Smart key precautions
The smart key may not work if any of the following occur:
If the smart key does not work correctly, open and close the door with the mechanical key. To start the engine, press the Button Start ignition switch directly with the smart key. If you have a problem with the smart key, contact an authorized HYUNDAI dealer.
If the smart key is in close proximity to your mobile phone, the signal could be blocked by your mobile phone’s operational signals. This is specifically relevant when the phone is active such as making and receiving calls, text messaging, and/or sending/receiving emails. If possible, avoid keeping the smart key and your mobile phone in the same location such as pants or jacket pocket to avoid interference between the two devices.
NOTICE
Replacing the battery
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Battery type: CR2032
To replace the battery:
1. Remove the mechanical key.
2. Use a slim tool or utility blade to open the cover of the smart key. Use caution not to damage the smart key.
3. Remove the old battery and insert a new one. 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, contact an authorized HYUNDAI dealer.
WARNING
This product contains a button battery. If swallowed, a lithium button battery can cause severe or fatal injuries within 2 hours. Keep batteries out of reach of children.
If you think batteries may have been swallowed or placed inside any part of the body, seek immediate medical attention.
Information
Always dispose batteries in accordance with local laws and regulations.
Using the mechanical key. Key cylinder (Driver door). Loss of a smart key
Immobilizer SystemHyundai Tucson (NX4) 2022-2025 Service Manual: Stop Lamp Switch
- Components
1. Brake member assembly2. Stop lamp switch3. Brake pedal arm assembly4. Brake pedal pad
- Schematic Diagram
- System circuit diagram
- Terminal Function
TeminalDescription
1IGN1
2Engine Control Module (ECM)
3-
4B+
5Stop Lamp
6Gruound
- Adjust ...
Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Cluster Display Messages
Shift to P (if equipped with smart
key)
This message appears if the Push Button
Start ignition switch is pressed to the
OFF position without the gear in the P
(Park) position.
If this occurs, the Push Button Start
ignition switch goes to the ACC position.
Low key battery (if equipped wi ...