GMC Sierra 2000 Owner's Manual page 260

2. With the UP marking on the ratchet facing you,
rotate the ratchet clockwise. That will lift the jack
head a little.
4. Then take off the hub cap.
5. If the wheel also has a trim ring, use the wheel
wrench to pry along the edge and remove it.
6. If the wheel has a smooth center piece, place the
wheel wrench in the slot on the wheel and gently
pry out.
3. If your vehicle has
wheel nut caps, use the
wheel wrench and
ratchet to remove them.
Turn the wheel wrench
counterclockwise, with
DOWN facing you, to
remove the wheel
nut caps.
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