This button is used to select the outside (fresh) air position or recirculated air position.
Recirculated air position
With the recirculated air position selected, air from the passenger compartment will be drawn through the heating system and heated or cooled according to the function selected.
Outside (fresh) air position
With the outside (fresh) air position selected, air enters the vehicle from outside and is heated or cooled according to the function selected.
Information
Prolonged use of the air conditioning with the recirculated air position selected will result in excessively dry air in the passenger compartment.
WARNING
Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Components Location
1. Automatic transaxle2. Oil filter3. Mechanical oil pump4. Converter housing5. Torque converter
...
Hyundai Elantra AD (2016-2020) Service Manual: Heated Steering wheel Schematic Diagrams
System Circuit Diagram
Body control unit
Heated steering wheel pad
Heated steering wheel switch
Termainal function
Body contorl unit
PinFunctionC22Ignition 2_Heated handle powerC11Heated handleA21NTC (-)B15NTC (+)D10Heated handle IND.
Heated steering wheel pad
HousingPinFun ...