2009 Chevrolet Equinox Owner's Manual - Page 147

Using these settings together for long periods of time may cause the air inside of the vehicle to become too dry. To prevent this from happening, after the air inside of the vehicle has cooled, turn the recirculation mode off. The air conditioning system removes moisture from the air, so a small amount of water might drip under the vehicle while idling or after turning off the engine. ; (Outside Air): Press to turn the outside air mode on. An indicator light comes on to show that outside air is on. Air from outside the vehicle will circulate throughout the vehicle. The outside air mode can be used with all modes, but it cannot be used with the recirculation mode. Pressing ; will cancel the recirculation mode. @ (Recirculation): Press to turn the recirculation mode on. An indicator light comes on to show recirculation is on. The air inside the vehicle will be recirculated through the climate control system and the vehicle, not from outside the vehicle. It can be used to prevent outside air and odors from entering the vehicle or to help cool the air inside the vehicle more quickly. Avoid using the recirculation mode during high periods of humidity and cool outside temperatures since this may result in increased window fogging. If window fogging is experienced, select the defrost mode. Recirculation mode is not available in floor, defog or defrost modes and will shut off automatically and change to outside air. If the button is selected in these modes, the indicator will flash. This helps prevent window fogging and moisture building up within the cabin. 3-21