Hummer 2008 H2 Owner's Manual page 413

3. Remove the dust cover and attach the hose to
the outlet.
The accessory inflator hose also has a built-in air
pressure gage. As soon as you start to inflate
an object it will automatically read the current
pressure.
4. Press and release the switch to turn the accessory
inflator on. The indicator light will remain on while
the inflator is running.
When you are finished using the inflator, press and
release the switch to turn it off. Place the inflator kit tools
and the hose back in the pouch.
If your vehicle is equipped with the air suspension
system, load leveling will not function with the inflator
hose attached to the inflator outlet.
CAUTION:
{
Inflating something too much can make it
explode, and you or others could be injured.
Be sure to read the inflator instructions, and
inflate any object only to its recommended
pressure.
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