The contact owns a 2023 Kia Seltos. The contact stated that while driving at an undisclosed speed, there was gray smoke coming from the exhaust pipe. The vehicle was taken to the dealer; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that the vehicle stalled on the drive back to the residence. The contact stated that on a separate occasion, while driving 70 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The contact stated that the RPM fluctuated, and the engine revved with gray smoke coming from the exhaust pipe. The check engine warning light was illuminated. The contact was able to coast to the side of the road and waited ten minutes before restarting the vehicle; however, the failure reoccurred a short distance afterwards, with the vehicle vibrating abnormally, and the vehicle failed to accelerate as intended while depressing the accelerator pedal. The vehicle was pulled into a parking lot and stalled. The vehicle was restarted and driven to the workplace where the vehicle stalled after being parked. After work, the contact drove the vehicle to the residence. The contact stated that while driving 30 MPH, the vehicle jerked and vibrated, and gray smoke was coming from the exhaust pipe, and the vehicle failed to accelerate as intended while depressing the accelerator pedal. The RPM fluctuated, and the engine revved. The contact was able to arrive at the residence, and the vehicle stalled. The vehicle was taken to the dealer, where it was diagnosed that the oil level was low and that there was a misfire in the engine. The vehicle remained at the dealer unrepaired. The contact was informed that an unknown part was clogged. The dealer changed the oil. The manufacturer was notified of the failure but denied assistance in covering the cost of the repair. The failure mileage was unknown.

- Ypsilanti, MI, USA