What 119 owners told NHTSA about the 2025 Kia Carnival Hybrid Hev

We have been having persistent safety issues with this vehicle. The issues have ranged from unsecured gas cap to loss of power. We’ve also had severe transmission issues where the car will not shift out of first gear. This happened on the Garden State Parkway and nearly caused an accident as the car wasn’t able to go above 27 mph safely.

NHTSA ODI 11740593

For the third time the 2025 KIA Carnival Prestige I own lost power while driving on the interstate! Without warning, the vehicle would no longer respond to the accelerator pedal. No matter what I did I could not get the vehicle to accelerate past 35 mph. The minimum speed limit on the interstate is 45 mph. I had to immediately engage my hazard lights and make my way over to the shoulder of the road from the passing lane. This was a dangerous situation for me and my family and others on the highway. Warning lights came on, check engine light, charging system, and a maintenance service message. Driving in Sport mode, Smart mode, nor Econo mode could change the negative situation. This took place multiple times during the final leg of my last trip to [XXX] , extending for over 120 miles. This is a very unsafe, unreliable vehicle, that should never be driven on public roadways… especially not highways nor interstates. Three negatively, traumatic experiences is ENOUGH!!! I’m DONE!!!! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11740406

I was stopped in in the left turn lane with my right foot on the brake pedal. Suddenly the car began to rapidly move forward. I jammed my right foot down and stopped the car, avoiding an accident.

NHTSA ODI 11695410