2020 Kia Niro Engine Problems

“The service engine valve with check active air flap system error message is displayed. The diagnostic error that comes up is aaf - p059f. According to the dealer air compression test were completed and properly functioning. I have submitted 3 pictures with the same error message code to the dealer and they state not all saved in the car's ECM. The lights came on when starting as well as while driving. Noticed that the car takes longer to change gears or go into EV mode.”

“I had my oil changed in Dec. 2025. I drove 1000+ miles w/no issue. Engine suddenly seized w/no engine light warning. Oil dumped all at once. Kia refuses to cover under warranty. THIS HAPPENED TO MY CAR: NTSA announced it had launched an investigation into Hyundai Motor Company and Kia Motor Company for problems with their oil pans and oil drain plugs... consumers have filed complaints their engine’s oil drain plug falls out, causing all the oil to drain out of their engine while driving. …”

“Engine Seized at 79,000 miles on Kia Niro Hybrid on 3/8/2025. Oil was changed at 78,225 miles on 12/16/2025. No issues with vehicle until approx. 1,000 miles later and just a month and a half later when car suddenly lost power on a highway forcing me to try to safely and quickly navigate off the road. This could have caused risk to my life and other lives. The car could not be restarted. Kia said the drain plug was not screwed on and is refusing to honor warranty despite no issues with the oil change. …”

“2020 Kia Niro was driving fine until one day while driving down the highway at highway speeds (65-70 mph), the car began to lose power and as we switched lanes to get to the side of the highway, the car began to smoke and caught on fire. Our safety was at risk due to the car catching on fire. The problem is unable to be reproduced as the car is a total loss. Vehicle was inspected by police at the scene. There were no warning lights, and the vehicle had been in working condition prior to the incident. …”

“My vehicle was the victim of attempted theft and reported to City of Cincinnati police 8/11/23. It then underwent repairs and delays before it was returned to me on 9/22/23. The left side rear door is basically detached from the system, causing the alarm to go off or not even work. The back seat lock is completely malfunctional, and there is glass remaining inside the car. I was informed by two separate Kia locations that they would contact me about repairs. On 9/29, notice attached here, I was informed that when a remedy is available, they will repair and cover the costs. …”