GMC 2011 Yukon XL Denali Owner's Manual page 418

10-80 Vehicle Care
3. Assemble the two jack handle
extensions (D) and wheel
wrench (E) as shown.
4. Insert the open end of the
extension (J) through the hoist
shaft access hole (I) in the
bumper.
5. Raise the tire part way upward.
Make sure the retainer is fully
seated across the underside of
the wheel and centered 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 (A), and then
try to turn (B) the tire. If the tire
moves, use the wheel wrench to
tighten the cable.
8. Reinstall the spare tire lock.
9. Reinstall the hoist shaft access
cover.
10. Reinstall the hitch cover.