2010 Volvo V70 Owner's Manual - Page 129

04 Comfort and driving pleasure Climate system Interior Air Quality System-IAQS* This system consists of a multifilter and an air quality sensor. The filter helps remove gases and particles from the incoming air, thereby reducing the amounts of odors and contaminants entering the vehicle. The air quality sensor detects increased levels of contaminants in the outside air. When the air quality sensor detects contaminated outside air, the air intake closes and the air inside the passenger compartment is recirculated, i.e., no outside air enters the vehicle. The filter also cleans recirculated passenger compartment air. When the AUTO button is depressed the air quality sensor is always engaged. Activating the air quality sensor Switch between the three functions by pressing the button repeatedly. NOTE • • The air quality sensor should always be engaged in order to obtain the best air in the passenger compartment. Recirculation is limited in cold weather to avoid fogging. If the insides of the windows start fogging, disengage the air quality sensor. Use the defroster function to increase airflow to the front, side, and rear windows. • The left orange light comes on - the air quality sensor is disengaged. • • The center green light comes on - recirculation not engaged, providing it is not required for cooling in hot weather. 04 • The right orange light comes on - recirculation is engaged. `` * Option/accessory, for more information, see Introduction. 129