GMC 2007 Yukon XL Owner's Manual page 520

4. Repeat this procedure at least two times.
If the spare tire lowers to the ground,
continue with Step 5 of Removing the Spare
Tire and Tools on page 509.
5. If the spare tire does not lower, turn the wheel
wrench counterclockwise until approximately
6 inches (15 cm) of cable is exposed.
6. Stand the wheel blocks on their shortest ends,
with the backs facing each other.
520
7. Place the bottom
edge of the jack (A)
on the wheel
blocks (B),
separating them so
that the jack is
balanced securely.
8. Attach the jack handle, extension, and wheel
wrench to the jack and place it (with the
wheel blocks) under the vehicle toward the
front of the rear bumper.