A older friend with a 2002 PT Cruiser has had her air bag light going on at times. Usually after she's been driving for 20 minutes or so. Sometimes just for a moment, and other times it has stayed on. The dealer reset it once, but it went on again 20 minutes later. Is this serious? What should she do? If you email me, please let me know whether or not you are posting the same letter. If necessary, change domain to erols.com. Directions are given as if you know nothing. There's a big range here but I don't know who knows what.