Hummer 2006 H2 - Manual (Page 168)

The rear window defogger will turn off about 10 minutes
after the button is pressed. If you need additional
warming time, press the button again.
If your vehicle is equipped with heated mirrors this
button will activate them.
Notice: Do not use a razor blade or sharp object to
clear the inside rear window. Do not adhere
anything to the defogger grid lines in the rear glass.
These actions may damage the rear defogger.
Repairs would not be covered by your warranty.
Outlet Adjustment
Your vehicle has air outlets that allow you to adjust the
direction and amount of airflow inside the vehicle. Push
the knob in the center of the outlet up, down, left or right
to move the outlet in the direction you would like. Turn the
knob in the center of the outlet so the louvers open or
close to increase or decrease airflow.
Operation Tips
• Keep the hood and front air inlets free of ice, snow,
or any other obstruction (such as leaves). The
heater and defroster will work far better, reducing
the chance of fogging the inside of your windows.
• Keep the air path under the front seats clear
of objects. This helps air to circulate throughout
your vehicle.
• Adding outside equipment to the front of your
vehicle, such as hood-air deflectors, etc., may affect
the performance of the heating and air conditioning
system. Check with your dealer before adding
equipment to the outside of your vehicle.
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