The contact owns a 2016 Kia Soul. The contact stated while her husband was driving 45 MPH, the accelerator pedal was depressed, and the vehicle failed to respond. The check engine warning light was illuminated. The vehicle failed to accelerate until the vehicle stopped. The vehicle was towed to the dealer where it was diagnosed with internal failure in an exhaust manifold. The vehicle was repaired; however, the failure persisted. The contact stated that after the vehicle was repaired, approximately every 2,000 miles the oil warning light would illuminate. The contact stated that recently the check engine warning light illuminated. The dealer was made aware of the failure. The manufacturer was made aware of the failure. The failure mileage was approximately 86,000.