I was driving myself and two passengers on a highway at night in the rain. I was using the adaptive cruise control and was maintaining speed when i went through a puddle and I think the car hydroplaned a little. A warning sign flashed up on the dash that said something towards "deactivating cruise control" - i am not sure of the exact warning. I've had a warning similar, im not sure if its the exact same, when the adaptive cruise control turns off in traffic and it slows down and turns itself off. But when it turned off this time after the puddle I tried to take control of the car and the gas pedal was completely unresponsive. Pedal to the metal, nothing. I was, thankfully, the only car in sight, so i was able to change lanes and check my brakes, which worked, and coasted/braked my way off the shoulder. I turned the car off and then back on and the car and pedal responded normally.

- Falmouth, MA, USA

The contact owns a 2018 Kia Niro. The contact stated while driving at an undisclosed speed, the engine revved up. The contact stated that the accelerator pedal was depressed; however, the vehicle was slow to respond. Eventually, the vehicle shifted into gear and started to move. The contact stated that the check HEV and turn off engine error messages were displayed. The vehicle was taken to the local dealer, where it was diagnosed that a faulty engine clutch activator needed to be replaced. The mechanic informed the contact that the vehicle was not covered under a recall. The vehicle was not repaired. The contact stated that the failure was related to NHTSA Campaign Number: 23V534000 (Power Train). The manufacturer was not contacted. The failure mileage was approximately 120,000.

- Mebane, NC, USA

The car can slow down suddenly in the middle of traffic even if I accelerate. The engine has a problem according to the mechanics who was trying to fix my car twice without succes. The car does not hold coolant liquid for more than 15 minutes. It looks like the coolant is staying somewhere in the engine. It overheats too. Yes the car is available for inspection upon request. It's a high risk because the car can suddenly slow down in the middle of traffic or when leaving a light turned green. And the last time I drove it there a weird smell. Yes, an independant service center located at College Park Maryland informed me about the issue. The vheicle or compenent has not been inspected yet by the manufacturer, police, insurance representative or others. When the car starts slowing down in the middle of traffic, I feel a kind of vibration first on the gas peddale and comes up the engine light. This happened last month

- Silver Spring, MD, USA

I was driving on the freeway. After slowed down and stopped completely, suddenly it lose power to run. Trying to step deeper the gas pedal, but no reaction at all. After turn off and turn on engine few times, it can run again, but this time, the real problem occur. The engine sounds so loud..it's hybrid car supposed to so quiet (that's what sounds usually). Later on, I found out how to still can drove it, but with high risk suddenly lose power on the street. Later found out, when the car in motion, the hybrid system didn't worked completely, and the transmission sound very rough. Every time when come to brake or want to slow down, can feels obviously and heard the transmission is very rough making clutch loud sounds. The cruise control system also totally not function. When in stationary, very first when started the engine, made loud sounds on the engine, and can't reversed or move forward, just stayed in place. The dashboard display "check hybrid system". and on the middle screen displaying, "low voltage DC / DC converter".

- Covina, CA, USA