Hyundai Tucson Owners & Service Manuals

Hyundai Tucson: Smart Key / Starting the vehicle

Some models are equipped with a Button Start ignition switch instead of a key cylinder. You can leave your smart key in your pocket or purse when you start your vehicle.

For more information, refer to the “Button Start Ignition Switch” section in Chapter 6.

Information

If the smart key is not moved for some time, the detection function for smart key operation will pause. Lift the smart key to activate the detection again.

NOTICE

To prevent damaging the smart key:

  • Keep the smart key in a cool, dry place to avoid damage or malfunction. Exposure to moisture or high temperature may cause the internal circuit of the smart key to malfunction. This may not be covered under warranty.
  • Avoid dropping or throwing the smart key.
  • Protect the smart key from extreme temperatures.
    Remotely moving vehicle forward or backward. Using panic alarm
    Remotely moving vehicle forward or backward (if equipped) Some models are equipped with the Remote Smart Parking Assist feature. With the smart key, the vehicle can be moved forward or backwa ...

    Using the mechanical key. Key cylinder (Driver door). Loss of a smart key
    Using the mechanical key If the smart key does not operate normally, you can lock or unlock the driver’s door by using the mechanical key. To remove the mechanical key from the smart key: ...

    Other information:

    Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Deactivating Smart Liftgate
    If you press any button on the smart key during the Detect and Alert stage, the smart liftgate is deactivated. If you press the door unlock button, the smart liftgate is deactivated temporarily. If you do not open any door for 30 seconds, the smart liftgate is activated again. ...

    Hyundai Tucson (NX4) 2022-2025 Service Manual: Troubleshooting
    - Troubleshooting     • Be careful not to short-circuit the wiring by the body or other wirings. • In case of discharging problem, measure dark current at all times.(Charging System - "Dark Current Inspection") • When checking the alternator main fuse, perform continui ...

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