Hyundai Sonata: OFF mode

Push the OFF button to turn off the air climate control system. However, you can still operate the mode and air intake buttons as long as the ignition switch is in the ON position.
The vented air will be at the last set temperature. Adjust the desired vented temperature setting accordingly before pressing the OFF button.
Air conditioning
Push the A/C button to turn the air conditioning system on (indicator light will
illuminate).
Push the button again to turn the air conditioning system off. ...
Climate information screen selection button
To change the screen into the climate information screen, press the climate information
screen selection button. ...
See also:
Illuminated engine start/stop button
Whenever the front door is opened, the engine start/stop button will illuminate
for your convenience. The light will go off after about 30 seconds when the door
is closed. ...
Output Speed Sensor. Specifications
Specification
Item
Specification
Type
Hall Effect Sensor, 2pins
(Power: 9V, Signal)
Operation condition
-40 ...
Start/Stop Button. Components and Components Location
Component
...
