GMC Acadia 2013 Owner's Manual page 327

2. If the vehicle has a wheel cover,
loosen the plastic nut caps with
the wheel wrench. They will not
come off. Then, using the flat
end of the wheel wrench, pry
along the edge of the cover until
it comes off. Be careful; the
edges may be sharp. Do not try
to remove the cover with your
bare hands.
Store the wheel cover securely
in the rear of the vehicle until
you have the flat tire repaired or
replaced.
If the vehicle has aluminum
wheels, remove the wheel nut
caps using the wheel wrench.
3. Loosen the wheel nuts
not remove them
wrench. For wheels with a wheel
lock key, use the wheel lock key
between the lock nut and
wrench. The key is supplied in
the front passenger door pocket.
Notice: If this vehicle has wheel
locks and an impact wrench is
used to remove the wheel nuts,
the lock nut or wheel lock key
could be damaged. Do not use an
impact wrench to remove the
wheel nuts if this vehicle has
wheel locks.
4. To identify the appropriate
jacking location, find the triangle
or rectangular notch about
30.5 cm (12 in) from the front tire
or about 27 cm (10.5 in) from the
rear tire.
but do
using the
Vehicle Care 10-61