GMC Sierra 2014 Owner's Manual page 454

10-88 Vehicle Care
10. Hoist End of Extension Tool
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 (7) and
extensions (6) together, as
shown.
4. Insert the hoist end (10) through
the hole (9) in the rear bumper
and onto the hoist shaft.
Do not use the chiseled end of
the wheel wrench.
5. Raise the tire part way upward.
Make sure the retainer is seated
in the wheel opening.
6. Raise the tire fully against the
underside of the vehicle by
turning the wheel wrench
clockwise until you hear two
clicks or feel it skip twice. You
cannot overtighten the cable.
7. Make sure the tire is stored
securely. Push, pull, and then try
to turn the tire. If the tire moves,
use the wheel wrench to tighten
the cable.
8. Reinstall the spare tire lock,
if the vehicle has one.