If the engine doesn't turn over or turns over slowly
Do not push or pull the vehicle to start it. This could cause damage to your vehicle. See instructions for "Jump Starting" provided in this chapter.
CAUTION
Push or pull starting the vehicle may cause the catalytic converter to overload which can lead to damage to the emission control system.
If the engine turns over normally but doesn't start
If the engine still does not start, we recommend that you call an authorized HYUNDAI dealer for assistance.
Hyundai Kona (OS) 2018-2021 Owners Manual: Immobilizer Indicator Light (without smart key)
This indicator light illuminates:
When the vehicle detects the immobilizer in the key with the ignition
switch in the ON position. - At this time, you can start the engine. - The
indicator light goes off after starting the engine.
This indicator light blinks:
When there is a malfunction wi ...
Hyundai Kona (OS) 2018-2021 Service Manual: Input shaft speed sensor 1 Repair procedures
Removal
1.
Remove the cleaner assembly and air duct.
(Refer to Engine Mechainical System - "Air Cleaner")
2.
Remove the battery and battery tray.
(Refer to Engine Electrical System - "Battery")
...