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GMC 2007 Sierra - Page 241

GMC 2007 Sierra
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Pressing one of these buttons when the system is
off will turn the system on. Pressing one of
these buttons when in automatic control will place
the fan under manual control. The fan setting
will remain displayed and the AUTO light will turn
off. The air delivery mode will remain under
automatic control.
yN z (Mode): Press the mode up and down
buttons to manually change the direction of
the airflow in your vehicle. Repeatedly press the
button until the desired mode appears on the
display. Pressing one of these buttons when the
system is off will change air delivery mode without
turning the system on. Pressing one of these
buttons when in automatic control will place the
mode under manual control.
The air delivery mode setting will be displayed and
the AUTO light will turn off. The fan will remain
under automatic control.
H (Vent): Air is directed to the instrument
panel outlets.
) (Bi-Level): Air is directed partly to the
instrument panel outlets and to the floor outlets. A
little air is directed towards the windshield and
side window outlets. Cooler air is directed to the
upper outlets and warmer air to the floor outlets.
6 (Floor): Air is directed to the floor outlets, with
some to the windshield, side window outlets,
and second row floor outlets. In this mode, the
system will automatically select outside air.
- (Defog): See “Defogging and Defrosting” later
in this section.
@ (Recirculation): Press this button to turn the
recirculation mode on. When the button is
pressed, an indicator light will come on.
This mode keeps outside air from entering the
vehicle. It can be used to reduce outside air and
prevent odors from entering the vehicle.
Recirculation may also help cool the air inside the
vehicle more quickly once the temperature inside
the vehicle is less than the outside temperature.
241

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