Hyundai Kona: Smart key / Battery replacement
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
The smart key may not work if any of the following occur:
The smart key is close to a radio transmitter such as a radio station
or an airport which can interfere with normal operation of the trans ...
Immobilizer system
The immobilizer system protects your vehicle from theft. If an improperly coded
key (or other device) is used, the engine’s fuel system is disabled.
When the ignition switch is placed in the ON pos ...
Other information:
Hyundai Kona (OS) 2018-2025 Service Manual: Crankshaft Position Sensor (CKPS) Description and operation
Description
Crankshaft Position Sensor (CKPS) detects the crankshaft position and is one
of the most important sensors of the engine control system. If there is no CKPS
signal input, the engine may stop because of CKPS signal missing.
This sensor is installed in ladder fram ...
Hyundai Kona (OS) 2018-2025 Service Manual: Intake Air Temperature Sensor (IATS) Description and operation
Description
Intake Air Temperature Sensor (IATS) is included inside Manifold Absolute Pressure
Sensor and detects the intake air temperature.
To calculate precise air quantity, correction of the air temperature is needed
because air density varies according to the temperatu ...
