This indicator light illuminates:
Hyundai Kona (OS) 2018-2024 Service Manual: Side Airbag (SAB) Module Description and operation
Description
The Side Airbags (SAB) are installed inside the front seat and protects the
driver and passenger from danger when side crash occurs. The SRSCM determines
deployment of side airbag by using Side Impact Sensor (SIS) signal.
...
Hyundai Kona (OS) 2018-2024 Service Manual: Auto Light Sensor Repair procedures
Inspection
Check if the auto light control operates like a timing chart shown below.
Tail lamp output and head lamp (Low) output is controlled based on the auto
light sensor's input (illumination intensity) when the Auto Light Switch
in Multi-Function Switch is ...