The contact owns a 2019 Hyundai Tucson. The contact stated while driving 45 MPH, the accelerator pedal was depressed; however, the vehicle failed to respond. The check engine light warning illuminated, and another unknown warning light flashed. The contact was approaching a traffic light and then while attempting to accelerate, the vehicle failed to respond. The contact pulled over to the side of the road, parked the vehicle, and turned off the vehicle however, the vehicle failed to restart. Several independent mechanics were contacted, and the contact was made aware of a possible recall related to the failure. The contact called the manufacturer and was referred to the dealer for assistance. The vehicle was towed to the dealer to be diagnosed, and the contact was informed that the engine was knocking. The vehicle was not repaired because the manufacturer was waiting on the maintenance records for the vehicle. The manufacturer was made aware of the failure. The failure mileage was approximately 92,000.