2007 GMC Acadia Owner's Manual - Page 463

Removing the Flat Tire and Installing the Spare Tire 1. It is recommended that you do a safety check before preceding. See Changing a Flat Tire on page 458 for more information. 2. If the vehicle has a wheel cover, loosen the plastic nut caps with the wheel wrench. They will not come off. Then, using the flat end of the wheel wrench, pry along the edge of the cover until it comes off. Be careful; the edges may be sharp. Do not try to remove the cover with your bare hands. Store the wheel cover securely in the rear of the vehicle until you have the flat tire repaired or replaced. If your vehicle has aluminum wheels, remove the wheel nut caps using the wheel wrench. 3. Loosen the wheel nuts - but do not remove them - using the lug wrench. For wheels with a wheel lock key, use the wheel lock key between the lock nut and lug wrench. The key is supplied in the front passenger door pocket. Notice: If your vehicle has wheel locks and an impact wrench is used to remove the wheel nuts, the lock nut or wheel lock key could be damaged. Do not use an impact wrench to remove the wheel nuts if your vehicle has wheel locks. 463