The contact owns a 2014 Ford F-150. The contact stated while driving at an undisclosed speed, the vehicle independently shifted gear. No warning light was illuminated. The vehicle was taken to a dealer where it was diagnosed that the wheel speed sensor needed to be reprogrammed. The vehicle was serviced under an unknown NHTSA Campaign but, the failure persisted. The vehicle was towed back to the dealer where it was diagnosed that the shift sensor needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was unknown.