Hyundai Elantra MD/UD: Smart key immobilizer system
Your vehicle is equipped with an electronic engine immobilizer system to reduce the risk of unauthorized vehicle use.
Your immobilizer system is comprised of a small transponder in the smart key and electronic devices inside the vehicle.
With the immobilizer system, whenever you turn the engine start/stop button to the ON position by pressing the button while carrying the smart key, it checks and determines and verifies if the smart key is valid or not.
If the key is determined to be valid, the engine will start.
If the key is determined to be invalid, the engine will not start.
