Hyundai Sonata: 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 or position. To cancel or return the defogging logic, perform the following steps.
Manual climate control system
1. Turn the ignition switch to the ON position.
2. Turn the mode selection knob to the defrost position ().
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
1. Turn the ignition switch 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 programmed defogging logic.
Automatic climate control system
To defog inside windshield 1. Select desired fan speed. 2. Select desired temperature. 3. Press the defrost button ( ). 4. The outside (fresh) air position will be selected automatically. If th ...Storage compartments
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Wash the vehicle regularly to prevent corrosion of the body and suspension components.
Also, wash the vehicle promptly after driving on any of the following surfaces.
● roads that have been s ...
Air Bag Warning Light
The light should come on and remain on for four to eight
seconds as a bulb check when the ignition switch is first
turned ON. If the light is not lit during starting, see your
authorized dealer. ...