Automatic Ventilation
When the ignition switch is in the ON position or when the engine is running and outside temperature is below 59°F (15°C). At the same time, when A/C mode is off and mode is Bi-Level or Floor mode with the recirculated air position selected more than five minutes, the air intake position will automatically change to the outside (fresh) air position.
To cancel or reset the Automatic Ventilation
When the air conditioning system is on, select Face Level
mode and while
pressing the A/C button, press the recirculated air position button five times within
three seconds.
Sunroof Inside Air Recirculation
When the heater or air conditioning system is on with the sunroof opened, the outside (fresh) air position will be automatically selected. At this time, if you press the recirculated air position button, the recirculated air position will be selected but will change back to the outside (fresh) air position after 3 minutes.
When the sunroof is closed, the air intake position will return to the original position that was selected.
Hyundai Sonata LF 2014-2019 Owners Manual: Limitation of SMART mode
The SMART mode may be limited in following situations. (The OFF indicator illuminates
in those situations.)
The driver manually moves the shift lever : It deactivates SMART mode. The
vehicle drives, as the driver manually moves the shift lever.
The cruise control is activated : The cruise cont ...
Hyundai Sonata LF 2014-2019 Service Manual: Mode Control Actuator Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the mode control actuator connector.
3.
Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4.
Verify that the mode control actuator operates to the vent mod ...