Help, my folks are on vacation in there '03 DTS and the car won't start. The problem was intermittent at first. Apparently when you put the key in the ignition nothing happened, none of the memory functions or gauges lit up or moved and the column stays locked up. The key will NOT turn at all. A couple days ago if you just tried it a few times it would eventually turn and start up normally. But tonight the lock cylinder will not budge, I'm not familiar with the newer pass key systems. Is it possible that the car isn't recognizing the key code? My father used the 800 number to call OnStar, but they were of little help, apparently they're sending a tow truck out in the morning if it still won't start. Any thoughts?