After driving for an hour, parked for another hour, driving home the light came on. i have heard about seatbelt latch to the sensor in the passenger seat are common problems. BTW today was one of the hottest days the car has been out.

Yup, mine came on Thu. Stopped by the dealership on Fri and they said I needed to make an appointment and leave it with them for the day. Probably call on Min to see what they have open next week.

My damn light's been on for three weeks now. Really should get it looked at.

is it true that if the light is on the airbags wont deploy in an accident?

Not necessarily. It could just be one of the monitoring sensors is bad. I think they have them in the seat belt tensionors and under the passenger seat. If it's just that, they would still deploy. If it's one of the crash sensors, there is a possibility that the airbag associated with that sensor would have a problem.