Chevrolet 2009 HHR Owner's Manual page 360

CAUTION:
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Rust or dirt on a wheel, or on the parts to which it is
fastened, can make wheel nuts become loose after
time. The wheel could come off and cause an
accident. When changing a wheel, remove any rust
5-82
5. Remove all the wheel
nuts and take off the
flat tire.
CAUTION: (Continued)
CAUTION: (Continued)
or dirt from places where the wheel attaches to
the vehicle. In an emergency, 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. See Changing a Flat Tire on
page 5-76.
7. Place the compact spare tire on the wheel-mounting
surface.
6. Remove any rust or dirt
from the wheel bolts,
mounting surfaces
and spare wheel.