GMC Terrain 2011 Owner's Manual page 380

10-76 Vehicle Care
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 10 70.
I n f o r ma t i o n P r o v i d e d b y :
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.