Kia Optima: Windshield defrosting and defogging

Kia Optima: 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 inside of the windshield.

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 and air conditioning will be selected automatically.

If the air-conditioning and outside (fresh) air position are 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 and air conditioning 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 air-conditioning will be turned on according to the detected ambient temperature, outside (fresh) air position and higher fan speed will be selected automatically.

If the air-conditioning, outside (fresh) air position and higher fan speed are not selected automatically, adjust the corresponding button or knob manually.

If the position is selected, lower fan speed is switched to higher fan speed.

To defrost outside windshield

1. Set fan speed to the highest position.

2. Set temperature to the extreme hot (HI) position.

3. Press the defrost button ().

4. The air-conditioning will be turned on according to the detected ambient temperature and outside (fresh) air position will be selected automatically.

If the position is selected, lower fan speed is switched to higher fan speed.

Defogging logic

To reduce the probability of fogging up the inside of the windshield, the air intake or air conditioning are controlled automatically according to certain conditions such as or position.To cancel or return the defogging logic, do the followings.

Manual climate control system

1. Turn the ignition switch to the ON position.

2. Turn the fan speed control knob to the “OFF” position.

3. Turn the mode selection knob to the defrost position ().

4. 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, it is reset to the default defog logic status.

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 A/C display 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, it is reset to the default defog logic status.

Automatic climate control systemStorage compartments