*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Air bagsCrashFire3 injuries
The contact owns a 2016 Fiat 500X. The contact stated that while driving approximately 30 MPH through a green light, another vehicle driving through a red light and attempting to make a turn, the front bumper of the contactâs vehicle crashed into the front passengerâs side door. 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 contact sought medical attention for whiplash, chest pain, bruises, a sore stomach, swollen right leg, and left leg. The contact's front seat passenger sought medical attention…
Apr 2, 2026 · 96,000 milesEngine
3 times my car had died going under 30 mph, it must turns off or goes into this neutral position and wonât let me change gears, when i restart it, the engine makes an awful squealing sound. all these âdrive mode unavailable â âcheck esc systemâ âservice electronic brakeâ it seems it is related to the S55 / 16V529000 safety defect â¦. âintermittent switch to neutral while drivingâ
Jun 14, 2026Electrical system › Ignition
The contact owns a 2016 Fiat 500X. 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. Additionally, the contact stated that the brake pedal was extremely firm and difficult to depress while attempting to start the vehicle. The vehicle was taken to a dealer, but the cause of the failure was not determined. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 80,000.
Jun 1, 2023 · 80,000 milesElectrical system
I was driving vehicle and it all of a sudden get stuck in gear in either park gear or some other gear that wont allow me to turn engine off. Sometimes it just slow down to a stop and will not go into gear again for a while or appears the gears are not engaging putting me at risk for accident on highway. Once it slowed down in traffic and I nearly got hit trying to drive it off the highway. The gears were not engaging putting me at risk of many vehicles hitting me. I was praying someone noticed I had car trouble to slow down as I was no longer in full control of vehicle. After some
May 1, 2026Unknown or other
I received a letter stating that there was a recall emissions/catalyst efficiency,I have called a fiat dealership several times to get this fixed and it never did, now I am seeing that there is no recall now. So I'm confused on what's going on. U90 is the emissions recall number.and letter said there are others w80
Apr 5, 2025Unknown or other
I am submitting this complaint to report a failure related to an emissions recall repair. The vehicle identified by VIN [XXX] was fully operable, properly maintained, and in excellent condition prior to an emissions recall repair performed by an authorized dealership. Immediately after the recall âfixâ was completed, the vehicle began experiencing serious operational problems and became undrivable. The servicing dealership towed the vehicle and attempted an additional repair. After the vehicle was returned, it failed again on its first use and is now completely inoperable. Despite the fact that this failure occurred only after the recall repair, the dealership and manufacturer are…
Jan 2, 2026Power train
The contact owns a 2016 Fiat 500X. The contact stated that while driving at an undisclosed speed, the transmission unintendedly shifted from drive(D) to neutral(N). The RPM became elevated; however, the vehicle failed to accelerate as intended. While driving approximately 15 - 20 MPH, the vehicle went into LIMP Mode. While in LIMP Mode, the contact coasted to the side of the road and waited for several minutes before continuing to drive. The failure had occurred twice. Additionally, the check engine warning light illuminated intermittently. The vehicle had been taken to a certified mechanic, who determined that the transmission had failed and needed to be rebuilt. The dealer also diagnosed…
Dec 22, 2025 · 144,000 milesPower train
Car suddenly slowed down while driving on Christmas Day. This was a very unsafe situation because I was on the highway in traffic traveling at 70 miles per hour and the car suddenly slowed down which could have resulted in an accident leading to harm. A warning light then came on to service transmission right as the car slowed down. I Tried to step on the gas pedal and it would not accelerate. There was no warning light prior to this incident. The car was towed to the dealership the next day. On the following Monday we were told the transmission needs to be completely replaced after they completed a diagnosis test. Enclosed is a pic of the invoice.
Dec 25, 2025
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.