Hyundai Tucson (LM) 2010-2015 Owners Manual: Remote key
To lock the doors, press the Door Lock button (1) on the remote key.
Press the Door Unlock button (2) on the remote key, the driver’s door will unlock.
If you press the Door Unlock button on the remote key again within four seconds,
then all the doors will unlock.
Once the doors are unlo ...
Hyundai Tucson (LM) 2010-2015 Owners Manual: Smart key precautions
The smart key will 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 transmitter.
The smart key is near a mobile two way radio system or a cellular phone.
Another veh ...