Convenient Features of Your Vehicle

Smart Key

~2min read

Your HYUNDAI uses a smart key that allows you to lock or unlock the doors (and trunk) and even start the engine.

1. Door Lock
2. Door Unlock
3. Trunk Opening
4. Panic

Locking

To lock:

1. Close all doors, the hood and the trunk.

2. Either press the door handle button or press the door lock button (1) on the smart key.

3. The hazard warning lights flash and the horn sounds.

4. Make sure the doors are locked by checking the position of the door lock button inside the vehicle.

Information

The door handle button will only work when the Smart Key is within 28~40 in. (0.7~1 m) of the outside door handle.

Even if you press the button on the outside door handle, the doors will not lock, and the horn will sound for three seconds if any of the following occurs:

  • The smart key is inside the vehicle.
  • The ENGINE START/STOP button is in the ACC or ON position.
  • Any door other than the tailgate is open.

WARNING

Do not leave the Smart Key in the vehicle with children unattended. Unattended children may press the ENGINE START/STOP button, operate the power windows or other controls, or even cause the vehicle to move, which may result in serious injury or death.

Unlocking

To unlock:

1. Carry the Smart Key.

2. Either press the button on the driver's outside door handle, or press the unlock button (2) on the Smart Key.

3. The driver's door will unlock. The hazard warning lights will flash twice.

If you press the driver's door outside handle button or the Smart Key unlock button again within four seconds, all doors will unlock.

Information

  • The door handle button will only work when the Smart Key is within 28~40 in. (0.7~1 m) of the outside door handle. Other people may also be able to open the doors.
  • If you press the front passenger's outside door handle while carrying the Smart Key, all doors will unlock.
  • After the doors are unlocked, they will automatically lock again after 30 seconds if no door is opened.

Opening the Trunk

To open:

1. Carry the Smart Key.

2. Either press the button on the trunk handle, or press and hold the trunk unlock button (3) on the smart key for more than one second.

3. The hazard warning lights will flash twice.

Once the trunk is opened and then closed, the trunk automatically locks.

Information

The tailgate handle button will only work when the Smart Key is within 28 in. (0.7 m) of the tailgate handle.

Panic button

Press and hold the panic button (4) for more than one second. The horn sounds and the hazard lights flash for approximately 30 seconds. To cancel panic mode, press any button on the smart key.

Test yourself

A quick Hyundai Sonata LF quiz: every answer comes with an explanation and a link to the manual page.