I have had door lock related problems. Twice. The first time was the passenger side rear door. As soon as it got cold out last winter my alarm would go off on it's own when the car was cold. When starting the car and driving it, the DIC would say door ajar, and then once the interior warmed up the doors would lock and all would be fine. Found out the door sensor was bad and is built into the handle assembly. $378 later, new door handle. Second time was a couple weeks ago, and my driver door would not lock, the pin didn't even move to show it was locking or unlocking. Yet again, another handle assembly. Ridiculous to think I have almost $800 into 2 door handles. That alone has paid for a good chunk of the warranty I opted to get (thank god). Sort of looks like this is going to be another problem area for our cars.