2021 Ford Explorer brakes problems

On July 1, 2023, I had the vehicle parked on an incline with a trailer attached to the vehicle. The vehicle was in Park and the Parking Brake was set. As I attempted to unload the trailer, the vehicle started to move and rolled down the incline. I was on the trailer and was moving with the vehicle, I could have been injured but fortunately the vehicle rolled into a pile of topsoil before it could pick up too much speed.

The contact owns a 2021 Ford Explorer. The contact stated that while driving at approximately 35 MPH down a hill, the engine and powertrain were resistant when the brakes were applied. No warning lights illuminated. A mobile mechanic was sent by a local dealer to inspect the vehicle. The mechanic determined that the failure was due to the transfer case but was not related to NHTSA Campaign Number: 26V402000 (Power Train).