2009 Chevrolet Suburban 2500 Owner's Manual - Page 490

4. Insert the open end of the extension (J) through the hole in the rear bumper (I) (hoist shaft access hole). 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 5-99 for more information. 6. Use the wheel wrench hook that allows you to pull the hoist cable towards you, to assist in reaching the spare tire. Be sure the hoist end (J) of the extension (D) connects to the hoist shaft (B). The ribbed square end of the extension is used to lower the spare tire. 5. Turn the wheel wrench (E) counterclockwise to lower the spare tire (H) to the ground. Continue to turn the wheel wrench until the spare tire can be pulled out from under the vehicle. 5-90