Hyundai Elantra: To deactivate the immobilizer system: - Smart key immobilizer system - Smart key (if equipped) - Features of your vehicle - Hyundai Elantra MD 2010-2015 Owners manualHyundai Elantra: To deactivate the immobilizer system:

Turn the engine start/stop button to the ON position by pressing the button while carrying the smart key.