The contact owns a 2012 Dodge Journey. The contact stated upon starting the vehicle, the driver’s side headrest deployed inadvertently and hit the contact’s head. The contact sustained pain from the neck down to the shoulder but did not receive medical assistance. The dealer was notified of the failure and informed the contact that the failure was related to an unknown extended warranty coverage that had expired. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 99,000.