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 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