NHTSA Complaint #11553985 — 2018 KIA OPTIMA

The contact owns a 2018 Kia Optima. The contact stated that while driving at an undisclosed speed, the vehicle stalled and jerked. The vehicle was towed to the dealer where it was purchased from. The contact was advised that the vehicle would be towed to a Kia dealer for service. The vehicle was towed to the Kia dealer and diagnosed with failed spark plugs. The contact was informed that the spark plugs needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The vehicle was towed back to the Kia dealer and the contact was informed that the spark plugs were corroded due to oil consumption and the spark plugs needed to be replaced. The contact was also informed that the engine needed a combustion cleaning. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was unknown.