My air bag light on

Ok... have you scanned for trouble codes? You see, the airbag light comes on because the system has found a fault/problem and has set a code and turns on the AirBag light. So, take it in to a Hyundai Service Center/dealership and have them tell you what the trouble code is... they will tell you what needs to be done to fix it (parts, labor, tax, time-frame, etc). This way you'll find out EXACTLY what the problem is and what's required to fix it.