1998 1500 Quad-Cab

Magnum5.9 Clean runs GREAT,,,,,,,,,,,,, Can't get "Air BAG" light and ALARM to STOP coming on every 3 or 4 minutes,,,,, DRIVING ME NUTS !!!!!!!!!!!!!!! Haven't got a clue how to fix it,,,, I'm not a tech ? Would trade for Chevy/GMC of equal value ?