Hummer 2007 H2 Owner's Manual page 434

See Engine Compartment Overview on
page 402 for more information on the location
of the remote terminals.
434
The remote negative ( )
terminal is located
on the engine accessory
drive bracket and is
marked GND (Ground).
CAUTION:
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Using a match near a battery can cause
battery gas to explode. People have been
hurt doing this, and some have been
blinded. Use a flashlight if you need
more light.
Be sure the battery has enough water.
You do not need to add water to the
battery installed in your new vehicle.
But if a battery has filler caps, be sure the
right amount of fluid is there. If it is low,
add water to take care of that first. If you
do not, explosive gas could be present.
Battery fluid contains acid that can burn
you. Do not get it on you. If you
accidentally get it in your eyes or on your
skin, flush the place with water and get
medical help immediately.