Vehicle Data Hub

2019 Kia Optima fuel system problems

18 complaints about fuel system have been filed for the 2019 Kia Optima, which is 5% of all its NHTSA complaints.

At a glance

Complaints
18 6% of this year's complaints
Crashes and fires
0 and 1
Injuries and deaths
0 and 0

Source: NHTSA owner complaints

What the data shows

These complaints mention 1 fire.

What owners wrote

After routine maintenance replacing the valve cover gasket, the low pressure GDI fuel line developed a leak in an area away from where the maintenance had occurred. After a 10 minute drive, the car developed a fire in the engine compartment. Upon investigation by an independent auto mechanic, it was determined that the fuel line had become brittle and developed a crack that had sprayed fuel into the hot surfaces of the engine compartment.

December 2025 Fire

The contact owns a 2019 Kia Optima. The contact stated that there was an abnormally strong fuel odor coming from the vehicle. The contact stated the fuel odor was stronger on the rear driver's side, where the gas tank was located. The used car dealer from whom the vehicle was purchased was notified of the failure. The vehicle was not diagnosed or repaired by an independent or dealer. The manufacturer was not notified of the failure. The failure mileage was approximately 95,658.

Reported at 95,658 miles, May 2025

Other problems reported for the 2019 Kia Optima

Fuel system problems in other years

Fuel system problems across all Kia models