Mine is randomly doing this now. It was just the airbag light on and now the seat belt light is on with it. I used INPA and DIS to read and clear all codes. This did nothing. The only work I've done on my vehicle the past two weeks is replace the rear passenger door carrier. There were no lights on in the dash for a week or two after I replaced it and this just started. Anyways, not sure what to do!?