The contact owns a 2018 Ford F-150. The contact stated that while driving approximately 45 MPH, the steering wheel seized as if the vehicle was in park(P) with the vehicle turned off. The contact stated that the vehicle was still running. The contact stated there was no warning light illuminated. The contact had the vehicle towed to an independent mechanic who advised the contact to have the vehicle towed to a local dealer for assistance. The vehicle was not diagnosed and was not repaired. The manufacturer was informed of the failure and referred the contact to the NHTSA Hotline. The failure mileage was approximately 90,000.