Hyundai Equus: Defogging logic

To reduce the possibility of fogging up the inside of the windshield, the air intake is controlled automatically according to certain conditions such as or
position. To cancel or return the defogging
logic, perform the following steps:

1. Turn the Engine Start/Stop Button to the ON position.
2. Select the defrost position pressing defrost button ( ).

3. While holding the air conditioning button (A/C) pressed, press the air intake control button at least 5 times within 3 seconds.

The indicator on the air intake control button blinks 3 times with 0.5 second of interval. It indicates that the defogging logic is canceled or returned to the programmed status.

If the battery has been discharged or disconnected, the system resets to the preprogrammed defogging logic

Auto defogging system (if equipped)

Auto defogging reduces the probability of fogging up the inside of the windshield by automatically sensing the moisture on the inside of the windshield.

The auto defogging system operates when the heater or air conditioning is on.

This indicator illuminates when the auto defogging system senses the moisture on the inside of the windshield and operates.

If more moisture is in the vehicle, the automated steps operate as follows: If auto defogging does not defog the window at step 1, outside air position, step 2, blowing air toward the windshield occurs.

Step 1 : Outside air position

Step 2 : Operating the air conditioning

Step 3 : Blowing air toward the windshield

Step 4 : Increasing air flow toward the windshield

The auto defogging system is automatically activated when the conditions are met. However, if you would like to cancel the auto defogging system, press the front defroster button 4 times within 2 seconds while pressing the AUTO button. The indicator of the front defroster button will blink 3 times to notify you that the system is cancelled. To use the auto defogging system again, follow the procedures mentioned above.

If the battery has been disconnected or discharged, it resets to the auto defogging status.

✽ NOTICE

When the air conditioning is turned on and the outside air position is selected by the auto defogging system, if you try to turn off the air conditioning and select the recirculated air position, the indicator will blink 3 times and the air conditioning will not be turned off and recirculated air position will not be selected.

CAUTION

Do not remove the sensor cover located on the upper end of the driver side windshield glass. Damage to system parts could occur and may not be covered by your vehicle warranty.