Hummer 2006 H3 - Manual (Page 350)

6. Remove all the wheel
nuts and take off the
flat tire.
{ 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.
7. Remove any rust or dirt
from the wheel bolts,
mounting surfaces
and spare wheel.
{ CAUTION:
Never use oil or grease on studs or nuts.
If you do, the nuts might come loose. Your
wheel could fall off, causing a serious accident.
8. Put the spare tire on the mounting surface.
9. Put the wheel nuts back on with the rounded end of
the nuts toward the wheel after mounting the spare.
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