Auto Defogging System (ADS)
Auto defogging reduces the probability of fogging up the inside of the windshield by automatically sensing the moisture of inside the windshield.

The auto defogging system operates when the heater or air conditioning is on.
The indicator appears when the auto defogging system senses the moisture on the inside of the windshield and operates.
The auto defogging system addresses excess moisture on the inside of the windshield in stages. For example if auto defogging does not defog inside the windshield at step Auto Defogging System (ADS) Outside air position, it tries to defog again at step Auto Defogging System (ADS) Operating the air conditioning.
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Outside air position
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Operating the air conditioning
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Increasing air flow toward the windshield
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Blowing air flow toward the windshield