2008 GMC Acadia Owner's Manual - Page 399

5. Raise the tire fully against the underside of the vehicle. Continue turning the lug wrench until you feel more than two clicks. This indicates that the compact spare tire is secure and the cable is tight. The spare tire hoist cannot be overtightened. Storing the Flat Tire Notice: Storing the full-size flat tire in the underbody hoist system can expose it to heat from the exhaust system. This can damage the tire and underbody hoist system. Do not store the full-size flat tire in the underbody hoist system. 1. Remove the cable package from the jack storage area. 2. Remove the small center cap by tapping the back of the cap with the extension of the shaft, if the vehicle has aluminum wheels. 3. Put the flat tire in the rear storage area with the valve stem pointing toward the rear of the vehicle. 6. Make sure the tire is stored securely. Push, pull (A), and then try to turn (B) the tire. If the tire moves, use the lug wrench to tighten the cable. 5-85