2005 Chevrolet Impala Owner's Manual - Page 140
2005 Chevrolet Impala Manual
Page 140 highlights
6 (Floor): This mode directs most of the air to the floor outlets, with some of the air directed to the windshield and side window outlets. In this mode, the system will automatically select Outside Air. The right knob can also be used to select defog or defrost mode. For more information, see "Defogging and Defrosting" later in this section. By positioning the right knob between two modes, a combination of those two modes is selected. It should be noted, that the air conditioning compressor will be engaged unless the outside temperature is 40°F (4°C) or below. Recirculation cannot be selected when in Floor Mode. Turn the left knob clockwise or counterclockwise to increase or decrease the fan speed. If the airflow seems low when the fan is at the highest setting, the passenger compartment air filter, if equipped, may need to be replaced. For more information, see Passenger Compartment Air Filter on page 3-23 and Scheduled Maintenance on page 6-4. Press this button to turn the outside air mode on. When this mode is on, outside air will circulate throughout your vehicle. When the button is pressed, an indicator light in the button will come on to let you know that it is activated. The outside air mode can be used with all modes, but it cannot be used with the recirculation mode. ? (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 prevent outside air and odors from entering your vehicle. Recirculation may also help heat or cool the air inside your vehicle more quickly once the temperature inside the vehicle is equal to or better than the outside temperature. The recirculation mode cannot be used with outside air, floor, defrost, or defogging modes. Temperature Control: Rotate the thumbwheels up or down to increase or decrease the temperature on the driver's side or the passenger side of the vehicle for the dual zone system. Turn the center knob clockwise or counterclockwise to increase or decrease the temperature for the single zone system. 9 (Fan): # (Air Conditioning): : (Outside Air): Press this button to turn the air conditioning system on or off. When A/C is pressed, an indicator light will come on to let you know that the air conditioning has been activated. 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. 3-20