Hyundai Sonata: Smart key
With a smart key, you can lock or unlock a door (and trunk) and even start the engine without inserting the key.
The functions of buttons on a smart key are similar to the remote keyless entry. (Refer to the “Remote keyless entry” in this section.)
We do not recommend using this vehicle for trailer towing. ...
The headlamps, taillamps, license plate lamps, back-up lamps, dome lamps, and most of the interior lights turn on briefly when the Remote Keyless Entry (RKE) button is pressed, or when the ...
Switching between outside air and recirculated air modes
Press . The mode switches between outside air mode (the indicator is off) and recirculated air mode (the indicator is on) each time the button is pressed. ...