If the Smart Key does not operate normally, you can lock or unlock the door by using the mechanical key.

Press and hold the release button (1) and remove the mechanical key (2). Insert the mechanical key in to the key hole on the door.
To reinstall the mechanical key, put the key into the hole and push it until a click sound is heard.
Start-up
Loss of a smart keyHyundai Tucson (LM) 2010-2015 Service Manual: Engine Control Module (ECM) Schematic Diagrams
ECM Terminal And Input/Output signal [M/T]
ECM Terminal Function (M/T)
Connector [C200-MA]
Pin No.DescriptionConnected to1Injector (Cylinder #3) [High] control outputInjector (Cylinder #3)2Injector (Cylinder #4) [High] control outputInjector (Cylinder #4)3Injector (Cylinder #2) [Low] contro ...
Hyundai Tucson (LM) 2010-2015 Owners Manual: Answering Calls
Answering a Call
Answering a call with a Bluetooth® Wireless Technology device connected will
display the following screen.
To accept the call, press key on
the steering wheel while the call is incoming.
1) Caller : Displays the other party’s name when the incoming caller is saved
wit ...