NHTSA complaint #11712490

Owner complaint summary

My 2023 Ford Explorer ST has rolled while parked, turned off, and in Park, with the electronic parking brake engaged. This has occurred multiple times on my residential driveway, which has an approximate 20-degree slope, during light snow conditions. On one occasion, the vehicle rolled backward down the driveway and into the street after being parked and shut off. On another occasion, it rolled forward while parked in the same location. In both cases, the vehicle stopped on its own without driver input. The dashboard indicated the vehicle was in Park, and the electronic parking brake had automatically engaged. This behavior is inconsistent and occurred in both directions, which raises concern that the parking pawl and/or electronic parking brake is not reliably holding the vehicle. Snow may reduce traction, but a properly functioning parking system should prevent a parked vehicle from rolling, especially into the street. After the December 14, 2025 incident, the dealer was contacted and they replaced the parking pawl. The subsequent incidents occurred on January 14, 2026 while both rear facing and forward facing. This appears to be a vehicle rollaway safety defect and presents a serious risk of collision, injury, or property damage. The vehicle has not been modified, and this occurred under normal parking conditions. I am reporting this issue due to the safety risk and concern that the parking system may not be functioning as designed. I do have a video is of the December 14, 2025 incident when the vehicle was unoccupied, parked, turned off, and in Park, with the electronic parking brake engaged.