GMC Envoy 2003 Owner's Manual page 363

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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. Place the spare on the wheel mounting surface.
10. Tighten each nut by hand until the wheel is held
against the hub. If a nut can't be turned by hand,
use the wheel wrench and see your dealer as soon
as possible.
9. Put the nuts on by
hand. Make sure the
rounded end is
toward the wheel
11. Lower the vehicle by turning the jack handle
counterclockwise. Lower the jack completely.
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