GMC 2011 Sierra Denali Owner's Manual page 417

1. Open the spare tire hoist access
hole cover on the bumper and
use the ignition key to remove
the spare tire lock.
To remove the spare tire lock,
insert the ignition key, turn it
clockwise, and pull the lock
straight out.
2. Assemble the wheel wrench (H)
and the two jack handle
extensions (I) as shown.
3. Insert the hoist end (open
end) (F) of the extension through
the hole (G) in the rear bumper.
Be sure the hoist end of the
extension connects to the hoist
shaft (E). The ribbed square end
of the extension is used to lower
the spare tire.
Vehicle Care
4. Turn the wheel wrench (H)
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.
5. Use the wheel wrench, which
has a hook that lets you pull the
hoist cable toward you, to assist
in reaching the spare tire.
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