2021 Kia Forte Transmission and drivetrain Problems

“The transmission went out while driving, entering the highway. It was intermittently missing a gear or slipping in about 2nd or 3rd gear. I first noticed it going about 40 mph and trying to accelerate to highway speeds. It was during a winter storm and other vehicles behind me had to brake unexpectedly. I wasn't sure if I felt for sure, so I continued to drive through many inclines and declines. The inclines became more difficult and the inability to maintain consistent speeds. …”

“The issue I’m having was confirmed by the dealership so when I drive on the highway, there’s a specific patch of highway that zigzags the car will follow that zigzag after getting off of the highway onto regular road. The car computer system will start a down shift erratically and feel like the car is pulling backwards. Also there is a lack of acceleration and it feels like the transmission is slipping, but I have confirmed with the dealership that the transmission was not slipping that the computer was shifting erratically. …”

“It seems the car may have a defect in the transmission(Dual Clutch). The car makes at times an abrupt stop, for like a second or two, after I press on the gas. When I'm driving, especially at low speeds I can hear the transmission's parts make a grinding sounds, loud clicks. When I'm breaking, it's not smooth at all; I feel the car pulling a bit when switching to lower gears during the breaking process. When I have the car on and not moving (i.e parked), I can hear sounds emanating from the bottom of the car, like parts grinding against other parts. …”

“Vehicle has issues where transmission actuator will stop functioning causing sudden loss of acceleration. Was doing 70 MPH in expressway and vehicle stopped accelerating. Issue has occurred two times, both times being serviced by Dealership, after receiving the vehicle back, issue still persists, vehicle lost acceleration suddenly when turning into a intersection.”

“The contact owns a 2021 Kia Forte. The contact stated while driving 70 MPH, the vehicle started to decelerate while the RPM increased. The contact pulled over to the side and notice the vehicle smoking but there was no fire. There were no warning lights illuminated. The contact towed the vehicle to a local dealer, where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was repaired however, the failure persisted. The manufacturer was informed of the failure. The failure mileage was 35,642.”