Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2014 Kia Optima owners, lightly cleaned up (personal details are redacted by NHTSA).
March 15, 2023 I Ania Covington as well as my mother Ramona Allen went to the Kia dealership in Southern Pines, NC at 10am to get a recall fixed on my car (fuel line), an oil change, air filters changed, as well as a valve gasket replacement (recall was free, everything else paid out of pocket). I received my car back at 4pm the same day, when I pulled off the lot not even a mile away my car was smoking from the exhaust pipes. I went back to ask them was it going to continue to do that, the mechanic as well as the advisor told me it's just the old oil burning off. As I was driving home I began seeing smoke come from my engine as and still from the pipes I was still thinking it was the old oil burning off hence that's what I was told. I decided to go to the gas station to get gas for the remaining of the week, and my car burst into flames while I was pumping gas. …
The contact owns a 2014 Kia Optima. The contact received notifications of NHTSA Campaign Numbers: 20V10000 (FUEL SYSTEM, GASOLINE) and 21V331000 (SERVICE BRAKES, HYDRAULIC). The contact stated that while driving at an undisclosed speed, there was an abnormal fuel odor coming from the engine and entering the cabin of the vehicle through the A/C vents. The check engine warning light and ABS warning light was illuminated. The contact stated that on a separate occasion, while driving at an undisclosed speed, the vehicle stalled. The contact became aware that the vehicle was out of fuel. The contact added five gallons of fuel, and the vehicle stalled several miles down the road. The vehicle had again run out of fuel. The contact noticed that fuel was leaking from the vehicle. The vehicle was towed to the dealer, but was not diagnosed or inspected. …
The contact owned a 2014 Kia Optima. The contact stated that while the vehicle was parked in the garage, the vehicle had begun to burn. The fire department was called and the vehicle fire was controlled using water to extinguish the flames. The contact stated that the fire department filed a report. The contact stated that the vehicle was towed to an impound lot and had not been examined by a dealer or insurance adjuster. The manufacturer was informed of the failure. The contact was aware of one recall associated with the VIN, NHTSA Campaign Number: 21V331000 (Service Brakes, Hydraulic), however there were a total of three recalls - NHTSA Campaign Number: 18V907000 (Fuel System, Gasoline, Engine), and NHTSA Campaign Number: 20V100000 (Fuel System, Gasoline). The contact stated that she was not aware of the other two recalls. The failure mileage was unknown.
The contact owns a 2014 Kia Optima. The contact received notification of NHTSA Campaign Number: 20V100000 (Fuel System, Gasoline) and 21V331000 (Service Brakes, Hydraulic) however, the parts to do the recall repairs were unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The contact stated that the dealer stated that the vehicle would not receive the recall repair for NHTSA Campaign Number: 21V331000 (Service Brakes, Hydraulic) until parts for 20V100000 was available, and the repair was completed. The contact stated that the vehicle was leaking fuel and emitting a fuel odor within the cabin of the vehicle. There was no warning light illuminated. The approximate failure mileage was 103,748. The manufacturer was made aware of the failure. Parts distribution disconnect.
The contact owns a 2014 Kia Optima Hybrid. The contact stated that while driving at approximately 75 MPH, the steering and brakes became inoperable. The vehicle began to coast and stopped. While driving, the vehicle shut off and failed to move. The hybrid system warning light was illuminated for approximately one minute. The vehicle was towed to the local dealer, where the fuse and brakes were changed. The vehicle was repaired, but the failure recurred. The vehicle was taken to another local dealer, Regal Kia (1025 Bartow Rd., Lakeland, FL 33801), where there was an unknown diagnosis provided. The vehicle was repaired, but the failure persisted. The manufacturer was contacted and opened a case. The failure mileage was approximately 62,348.
The contact's husband owns a 2014 Kia Optima. The contact stated that the check engine warning light was illuminated on the instrument panel. Her husband had taken the vehicle to an independent mechanic where a diagnostic test was performed and the fuel cap was replaced; however, the check engine warning light remained illuminated. The vehicle was taken back to the independent mechanic for a second diagnostic test and the contact was informed that fuel was being consumed excessively; he was referred to the manufacturer for assistance. The contract called a dealer and was provided an appointment. The manufacturer was also notified of the failure. The vehicle was not repaired. The failure mileage was 150,000.
UNKNOWN.. but the first time anything actually happen i was driving on the highway and all of a sudden I started to smell something weird and all the safety lights turned on the engine started smoking my acceleration wasn't working I can't put it in neutral nothing else is working I got lucky I was able to pull off to the side of the highway we where in a very dangerous spot the car wouldn't start back up at all and I have no communication we were stuck there for 3 hours until my dad found finally found us because he knew something was off why we weren't home for so long a close friend have to my house and that's words been parked ever since
The contact owns a 2014 Kia Optima. The contact stated while driving 65 MPH, the vehicle decelerated to 60 MPH, and was unable to accelerate as needed. The contact pulled over to the shoulder of the roadway. The check engine warning light was illuminated. The vehicle was towed to an independent mechanic, who diagnosed a failure with the knock sensor. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 22V093000 (Fuel System, Gasoline) but the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was 165,000.
The car is available upon inspection, the car caught on fire after being driven for about 45 mins. Smoke started to come from under the car hood, fire starting dropping from underneath the vehicle and then fire started coming from under the hood of the car. The car started smoking while being inside vehicle and the fire could've spread. The fire was put out by the fire department, the vehicle has not been inspected as of yet. No warning signs.
On 7/13/26 around 0715 my son was driving our 2014 Kia optima when it caught fire and burned from the engine to the back of the car. Fire dept and law enforcement had to respond and the vehicle along with thousands of dollars of property was destroyed by the fire. This vehicle is a total loss and I'm trusting an investigation as to I believe their fire started due to the engjbe and electrical faults of Kia motors.
Related recalls
Fuel system, gasoline › Delivery › Hoses, lines/piping, and fittings
Kia Motors America (Kia) is recalling certain 2013-2014 Optima vehicles that were previously repaired under NHTSA recall number 20V-100. The low pressure fuel hose may be damaged, or missing heat-protective tape, which can result in a fuel leak.
Remedy: Dealers will replace the low pressure fuel hose, free of charge. Owner notification letters were mailed August 2, 2022. Owners may contact Kia customer service at 1-800-33-4542. Kia's number for this recall is SC228.
Fuel system, gasoline › Delivery › Hoses, lines/piping, and fittings
Kia Motors America (Kia) is recalling certain 2013-2014 Optima vehicles equipped with 2.4L Gasoline Direct Injection (GDI) or 2.0L GDI Turbo engines. The low pressure fuel hose may deteriorate and crack over time due to heat generated within the engine compartment.
Remedy: Kia will notify Owners, and Dealers will inspect the low pressure fuel hose for damage or leaking, replacing it as necessary. If no damage or leaking is found, a heat-protective tape will be installed.
Fuel System complaints in other Optima years
Frequently asked questions
How common are fuel system problems on the 2014 Kia Optima?
NHTSA has 49 complaints about the fuel & propulsion system of the 2014 Kia Optima, 8% of the model year's 590 complaints.
Is there a recall for 2014 Kia Optima fuel system problems?
Yes — NHTSA recall 22V-093 (hoses, lines/piping, and fittings, Feb 17, 2022); NHTSA recall 20V-100 (hoses, lines/piping, and fittings, Feb 21, 2020). Recall repairs are free at authorized dealers.
At what mileage do 2014 Kia Optima fuel system problems start?
Half of the complaints with a recorded mileage happened before about 85,000 miles, and 18% before 25,000 miles.
Is it dangerous?
Owners linked 3 crashes, 10 fires and 8 injuries and 2 deaths to fuel & propulsion system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.