Hyundai Sonata Owners Manual

Defogging logic
Features of your vehicle / Windshield defrosting and defogging / Defogging logic

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

Manual climate control system

Hyundai Sonata: Defogging logic. 1. Turn the ignition switch to the ON position.

1. Turn the ignition switch to the ON position.
2. Turn the mode selection knob to the defrost position (Hyundai Sonata: Defogging logic. 3. Push the air intake control button at least 5 times within 3 seconds.).
3. Push the air intake control button at least 5 times within 3 seconds.

The indicator light in the air intake control button will blink 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 programmed defogging logic.

Automatic climate control system

Hyundai Sonata: Defogging logic. 1. Turn the ignition switch to the ON position.

1. Turn the ignition switch to the ON position.
2. Select the defrost position pressing defrost button (Hyundai Sonata: Defogging logic. 3. While holding the air conditioning button (A/C) pressed, press the air intake).
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


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