
If the Smart Key is not working properly, try replacing the battery with a new one.
Battery Type: CR2032
To replace the battery:
1. Remove the mechanical key.
2. Use a slim tool to pry open the rear cover
of the smart key.
3. Remove the old battery and insert the new battery. Make sure
the battery position is correct.
4. Reinstall the rear cover of the smart key.
If you suspect your smart key might have sustained some damage, or you feel your smart key is not working correctly, it is recommended that you contact an authorized HYUNDAI dealer.
Information

An inappropriately disposed battery can be harmful to the environment and human health. Dispose of the battery according to your local law(s) or regulations.
Smart key precautions
Immobilizer systemHyundai Kona (OS) 2018-2026 Service Manual: Idler Repair procedures
Removal and Installation
1.
Remove the drive belt.
(Refer to Timing System - "Dreve Belt")
2.
Remove the idler (A).
Tightening torque :
42.2 - 53.9 N.m (4.3 - 5.5 kgf.m, 31.1 - 39.8 ...
Hyundai Kona (OS) 2018-2026 Service Manual: General information
Basic Service Symbols
There are five primary symbols used to complement illustrations. These symbols
indicated the materials to be applied to parts during service.
Symbol
Meaning
Do not reuse the part. Replace a new o ...