Kia Optima DL3: 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.
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 selected automatically.
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.
Other information:
Kia Optima DL3 2019-2026 Service and Repair Manual: Photo Sensor
Description and operation Description The photo sensor is located at the center of the defrost nozzles. The photo sensor contains a photovoltaic (sensitive to sunlight) diode. The solar radiation received by its light receiving portion, generates an electromotive force in proportion to the amount of radiation received which is
Kia Optima DL3 2019-2026 Service and Repair Manual: Auto Defogging Sensor
Description and operation Description The auto defogging sensor is installed on the front window glass. The sensor judges and sends signal if moisture occurs to blow out wind for defogging. The air conditioner control module receives signal from the sensor and restrains moisture and eliminate defog by controlling the intake actu
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