2013 kia optima hybrid airbag light constantly on indicated problem with the airbag system. diagnosis is airbag control unit failure. we had the dealer replace the airbag control unit. vehicle has never been in a crash. i noticed there are recalls for 2011 - 2012 optima hybrid and 2011 - 2013 optima vehicles, among many others by hyundai and kia. 2013 optima hybrid may also be affected.