Fan speed control
Turn the knob to the right to increase the fan speed and airflow. Turn the knob to the left to decrease fan speed and airflow.
Setting the fan speed control knob to the "0" position turns off the fan.
Air conditioning
Press the A/C button to turn the system on (indicator light will illuminate) and off.
Hyundai Elantra AD (2016-2020) Service Manual: Heater Unit Repair procedures
Replacement
When prying with a flat-tip screwdriver or use a prying trim
tool, wrap it with protective tape, and apply protective tape around the
related parts, to prevent damage.
1.
Disconnect the negative (-) battery terminal.
2.
Recover the refrigerant with a ...
Hyundai Elantra AD (2016-2020) Service Manual: Height Adjust Components and Components Location
Component Location
1. Height adjust
...