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This warning light illuminates:
Parking Brake & Brake Fluid Warning Light
Electronic Brake Force Distribution (EBD) System Warning LightHyundai Kona (OS) 2018-2025 Service Manual: Alternator Description and operation
Description
The Alternator has eight built-in diodes, each rectifying AC current to DC current.
Therefore, DC current appears at alternator "B" terminal.
In addition, the charging voltage of this alternator is regulated by the battery
voltage detection system.
...
Hyundai Kona (OS) 2018-2025 Owners Manual: Non-operational conditions of Parking Distance Warning (Reverse) system
The Parking Distance Warning (Reverse) system may not operate normally when:
Moisture is frozen to the sensor.
Sensor is covered with foreign matter, such as snow or water, or the sensor
cover is blocked.
There is a possibility of the Parking Distance Warning (Reverse) system malfunction
when ...