GMC 2012 GMC Yukon/Yukon XL, Owner'S Manual, Page: 441 / 518

Black plate (85,1)
GMC Yukon/Yukon XL Owner Manual - 2012
Vehicle Care 10-85
A. Jack
B. Wheel Blocks
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.
9. Position the center lift point of
the jack under the center of the
spare tire.
10. Turn the wrench clockwise to
raise the jack until it lifts the
end fitting.
11. Continue raising the jack until
the spare tire stops moving
upward and is held firmly in
place. The secondary latch has
released and the spare tire is
balancing on the jack.