The contact owns a 2021 Ford Expedition. The contact stated that as his wife had attempted to park the vehicle, she placed the gear shifter into park(P) and let her foot off the brake pedal. Once she released her foot off the brake, the vehicle abruptly accelerated forward and hit a storage shed. The contact depressed the brake pedal multiple times during the failure but the brakes failed to engage. No warning lights appeared on the instrument panel during the failure. The air bags did not deploy upon impact. The police were not called and no medical assistance was needed. The storage shed was destroyed as a result of the impact. The contact called the dealer and made an appointment for a diagnostic. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was unknown.