GMC 2012 Canyon Owner's Manual page 323

2. Tilt the retainer downward and
through the center wheel
opening. Make sure the retainer
is fully seated across the
underside of the wheel.
3. Assemble the wheel wrench, the
jack handle extensions, and the
jack handle, as shown.
4. Insert the chiseled end of the
jack handle at a slight angle
through the hole in the rear
bumper and into the
funnel-shaped guide.