A maximum of two smart keys can be registered to a single vehicle. If you happen to lose your smart key, it is recommended that you should immediately take the vehicle and remaining key to your authorized HYUNDAI dealer or tow the vehicle, if necessary.
Hyundai Kona (OS) 2018-2022 Service Manual: Photo Sensor Repair procedures
Inspection
1.
Turn the ignition switch ON.
2.
Connect the GDS.
3.
Emit intensive light toward the photo sensor using a lamp, and check
the output voltage change.
...
Hyundai Kona (OS) 2018-2022 Service Manual: Relay Box (Passenger Compartment) Repair procedures
Fuse Inspection
1.
Be sure there is no play in the fuse holders, and that the fuses
are held securely.
2.
Are the fuse capacities for each circuit correct?
3.
Are there any blo ...