Hyundai Kona: Manual heating and air conditioning / OFF mode (5)
Push the OFF button to turn the climate control system off. However, you can still operate the mode and air intake buttons as long as the ignition switch is in the ON position.
Air conditioning (4)
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. ...
System operation
...
Other information:
Hyundai Kona (OS) 2018-2021 Owners Manual: Smart key precautions
The smart key may not work if any of the following occur:
The smart key is close to a radio transmitter such as a radio station
or an airport which can interfere with normal operation of the transmitter.
The smart key is near a mobile two way radio system or a cellular phone.
Another vehicle†...
Hyundai Kona (OS) 2018-2021 Owners Manual: LKA system failure indicator
The LKA system failure indicator (yellow) will illuminate if the LKA system is
not working properly. We recommend that the system be checked by an authorized HYUNDAI
dealer.
When there is a problem with the system do one of the following:
Turn the system on after turning the engine off and on a ...