Kia Optima: Windshield defrosting and defogging / Automatic climate control system

Kia Optima DL3 2019-2021 Owner's Manual / Features of your vehicle / Windshield defrosting and defogging / Automatic climate control system

To defog inside windshield

1. Set the fan speed to the desired position.

2. Select desired temperature.

3. Press the defroster button ().

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

If the air conditioning and outside (fresh) air position are 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 position.

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

3. Press the defroster button ().

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

Manual climate control system
To defog inside windshield 1. Set the fan speed to the desired position. 2. Select desired temperature. 3. Select the or position. 4. The outside (fresh) air and air conditioning will be sele ...

Defogging logic
To reduce the possibility of fogging up the inside of the windshield, the air intake or air conditioning is controlled automatically according to certain conditions such as or position. To canc ...

Other information:

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