The contact’s sister owns a 2012 Jeep Liberty. The contact stated that upon opening the door of the vehicle, the contact’s sister became aware that the driver’s side headrest had been deployed. The dealer was notified of the failure and informed the contact that the vehicle was previously repaired under NHTSA Campaign Number: 17V640000 (Seats, Air Bags). The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the dealer for diagnostic testing. A case was opened. The failure mileage was approximately 86,000.