Hummer 2006 H2 Owner's Manual page 411

Before proceeding, be sure to set the wheel blocks at
the appropriate tires as previously shown. To use
the wheel blocks, do the following:
For jack A, locate the wheel blocks which are stored
behind the jack on the driver's side of the vehicle.
Jack B Wheel Blocks
For jack B, remove the
wheel blocks from the tool
bag. Then, lift the wheel
block as shown to
lock it into place.
Removing the Spare Tire (SUV)
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 2-14 for tire carrier operation.
2. Unscrew the wing nut on the back of the tire carrier.
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