300CwannaB, I have had this problem ongoing for about 7 months and nobody can figure out why the light comes on. It only comes on in the morning for me while the car is cold. After the cabin warms up AND I shut the car off and restart it, its gone. I brought it to the dealer while the light was on and they ran codes. My case is currently with Chrysler Engineers. Hopefully its not the same problem as mine. I have had the sensor re-calibrated 5 times. They have replaced the occupent restraint sensor twice, and the air bag module once. Yet, just about every morning the light comes on. I hope you have better luck than me. I love this car, but between oil changes and "minor" problems, I have been back to my dealership close to 20 times in less than a year of ownership. I bought a new car to avoid trips to the dealership and it seems like I'm visiting more than I was with my old caddy. I'm not sure how much more I'm willing to put up with this. I may take the hit and look at a V8 STS. My old Caddy dealership service department was top notch. I never had to bring the car back for the same issue. Sorry guys, just venting. Mine will also come on while driving sometimes, but again its only when the cabin temperature is cold. So WTFK...