Chevrolet 2011 Express 1500 Cargo Owner's Manual page 355

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.
1. Put the tire on the ground at the
rear of the vehicle with the valve
stem pointed down.
2. Pull the retaining bar through the
center of the wheel, making sure
it is properly attached.
3. Pull the wheel toward the rear of
the vehicle, keeping the cable
tight.
4. Put the chisel end of the hoist
extension on an angle through
the hole in the rear door frame,
above the bumper.
5. Raise the tire fully against the
underside of the vehicle.
Continue turning the wheel
wrench until the tire is secure
and the cable is tight. The
spare tire hoist cannot be
overtightened.
6. Make sure the tire is stored
securely. Push, pull (A), and then
try to turn (B) the tire. If the tire
moves, use the wheel wrench to
tighten the cable.
You will hear two clicks when the
tire is up all the way.
7. Return the jacking equipment to
the proper location. Secure the
items and replace the jack cover.