
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 auto defogging system does not work if you push the Air intake control button, Air conditioning button, or Mode selection button with the Auto Defogging system in operation. To ensure a proper view, do not press the following buttons while the auto defogging system is in operation.

This indicator illuminates 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 1 Outside air position, it tries to defog again at step 2 Operating the air conditioning.
Step 1 : Outside air position
Step 2 : Operating the air conditioning
Step 3 : Blowing air flow toward the windshield
Step 4 : Increasing air flow toward the windshield
To cancel or reset the Auto Defogging System
Press the front windshield defroster button for 3 seconds when the ignition switch is in the ON position. When the ADS system is canceled, Indicator on the button will blink 3 times per 0.5 sec and the position “ADS OFF” will be displayed on the climate control information screen. When the ADS system is reset, Indicator on the button will blink 6 times per 0.25sec and the position “ADS OFF” will be disappeared on the climate control information screen. You can set or release the Auto Defogging System on the AVN Climate Information selection screen. If the battery is discharged or detached, the auto defogging system will be reset. Adjust the feature accordingly.
CAUTION
Do not remove the sensor cover located on the upper end of the passenger side windshield glass. Damage to the system parts could occur and may not be covered by your vehicle warranty.
Kia Stinger (CK) 2018-2023 Owner's Manual: Outside Rear View Mirror
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