Hyundai Elantra MD/UD: MAX A/C-Level (B, D) (if equipped)
To operate the MAX A/C, turn the fan speed control knob to the right then press the MAX A/C button. Air flow is directed toward the upper body and face. In this mode, the air conditioning and the recirculated air position will be selected automatically.
Instrument panel vents
The outlet vents can be opened or closed separately using the thumbwheel.
Also, you can adjust the direction of air delivered from these vents using the vent control lever as shown.