GMC 2004 Canyon Owner's Manual page 346

Rear Position
4. Make sure the jack head is positioned so that the
rear axle is resting securely between the grooves
that are on the jack head.
5. Turn the wheel wrench clockwise to raise the
vehicle. Raise the vehicle far enough off the ground
so there is enough room for the spare tire to fit
under the wheel well.
5-82
6. Remove all the wheel
nuts and take off the
flat tire.
7. Remove any rust or dirt
from the wheel bolts,
mounting surfaces
and spare wheel.