GMC Sierra 2010 Owner's Manual page 547

9. Install the spare tire.
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.
10. Put the wheel nuts back on with the rounded end
of the nuts toward the wheel.
11. Tighten each wheel nut by hand. Then use the
wheel wrench to tighten the nuts until the wheel is
held against the hub.
12. Turn the wheel wrench counterclockwise to lower
the vehicle. Lower the jack completely.
8. Remove any rust or dirt
from the wheel bolts,
mounting surfaces, and
spare wheel.
WARNING:
If wheel studs are damaged, they can break. If all
the studs on a wheel broke, the wheel could come
off and cause a crash. If any stud is damaged
because of a loose-running wheel, it could be that
all of the studs are damaged. To be sure, replace
all studs on the wheel. If the stud holes in a wheel
have become larger, the wheel could collapse in
operation. Replace any wheel if its stud holes
have become larger or distorted in any way.
Inspect hubs and hub piloted wheels for damage.
Because of loose running wheels, piloting pad
damage may occur and require replacement of
the entire hub, for proper centering of the wheels.
When replacing studs, hubs, wheel nuts or
wheels, be sure to use GM original equipment
parts.
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