2004 Chevrolet Monte Carlo Owner's Manual - Page 136

Selecting the Fan Speed 9 (Fan): Turn the left knob clockwise or counterclockwise to increase or decrease the fan speed. Turn the knob to OFF to turn off the fan. The fan must be turned on for the air conditioning compressor to operate. 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 3-27 and Scheduled Maintenance on page 6-4. ? (Recirculation): Selecting Outside Air or Recirculation The outside air mode is used to bring outside air into your vehicle; also use this mode to remove excess moisture from the inside of the windows. The recirculation mode is used to recirculate the air inside of your vehicle; also use this mode to help prevent outside odors and/or dust from entering your vehicle or to help heat or cool the air inside of your vehicle quickly. Press this button to turn the recirculation mode on. When this mode is on, inside air and a small percentage of outside air will recirculate throughout your vehicle. This selection will reduce the entry of outside air and odors from entering your vehicle, it may also help heat or cool your vehicle more quickly. When this button is pressed, an indicator light in the button will also come on to let you know that it is activated. During daylight hours, you may have to adjust the instrument panel brightness control to the highest setting in order to see the indicator light. See Interior Lamps on page 3-16 for more information. The recirculation mode can be used with vent and bi-level modes, but it cannot be used with floor, defog, defrost or outside air modes. This system will default back to the outside air setting, so you will have to re-select this setting every time that you start the vehicle. If the weather is cold and damp, the system may cause the windows to fog while using the recirculation mode. If the windows do start to fog, do the following: 1. Select the defog or defrost mode. 2. Select the temperature. 3. Select the highest fan speed. 4. Operate the system in the outside air mode, 4to help prevent a recurrence. : (Outside Air): Press this button to turn the outside air mode on. When this button is pressed, an indicator light in the button will come on to let you know that it is activated. During daylight hours, you may have to adjust the instrument panel brightness control to the highest setting in order to see the indicator light. See Interior Lamps on page 3-16 for more information. When this mode is on, outside air will circulate throughout your vehicle. 3-22