Hummer 2008 H2 Owner's Manual page 421

3. Open the tool bag. The following tools needed to
remove the spare tire and flat tire are inside the
tool bag:
A. Jack Handle
B. Jack Handle
Extensions (2)
C. Wheel Wrench
D. Wheel Wrench
Extension
E. Wheel Blocks (2)
Before proceeding, be sure to set the wheel blocks at
the appropriate tire as previously shown. To use
the wheel blocks:
Remove the wheel blocks
from the tool bag. Then,
lift the wheel block as
shown to lock it into place.
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