I have a 07 Yukon Denali which I purchased new in June of 07. This Winter I 've had to take it back to the dealer 5 times for problems with my rear defroster. The problem began when the soldered connection at the window broke off on the drivers side. I took it back and they re-soldered the connector. A week or so later, it came off again. After another trip to the dealer, they re-soldered it again. Two weeks later it came off again. This time the dealer ordered a new rear window and sent the vehicle to a local glass shop to have it replaced. Within a few weeks it came off again. I took it back and they re-solderd the connector. This morning, I noticed the connector has come off on the passenger side. I can't figure out what 's causing this to happen. Each time I've had the vehicle in, I notice someone stretches the coiled connector wires as if to relieve tension. While I understand the logic, this really isn't the problem since they would only become trensioned if I were opening the window and not the entire tailgate. Since I only open the tailgate and never the window, this can't be the cause. I use the remote start frequently since it's been a cold Winter and the vehicle is left outside. The only thing I can imagine is that when running remotely, there is too much current going to the rear defroster and that combined with the cold outside temperatures is causing the connections to get too hot and become un-soldered. Has anyone else experienced this? I'm really getting tired of taking it back to the dealer.