Hyundai Kona (OS) 2018-2025 Owners Manual: Downhill Brake Control (DBC) Indicator Light
This warning light illuminates:
Once you set the ignition switch or Engine Start/Stop Button to the ON
position. - It illuminates for approximately 3 seconds and then goes off.
When you activate the DBC system by pressing the DBC button.
This warning light blinks:
When the DBC is operating. ...
Hyundai Kona (OS) 2018-2025 Service Manual: Relay Box (Engine Compartment) Repair procedures
Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Pull out the relay from the engine compartment relay block.
Power Relay (Type A)
Check for continuity between the terminals.
...