Hummer H2 2010 Owner's Manual page 476

Rear Flat Tire
Rear Flat Tire: Place the jack under the curved
rear axle pad. Make sure the jack head is
positioned so that the rear axle pad is resting
securely on the jack head.
WARNING:
Getting under a vehicle when it is jacked up is
dangerous. If the vehicle slips off the jack, you
could be badly injured or killed. Never get under a
vehicle when it is supported only by a jack.
6-96
Jack
WARNING:
Raising your vehicle with the jack improperly
positioned can damage the vehicle and even
make the vehicle fall. To help avoid personal
injury and vehicle damage, be sure to fit the jack
lift head into the proper location before raising the
vehicle.
8. Turn the wheel wrench clockwise to raise the
vehicle. Raise the vehicle far enough off the
ground so there is enough room for the spare tire
to clear the ground.
9. Remove all the wheel
nuts and take off the
flat tire.