Lane Keep Steering Assist problems of the 2021 Ford F-150

The contact owns a 2021 Ford F-150. The contact stated while attempting to make a turn from a complete stop in an intersection, the accelerator pedal was depressed but the vehicle failed to respond and would not move. The contact stated that the start/stop feature was engaged at the time of the failure. The contact turned off and restarted the vehicle several times and the vehicle responded. There was no warning light illuminated. Additionally, the contact stated while driving in a construction zone with lane departure steering assist mode engaged, he turned the steering wheel to avoid the construction cone; however the vehicle veered to the opposite direction and was pulling towards the construction cone. The contact also stated while driving and passing a semi-truck, the vehicle jerked and was pulling to the right, towards the rear of the semi truck. There was no warning light illuminated. The contact stated while driving at an undisclosed speed, the vehicle pulled towards an embarquement. The contact deactivated lane assist mode. The contact stated while driving and depressing the brake pedal pedal to make a complete stop, the vehicle failed to respond. The contact stood on the brake but the vehicle hesitated to respond, causing a 10 feet stopping distance delay, which led the vehicle into a 55 mph traffic. The vehicle was taken to the dealer where the failure could not be duplicated. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the dealer. The failure mileage was approximately 9,000.