUEL TANK

8/27/2020

There is an active recall for the power train control module for this car but it is not showing up in the NHTSA list. https://static.nhtsa.gov/odi/rcl/2018/RCRIT-18V524-1313.pdf identifies the specific recall for the powertrain control module for the Fiat 500X https://www.nhtsa.gov/vehicle/2018/FIAT/500X/SUV/2WD#recalls lists the recalls done for the vehicle and it does not list the powertrain control module recall issue. We just bought this car from CARMAX and looks like this campaign recall fix was not listed on the site so they didn't address it and now the car wont work or run. If the recall was listed by the VIN they would have been required to fix before selling.

9/5/2023

2 more complaints are available in this category.

SERVICE BRAKES

2 Reports9% of total

Previewing the first 2 complaint summaries.

FULL SPEED FORWARD COLLISION WARNING PLUS DOES NOT FUNCTION PROPERLY. WARNING AND BREAKS NEVER ACTIVATE EVEN IF 1 FOOT FROM CAR IN FRONT.*DT

6/19/2019

Car continuously throttled while driving on highway and road with no warnings. 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

1/27/2023

FUEL/PROPULSION SYSTEM

2 Reports9% of total

Previewing the first 2 complaint summaries.

2021 Car failed RECALL OIL CONSUMPTION test twice at local dealership. Sept 2021 dealership said replaced a part. Oct 2021, when leaving a gas station car would not start, dashboard was flashing symbols and died, would not start, after 1/2 hr car bucked to house 6 blocks away. Yes car is available for inspection. Feb 2022 car died twice in middle of busy street with a 18wheeler almost ramming me in back, oil symbol briefly flashed then car died, couldn't even pull over to side, very frightening experience for at 73 yrs old. After 1/2 hr or so was able to return home, next day drove to dealership they said no oil in car, tapped it off, but I had just got an oil change and driven only 1798 miles. Problem has been confirmed and test done 3 times to qualify for motor replacement. OIL Warning Lamp does not stay on, only a brief flash. 3 Fail tests but has not been included in RECALL OIL CONSUMPTION.

5/22/2022

There is an active recall for the power train control module for this car but it is not showing up in the NHTSA list. https://static.nhtsa.gov/odi/rcl/2018/RCRIT-18V524-1313.pdf identifies the specific recall for the powertrain control module for the Fiat 500X https://www.nhtsa.gov/vehicle/2018/FIAT/500X/SUV/2WD#recalls lists the recalls done for the vehicle and it does not list the powertrain control module recall issue. We just bought this car from CARMAX and looks like this campaign recall fix was not listed on the site so they didn't address it and now the car wont work or run. If the recall was listed by the VIN they would have been required to fix before selling.

9/5/2023

VEHICLE SPEED CONTROL

1 Report5% of total

Previewing the first 1 complaint summaries.

AFTER 10,000 MILES THESE ISSUES STARTED TO OCCUR. WE WERE QUOTED THE ENGINE EXPERIENCED THESE ISSUES DUE TO THE ENGINE BURNING OIL. THE CAR SPUTTERS, IT IS SLUGGISH, WHILE DRIVING IT LOSES POWER AND IS SLOW TO PICK UP OR DOESN'T PICK UP AT ALL. WE SLOWED DOWN DRAMATICALLY WHILE DOING 60 ON THE HIGHWAY.. THIS COULD HAVE CAUSED US TO HAVE AN ACCIDENT. VERY DANGEROUS.

3/27/2019

STRUCTURE:BODY

1 Report5% of total

Previewing the first 1 complaint summaries.

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. Requires using passenger door to enter vehicle or leaving driver side window down to open from interior handle. Huge safety concern.

2/17/2025

About This Data

Data and Methodology

MethodologyHow we score →

Scores are derived from NHTSA recalls and owner complaints, normalized by vehicle segment averages.

FAQ

What are the most common owner complaints for the 2018 Fiat 500X?

The most reported complaint category for the 2018 Fiat 500X is ENGINE, with 7 owner reports. That is about 32% of all complaints logged here. Other recurring themes include ENGINE, ELECTRICAL SYSTEM, POWER TRAIN.

Are complaints about the 2018 Fiat 500X a serious warning sign?

Potentially. 16 complaint reports fall into higher-attention systems such as brakes, steering, engine, powertrain, fuel, suspension, airbags, or electrical components. That does not prove every vehicle has a defect, but repeated complaints in those systems justify a more careful pre-purchase inspection.

How should buyers use complaint data for the 2018 Fiat 500X?

Use complaints as an early pattern to investigate, not a standalone verdict. Start with the top complaint categories, compare those themes against the recall report and maintenance guide, then inspect service records for evidence that the same problem areas were already addressed. If the same issue appears repeatedly across complaints and recalls, treat it as a real ownership-risk flag.

Are complaints about the 2018 Fiat 500X severe?

16 complaint reports involve higher-attention systems such as brakes, steering, engine, powertrain, fuel, suspension, airbags, or electrical components, which is enough to justify a focused inspection before purchase.

Complaint list entries are sourced from owner-submitted NHTSA ODI records.

Read complaint summaries

Fiat 500X: How should complaint data influence buying decisions?

Use complaint patterns together with recalls and maintenance guidance to estimate ownership risk and inspection priorities.

Carfocal links complaint data directly to recall and maintenance routes for the same model year.

Return to full vehicle report
Complaint entries
22
Top-topic view
5 grouped topics shown
Primary source
NHTSA ODI owner complaint records

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In this guide

  1. 01Overview
  2. 02Common Problems
  3. 03Owner Complaints
  4. 04Data and Methodology

Start here

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