GMC 2009 Sierra - Manual (Page 406)

14. 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.
15. 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 5-85.
Storing a Flat or Spare Tire
and Tools
{ CAUTION:
Storing a jack, a tire, or other equipment in the
passenger compartment of the vehicle could
cause injury. In a sudden stop or collision,
loose equipment could strike someone.
Store all these in the proper place.
Notice: Storing an aluminum wheel with a flat tire
under your vehicle for an extended period of time
or with the valve stem pointing up can damage
the wheel. Always stow the wheel with the valve
stem pointing down and have the wheel/tire
repaired as soon as possible.
Store the tire under the rear of the vehicle in the
spare tire carrier.
5-94