I've had the same problem with the tire pressure sensor. Had to bring it to the dealer 4 times. They tell me that temperature changes are causing the light to go on. Here's the rub, the dealer is trying to charge $22.50 each time they reset the sensor. Not only do I loose 4 hours from work, now they are charging for something I have no control over? Like I said in prior posts, these crazy problems make the owning of my Xfire a pain in the as*. I love the car, hate the Chrysler service and mentality.