GMC 2013 Sierra Owner's Manual page 450

Store the tire under the rear of the
vehicle in the spare tire carrier.
A. Flat or Spare Tire (Valve Stem
Pointed Down)
B. Hoist Assembly
C. Hoist Cable
D. Tire/Wheel Retainer
E. Hoist Shaft
F. Hoist End of Extension Tool
G. Hoist Shaft Access Hole
H. Wheel Wrench
I. Jack Handle Extensions
J. Spare Tire Lock (If Equipped)
1. Put the tire on the ground at the
rear of the vehicle with the valve
stem pointed down, and to
the rear.
2. Pull the cable and spring
through the center of the wheel.
Tilt the wheel retainer plate
down and through the center
wheel.
Make sure the retainer is fully
seated across the underside of
the wheel.
3. Attach the wheel wrench (H) and
extensions (I) together, as
shown.
4. Insert the hoist end (F) through
the hole (G) in the rear bumper
and onto the hoist shaft.
Do not use the chiseled end of
the wheel wrench.