Hi, i just recentley bought a 05 GMC sierra with quadrasteer. I did not know much about it prior to buying this truck. Its awesome so far but the first thing i wanted to do when driving this truck was see how much you could whip it around when its only in 2 wheel drive. When you start spinning donuts it kicks out of 4WS mode. It will stay in the normal two wheel steer until i shut the truck off and start it again. Is this some kind of normal safety feature or do i have a problem?

No proelem there...just good old Delphi technology. It is a program set up in the truck to default to 2ws.