Chevrolet 2008 Cobalt, Owner'S Manual

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CAUTION:
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 you
change a wheel, remove any rust or dirt from
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. See Changing a Flat Tire
on page 5-74.
10. Place the compact spare tire on the wheel-mounting
surface.
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CAUTION:
Never use oil or grease on studs or nuts.
Because the nuts might come loose. The
vehicle’s wheel could fall off, causing a crash.
11. Remove any rust or dirt
from the wheel bolts,
mounting surfaces,
and spare wheel.
Reinstall the wheel nuts with the rounded end
of the nuts toward the wheel. Tighten each nut by
hand until the wheel is held against the hub.
12. Lower the vehicle by turning the jack handle
counterclockwise. Lower the jack completely.
5-83