Air Bag Light Coming on and Off on 2003 Hyundai Elantra

Within the last two days my air bag light is coming on but will go off by itself after driving the car for twenty or more minutes. Yesterday the light came on once and then off, today it was on and stayed on. What does that mean?

Asked by for the 2003 Hyundai Elantra
The light indicates the suplimental restraint system has identified a failure and the air bag is disabled. You need to find someone that KNOWS this system AND has the FACTORY LEVEL scan tool to make diagnosis.