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GMC 2005 Yukon - Rear Window Defogger

GMC 2005 Yukon
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On cool, but sunny days while using manual operation
of the automatic system, use bi-level to deliver warm
air to the floor and cooler air to the instrument
panel outlets. To warm or cool the air delivered, turn the
temperature knob to the desired setting.
In AUTO mode the system will cool and dehumidify the
air inside the vehicle. Also while in AUTO mode, the
system will maximize its performance by using
recirculation as necessary.
Defogging and Defrosting
You can use either defog or front defrost to clear fog
or frost from your windshield. Use the defog mode
to clear the windows of fog or moisture. Use the front
defrost button to defrost the front windshield.
-(Defog): Use this setting to clear the windows of
fog or moisture. Press the mode button to select
this setting. This setting will deliver air to the floor
and windshield outlets.
0 (Defrost): Press the defrost button to defrost the
windshield. The system will automatically control the fan
speed if you select defrost from AUTO mode. If the
outside temperature is 40°F (4°C) or warmer, your air
conditioning compressor will automatically run to
help dehumidify the air and dry the windshield.
Rear Window Defogger
Your vehicle has this feature. The lines you see
on the rear window warm the glass. The rear window
defogger uses a warming grid to remove fog from
the rear window.
<(Rear): Press this button to turn the rear window
defogger on or off. An indicator light in the button
will come on to let you know that the rear window
defogger is activated.
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.
Your vehicle is equipped with heated mirrors. This
button will activate them.
Notice: Using a razor blade or sharp object to
clear the inside rear window may damage the rear
window defogger. Repairs would not be covered
by your warranty. Do not clear the inside of the rear
window with sharp objects.
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