GMC 2006 Savana Owner's Manual page 136

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 about half of the air
to the instrument panel outlets, then directs most of
the remaining air to the floor outlets. Some air may be
directed toward the windshield.
6
(Floor): This mode directs most of the air to the
floor outlets with some air directed to the outboard
outlets (for the side windows) and some air directed to
the windshield.
The right knob can also be used to select the defrost
and defog modes. Information on defogging and
defrosting can be found later in this section.
9
(Fan): Turn the left knob clockwise or
counterclockwise to increase or decrease the fan speed.
Temperature Control: Turn the center knob clockwise
or counterclockwise to increase or decrease the
temperature inside your vehicle.
3-18
If your vehicle has air conditioning, your heating/air
conditioning controls will look like this:
On hot days, open the windows to let hot inside air
escape; then close them. This helps to reduce the time
it takes for your vehicle to cool down. It also helps
the system to operate more efficiently.
A/C (Air Conditioning): This setting will begin to cool
and dehumidify the air inside of your vehicle.
MAX A/C (Maximum Air Conditioning): Turn the right
knob to MAX A/C for maximum cooling. This setting
cools the air the fastest, by recirculating the inside air.