GMC 2008 Canyon - Manual (Page 356)

4. Insert the hoist end of the extension through the hole
in the rear bumper and into the funnel-shaped guide.
5. Turn the wheel wrench clockwise to raise the
tire part way up. Make sure the retainer is seated
in the wheel opening and the valve stem is
pointed down.
Continue raising the tire, watch to make sure it does
not get caught on anything on the underbody. If the
tire does get caught, loosen up two or three turns
and push and pull the tire and then retighten.
Repeat this procedure as many times as needed
to ensure proper stowage.
6. When the tire is properly seated to the underbody,
continue turning the wheel wrench clockwise
until you feel the override which is 2 skips.
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,
check to make sure the tire valve stem is pointing
down, then use the wheel wrench to loosen
and then tighten the cable.
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