The contact owns a 2020 Ford F-53. The contact stated that while driving 50 MPH, the rear tires blowout and caught on fire. The contact extinguished the fire. The contact stated that the bed of the vehicle was swaying back and forth while driving the vehicle. The contact stated that the slide-outs unexpectedly extend while driving the vehicle. The vehicle was taken to a service center, where it was determined that the slide-outs had failed and that rear tires needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure by telephone. The failure mileage was approximately 23,000.