Hummer 2005 H2 Owner's Manual page 374

Make sure the spare tire is stored securely. Push, pull,
and then try to rotate or turn the tire. If it moves,
use the ratchet/wheel wrench to tighten the cable. See
Changing a Flat Tire on page 5-70.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The first rotation
is the most important. See Scheduled Maintenance
on page 6-4.
When rotating your tires, always use the correct rotation
pattern shown here.
Do not include the spare tire in your tire rotation.
5-62
After the tires have been rotated, adjust the front and
rear inflation pressures as shown on the tire and loading
information label. See Loading Your Vehicle on
page 4-58 and Inflation - Tire Pressure on page 5-60,
for more information. Make certain that all wheel
nuts are properly tightened. See "Wheel Nut Torque"
under Capacities and Specifications on page 5-112.
CAUTION:
{
Rust or dirt on a wheel, or on the parts to
which it is fastened, can make wheel nuts
become loose after a 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 you need to, to
get all the rust or dirt off. See Changing a Flat
Tire on page 5-70.