The contact owns a 2016 Hyundai Elantra. The contact stated that while her daughter attempted to adjust the front driver's side seat while the vehicle was turned off, the front Driver-side air bag had independently deployed. No warning light illuminated. In addition, the contact's daughter's left arm was injured on impact with the air bag. Medical attention was sought, and further medical diagnosis will be scheduled. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 160,000.