You can start the engine without inserting the key. For detailed information refer to the Engine Start/Stop button in chapter 5.
NOTICE
To prevent damaging the smart key:
Hyundai Kona (OS) 2018-2023 Service Manual: Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the glove box.
(Refer to Body - "Glove Box Upper Cover Assembly")
3.
Remove the smart key unit. ...
Hyundai Kona (OS) 2018-2023 Service Manual: Rear Seat Belt Retractor Components and components location
Component Location
1. Rear seat belt retractor
...