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268 5-2. Using the air conditioning system and defogger LEXUS NX300h Owners Manu- al_USA_M78287_en ■ Windshield wiper de-icer (if ■ 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 outside/recir- culated air mode switch. ■ Fogging up of the windows ● The windows will easily fog up when the humidity in the vehicle is high. Pressing “A/C” button or selecting “A/C” will dehumidify the air from the outlets and defog the windshield effectively. ● If you turn “A/C” off, the windows may fog up more easily. ● The windows may fog up if the recircu- lated air mode is used. ■ Outside/recirculated air mode ● When driving on dusty roads such as tun- nels or in heavy traffic, set the outside/ recirculated air mode switch to the recir- culated air mode. This is effective in pre- venting outside air from entering the vehicle interior. During cooling opera- tion, setting the recirculated air mode will also cool the vehicle interior effectively. ● Outside/recirculated air mode may auto- matically switch depending on the tem- perature setting or the inside temperature. ■ Registering air conditioning settings to electronic keys (vehicles with driving position memory) ● Unlocking the vehicle using an electronic key and turning the power switch to ON mode will recall that key’s registered air conditioning settings. ● When the power switch is turned off, the current air conditioning settings will auto- matically be registered to the electronic key that was used to unlock the vehicle. ● The system may not operate correctly if more than one electronic key is in the vicinity or if the smart access system with push-button start is used to unlock a pas- senger door. ● The doors that can recall the air condi- tioning setting when unlocked using the smart access system with push-button * For details, con- tact your Lexus dealer. * : The doors that can recall the driving posi- tion memory are changed at the same ■ Operation of the air conditioning sys- tem in Eco mode ● In the Eco mode, the air conditioning sys- tem is controlled as follows to prioritize fuel efficiency • Engine speed and compressor operation controlled to restrict heating/cooling capacity • Fan speed restricted when automatic mode is selected ● To improve air conditioning performance, perform the following operations • Adjust the fan speed • Adjust the temperature setting • Turn off Eco mode ● Even when the driving mode is set to Eco mode, the air conditioning eco mode can ■ When the outside temperature is low The dehumidification function may not operate even when “A/C” is pressed or “A/ C” is selected. ■ Ventilation and air conditioning odors ● To let fresh air in, set the air conditioning system to the outside air mode. ● During use, various odors from inside and outside the vehicle may enter into and accumulate in the air conditioning sys- tem. This may then cause odor to be |