GMC Yukon Denalid Owner's Manual page 521

CAUTION:
{
Someone standing too close during the
procedure could be injured by the jack.
If the spare tire does not slide off the jack
completely, make sure no one is behind
you or on either side of you as you pull
the jack out from under the spare.
13. Disconnect the jack handle from the jack and
carefully remove the jack with the other hand.
14. Use one hand to push against the spare while
firmly pulling the jack out from under the
spare tire with the other hand. If the spare tire
is hanging from the cable, insert the hoist
end of the extension, and wheel wrench into
the hoist shaft hole in the bumper and
turn the wheel wrench counterclockwise to
lower the spare tire the rest of the way.
16. Turn the wheel wrench in the hoist shaft hole
in the bumper clockwise to raise the cable
back up if the cable is hanging under
the vehicle.
Have the hoist assembly inspected as soon as
you can. You will not be able to store a spare or
flat tire using the hoist assembly until it has
been replaced.
To continue changing the flat tire, see Removing
the Flat Tire and Installing the Spare Tire on
page 512.
15. Tilt the tire retainer
at the end of the
cable and pull
it through the wheel
opening. Pull the
tire out from
under the vehicle.
521