GMC Terrain 2010 Owner's Manual page 347

12. Remove all of the wheel nuts.
13. Remove the flat tire.
WARNING
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 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 If a Tire Goes Flat
on page 9 67.
Vehicle Care
14. Remove any rust or dirt from
the wheel bolts, mounting
surfaces, and spare wheel.
15. Place the compact spare tire
on the wheel-mounting surface.
WARNING
Never use oil or grease on bolts
or nuts because the nuts might
come loose. The vehicle's wheel
could fall off, causing a crash.
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