Hyundai Sonata: Windshield defrosting and defogging

Hyundai Sonata: Windshield defrosting and defogging

WARNING - Windshield heating

Do not use the or position during cooling operation in extremely humid weather. The difference between the temperature of the outside air and that of the windshield could cause the outer surface of the windshield to fog up, causing loss of visibility. In this case, set the mode selection knob or button to the position and fan speed control knob or button to a lower speed.

• For maximum defrosting, set the temperature control to the extreme right/hot position and the fan speed control to the highest speed.

• If warm air to the floor is desired while defrosting or defogging, set the mode to the floor-defrost position.

• Before driving, clear all snow and ice from the windshield, rear window, outside rear view mirrors, and all side windows.

• Clear all snow and ice from the hood and air inlet in the cowl grill to improve heater and defroster efficiency and to reduce the probability of fogging up the inside of the windshield.

• Manual climate control system
• Automatic climate control system
• Defogging logic

Manual climate control system

To defog inside windshield

1. Select any fan speed except “0” position.
2. Select desired temperature.
3. Select the or position.
4. The outside (fresh) air will be selected automatically.

If the outside (fresh) air position is not selected automatically, press the corresponding button manually.

To defrost outside windshield

1. Set the fan speed to the highest (extreme right) position.
2. Set the temperature to the extreme hot position.
3. Select the position.
4. The outside (fresh) air will be selected automatically.

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 the outside (fresh) air position is not selected automatically, adjust the corresponding button manually.
If the position is selected, lower fan speed is adjusted to a higher fan speed.

To defrost outside windshield

1. Set the fan speed to the highest (extreme right) position.
2. Set the temperature to the extreme hot (HI) position.
3. Press the defrost button ().
4. The outside (fresh) air position will be selected automatically.
If the position is selected, lower fan speed is adjusted to a higher fan speed.

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 systemStorage compartments