Cadillac 2008 SRX Owner's Manual page 367

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 5-76.
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. Install the spare tire.
12. Put the wheel nuts back on with the rounded end
of the nuts toward the wheel.
13. Tighten each nut by hand until the wheel is held
against the hub.
14. Lower the vehicle by attaching the wheel wrench to
the jack and turning the wrench counterclockwise.
Lower the jack completely.
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