Oldsmobile 2003 Silhouette Owner's Manual page 385

3. Attach the folding
wrench to the jack,
and turn the wrench
clockwise to raise
the jack head a
few inches.
4. Raise the vehicle by turning the folding wrench
clockwise in the jack. Raise the vehicle far enough
off the ground so there is enough room for the
compact spare tire to fit under the wheel well.
5. Remove all the wheel nuts and take off the flat tire.
6. Remove any rust or dirt
from the wheel bolts,
mounting surfaces
and spare wheel.
Rust or dirt on the wheel, or on the parts to
which
it
is fastened, can make the wheel nuts
become loose after a time. The wheel could
come off and cause an accident. When you
change a wheel, remove any rust or dirt from
the places where the wheel attaches to the
vehicle. In an emergency, you can use a cloth
or a paper towel to do this; but be sure to use
a scraper or wire brush later, if you need to,
to get all the rust or dirt off.
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