Hummer H2 2009 Owner's Manual page 424

Any time you notice unusual wear, rotate your
tires as soon as possible and check wheel
alignment. Also check for damaged tires or wheels.
See When It Is Time for New Tires on page 5-71
and Wheel Replacement on page 5-76.
Four-Tire Rotation Pattern
5-70
Five-Tire Rotation Pattern
When rotating your vehicle's tires, always use one
of the correct rotation pattern shown here. The
five-tire rotation pattern includes a full-size spare
tire and wheel assembly that matches the regular
road tires and wheels in size, type, and brand.
After the tires have been rotated, adjust the front
and rear inflation pressures as shown on the Tire
and Loading Information label. See Inflation - Tire
Pressure on page 5-63 and Loading the Vehicle on
page 4-44.