We got the truck back last week and my wife drove it to NE Wisconsin with the kids. She's going back this morning. Its worked fine so far and we'll keep our fingers crossed. If/when this happens again, I think Hillybilly Hybrid is onto something and Im going to show what he said to my dealer. When the electrical goes on the fritz and i call Onstar, what Hillybilly said is pretty close to what Onstar says the codes are telling them.