Chevrolet 2006 Avalanche Owner's Manual page 437

Follow these instructions to lower the spare tire:
1. Your vehicle may be equipped with a spare tire
lock (J). Open the spare tire lock cover on the
bumper and use the ignition key to remove the lock.
2. Assemble the wheel wrench (H) and the two jack
handle extensions (I) as shown.
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.
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.
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 5-95 for more information.
3. Insert the hoist end
(open end) (F) of the
extension through
the hole (G) in the rear
bumper.
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