Hyundai Sonata: Defogging logic - Windshield defrosting and defogging - Features of your vehicleHyundai Sonata: 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 position. To cancel or return the or defogging logic, perform the following steps. position. To cancel or return the defogging logic, perform the following steps.

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 ...

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 ...

See also:

Ambient Temperature Sensor (ATS) Schematic Diagrams
Circuit Diagram ...

Heater & A/C Control Unit (DATC) Components and Components Location
Components Connector [A] Pin NOFunctionPin NOFunction1ILL+ (TAIL)21Detent OUT (+)2Sensor REF (+5V)22HTD (Rear defog indicator)3Mode control actuator (Vent)23Rear defog switch4Mode control actuator ...

General Information
General Information The supplemental restraint system (SRS) is designed to supplement the seat belt to help reduce the risk or severity of injury to the driver and passenger by activating and d ...