Stopped car, got out, put keys on seat while removing items. About 30 seconds later quick chime sounded
Keys were on seat, no lights on dash and about 30 seconds after getting out and removing items the quick chime started.
Cars & Trucks - Saturn - Vue - 2002 Saturn VUE
Answers & Comments
It was warning you that you left the keys in the car. "X" amount of time with the keys not in the ignition, but within detection range, without pressure on the seat (indicating your sitting there), will make it warn you that you're about to lock the keys in the car. (It's a _good_ thing).