2010 GMC Savana 2500 Cargo Owner's Manual - Page 346

3. Turn the wheel wrench counterclockwise to lower the spare tire to the ground. Continue to turn the wheel wrench until the spare tire can be pulled out from under the vehicle. If the spare tire does not lower to the ground, the secondary latch is engaged causing the tire not to lower. See Secondary Latch System on page 6-92. 4. When the tire has been lowered, pull the tire toward you so you can reach the tire retainer and pull it up through the wheel opening. If you have a vehicle which was completed from a cab and chassis, refer to the information from body supplier/installer. The spare tire is a full-size tire, like the other tires on the vehicle. 5. Put the spare tire near the flat tire. 6-84