2003 GMC Yukon Owner's Manual - Page 433

1. Remove the center cap by placing the chisel end of the wheel wrench in the slot on the wheel and gently prying the cap out. 2. Use the wheel wrench to loosen all the wheel nuts. Turn the wheel wrench counterclockwise to loosen the wheel nuts. Don't remove the wheel nuts yet. Notice: If your vehicle has QUADRASTEER™ and you use a jack to raise the vehicle without positioning it correctly, you could damage the QUADRASTEER™ system. When raising your vehicle on a jack, avoid contact with tie rods and tie rod boots. 5-75