The contact owns a 2014 Ford Focus. The contact stated that while driving approximately 5 MPH, the driver's side air bag erroneously deployed. The contact stated that no collision had occurred to cause the air bag to deploy. During the failure, the driver sustained a neck injury that required medical treatment. A Police report was filed at the scene. The cause of the failure was not yet determined. The local dealer and manufacturer were not notified of the failure. The VIN was not available. The failure mileage was 84,000.