The contact owns a 2013 Dodge Durango. The contact stated that while reversing into a parking space, the driver's side front seat headrest was deployed without impact. The contact sustained an injury to her head; however, no medical attention was received. No warning lights were illuminated. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was 146,000.