2012 Hyundai Elantra Owner's Manual - Page 87

Features of your vehicle ✽ NOTICE When starting the engine, do not use the key with other immobilizer keys around. Otherwise the engine may not start or may stop soon after it starts. Keep each key separate in order to avoid a starting malfunction. 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. To deactivate the immobilizer system: Turn the engine start/stop button to the ON position by pressing the button while carrying the smart key. To activate the immobilizer system: Turn the engine start/stop button to the OFF position. The immobilizer system activates automatically. Without a valid smart key for your vehicle, the engine will not start. CAUTION Do not put metal accessories near the smart key. The engine may not start because the metal accessories may interrupt the transponder signal from transmitting normally. WARNING In order to prevent theft of your vehicle, do not leave spare keys anywhere in your vehicle. Your Immobilizer password is a customer unique password and should be kept confidential. Do not leave this number anywhere in your vehicle. ✽ NOTICE If you need additional keys or lose your keys, consult an authorized HYUNDAI dealer. 4 9