The contact owns a 2015 Ford Edge. The contact stated that after opening the rear electronic liftgate door to retrieve items from the rear of the vehicle, the electronic liftgate door erroneously closed and struck the contact on the head, causing a minor contusion. No medical treatment was required. The contact stated that the failure had occurred on several occasions. The cause of the failure was not yet determined. The local dealer was notified of the failure. The manufacturer was not yet contacted. The failure mileage was 100,000.