2013 Lexus RX 450h Owners Manual - Page 1301

1. AIR CONDITIONING SYSTEM OPERATION INFORMATION ● When the outside temperature exceeds 75°F (24°C) and the air conditioning system is on • In order to reduce the air conditioning power consumption, the air conditioning system may switch to recirculated air mode automatically. This may also reduce fuel consumption. • Recirculated air mode is selected as a default mode when the "POWER" switch is turned to ON mode. • It is possible to switch to outside air mode at any time by pressing the air intake control button. ● Window defogger feature • Recirculated air mode may automatically switch to outside air mode in situations where the windows need to be defogged. ● When outside temperature approaches 32°F (0°C) • The air conditioning system may not operate even when "A/C" is selected. ● Automatic air intake change mode In automatic mode, the system automatically switches between recirculated air and outside air modes according to whether the system detects harmful substances such as exhaust gas in the air outside. If automatic mode is selected when only the fans are operating, the air conditioning system will turn on automatically. ● Air conditioning filter • The air conditioning filter may clog after long use. The filter may need to be replaced if the air flow of the air conditioner and heater experiences extreme reductions in operating efficiency, or if the windows become to fog up easily. (For details, refer to "Owner's Manual".) ● Customization • Settings can be changed. (For details, refer to "Owner's Manual".) 328 RX450h/350_Navi_U