Pontiac 2005 Montana Owner's Manual page 194

To direct the airflow to the rear seating area, use the
right knob located on the main climate control panel.
•
Select vent or bi-level mode to direct air to the
rear of the vehicle through the overhead outlets.
•
Select floor, defog, or defrost mode to direct air to
the rear of the vehicle through the floor outlets.
Generally the upper outlets are used for air conditioning
and the floor outlets are used for heating.
9
(Fan): Turn the fan knob on either rear fan control
to numeral 1, 2, or 3 to increase or decrease airflow
to the rear seating area. Turn the fan knob on either rear
fan control to 0 or OFF to turn off the fan.
Temperature Control: If the driver is adjusting the
temperature, increase or decrease the temperature for
the entire vehicle using the temperature controls
located on the main climate control panel. The
air-conditioning system must be on to direct cooled
air to the rear of the vehicle. If it is not on, the
temperature in the rear of the vehicle will remain at
cabin temperature.
3-30
If a rear seat passenger is adjusting the temperature,
turn the right knob, located overhead on the control
panel behind the driver's seat, clockwise or
counterclockwise to raise or lower the temperature in
the rear seating area only.
Rear Air Outlets
The outlet behind the left rear seat is the cold air return
outlet. Be sure to keep it free from obstructions.
Also, keep the area around the base of the center
instrument panel console, between and under the front
seats, free of objects that could also obstruct airflow
to the rear seating area.
For more information on how to use the main climate
control system, see Climate Control System on
page 3-26 . For information on ventilation, see Outlet
Adjustment on page 3-28 .