Lexus NX350h 2022 Owner's Manual page 222

3-4. Driving when the windows or mirrors are fogged up
INFORMATION
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Fogging up of the windows
The windows will easily fog up when the humidity in the vehicle is high.
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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.
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● The windows may fog up if the recirculated air mode is used.
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