Hyundai Elantra MD/UD: Loss of the smart key - Smart key (if equipped) - Features of your vehicle - Hyundai Elantra MD 2010-2015 Owners manualHyundai Elantra MD/UD: Loss of the smart key

A maximum of 2 smart keys can be registered to a single vehicle.

If you happen to lose your smart key, you will not be able to start the engine. You should immediately take the vehicle and remaining key to your authorized HYUNDAI dealer(tow the vehicle, if necessary) to protect it from potential theft.

Start-up
You can start the engine without inserting the key. For detailed information refer to the “Engine start/stop button” in section 5. ...

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 th ...