Hyundai Sonata LF Owner's Manual page 223

MAX A/C-Level (B, D, F)
To operate the MAX A/C, turn the
mode selection knob to extreme left.
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.
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Instrument panel vents
The outlet vents can be opened or
closed separately using the thumb-
wheel.
Also, you can adjust the direction of
air delivery from these vents using
the vent control lever as shown.
Temperature control
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The temperature control knob allows
you to control the temperature of the
air flowing from the ventilation system.
To change the air temperature in the
passenger compartment, turn the
knob to the right position for warm and
hot air or left position for cooler air.
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