Hummer 2007 H2 Owner's Manual page 476

Release the jack by inserting the wheel wrench (A)
into the hole (B) and turn counterclockwise.
Before proceeding, be sure to set the wheel blocks
at the appropriate tires as previously shown.
476
Remove the wheel
blocks from the tool
bag. Then lift the wheel
block as shown to
lock it into place.
Removing the Spare Tire (SUT)
The spare tire is attached to the tire carrier.
To remove the spare tire, do the following:
1. Open the tire carrier. See Tailgate/Spare Tire
Carrier on page 108 for tire carrier operation.
2. Unscrew the wing nut on the back of the
tire carrier.