Instrument panel illumination

When the vehicle's position lights or headlamps are on, press the illumination control button to adjust the brightness of the instrument panel illumination.
When pressing the illumination control button, the interior switch illumination intensity is also adjusted.
WARNING
Never adjust the instrument cluster while driving. This could result in loss of control and lead to an accident that may cause death, serious injury, or vehicle damage.

Instrument clusterHyundai Kona (OS) 2018-2025 Owners Manual: Maintenance Under Severe Usage and Low Mileage Conditions (Gasoline Engine,
for Europe)
The following items must be serviced more frequently on cars mainly used under
severe and low mileage driving conditions. Refer to the chart below for the appropriate
maintenance intervals.
R : Replace
I : Inspect and if necessary, adjust, correct, clean or replace
Severe driving conditions
A : ...
Hyundai Kona (OS) 2018-2025 Service Manual: Description and operation
Description
The immobilizer system will disable the vehicle unless the proper ignition
key is used, in addition to the currently available anti-theft systems such
as car alarms, the immobilizer system aims to drastically reduce the rate
of auto theft.
1.
...