Buick 2007 Terraza Owner's Manual page 478

5. 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.
6. Remove all the wheel nuts and take off the
flat tire.
478
CAUTION:
{
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 needed, to
get all the rust or dirt off.