
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
Temperature control
Fan speed control / Air conditioningHyundai Elantra AD (2016-2020) Service Manual: Battery Sensor Repair procedures
Removal
1.
Disconnect the battery negative (-) cable.
2.
Disconnect the battery sensor connector (A).
3.
Remove the battery negative (-) cable after removing the bolts (B).
Installation
1.
Install in the reverse order of removal.
Battery sensor cable installation bolt :
10.8 ~ ...
Hyundai Elantra AD (2016-2020) Service Manual: Fuel Tank Repair procedures
Removal
1.
Release the residual pressure in fuel line.
(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line")
2.
Remove the rear seat cushion.
(Refer to Body - "Rear Seat Assembly")
3.
Remove the fuel pump service cover (A).
4.
Disconnect the fuel pump connect ...