Key got stuck in ignition and would not turn on. Called AAA and the guy slammed the key with the handle of a screw driver and it came out. He said this is a very common problem and to take it to the dealer. Estimated $400 to fix. I just got some silicone and put it on the key. It has jammed occassionally, but I just keep a screw driver in the vehicle and tap it when it happens and it works for a while. Need to break down and get it fixed. Annoying in such an expensive vehicle!!