Maybe this is just too simple of a solution for this whole thing but I know that it will clear up probably half of the peoples concerns with the airbag thing. After about a week of owning my 3 I had the airbag light come on and off. But here is the thing it was the light that is on the center console under the radio and stuff. That is the light for the passenger's bag and they were having an issue with the passenger side sensor. It was supposed to be set so that if anything from 10 - 65 pounds (estimate) was sitting in the seat the airbag would automattically cut out, causing the light to come on. This was to protect any children and car seats from getting bashed by the airbag. My sensor was too sensitive and it would come on and off if I would only put down a couple of books, my dealer reajusted the sensor and it works fine now, no extra parts at all. It will now only go off if I put my bookbag on the passenger's seat which proabably weighs 50 pounds. If you are getting a different light like on your instrument pannel by your gages, then this won't help you, but for those others its not to worry.