GMC 2006 Sierra - Manual (Page 200)

1
(Defrost): This setting directs most air through
the windshield defroster outlets, side window defroster
outlets and some through the floor outlets.
Dual Climate Control System
With this system you can control the heating, cooling
and ventilation for your vehicle.
Fan Control
9
(Fan): Turn the left knob clockwise or
counterclockwise to increase or decrease the fan speed.
Turn the knob to the off position to turn off the fan. If the
knob is in off, outside air will still enter the vehicle and will
be directed based on the position of the mode knob. The
temperature can also be adjusted using the temperature
levers.
Turn the right knob clockwise or counterclockwise to
direct the airflow inside of your vehicle.
Mode Control
To change the current mode, select one of the following:
H
(Vent): This mode directs air to the instrument
panel outlets.
)
(Bi-Level): This mode directs half of the air to
the instrument panel outlets; then directs most of the
remaining air to the floor outlets. A little air is directed
toward the windshield and the side window outlets.
Cooler air is directed to the upper outlets and warmer
air to the floor outlets.
6
(Floor): This mode directs most of the air to the
floor outlets with a little air directed to the windshield
and the side window outlets.
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