I was driving my Hyundai i30 the other evening, it was snowing moderately, and a warning light plus triangle lit up. When I restarted a bit later it wasn't on at first but soon came on again. Then if I remember right it went out while still driving. The icon looks like a big weight being dropped on the bonnet! The nearest thing I can find in the manual is an air bag problem. Not concerned, but if anybody has a comment?