2013 Hyundai Sonata Owner's Manual - Page 146

Features of your vehicle Immobilizer indicator Without smart key system This light illuminates when the immobilizer key is inserted and turned to the ON position to start the engine. At this time, you can start the engine. The light goes out after the engine is running. If this light blinks when the ignition switch is in the ON position before starting the engine, have the system checked by an authorized HYUNDAI dealer. With smart key system (if equipped) If any of the following occurs in a vehicle equipped with the smart key, the immobilizer indicator illuminates, blinks or the light goes off. • When the smart key is in the vehicle, if the engine start/stop button is turned to the ON position, the indicator will illuminate until the engine is started. However, when the smart key is not in the vehicle, if the engine start/stop button is depressed, the indicator will blink for a few minutes to indicate that you will not be able to start the engine. • When the ignition switch is turned to the ON position and the indicator turns off after 2 seconds, the system may need repair. Have the vehicle checked by an authorized HYUNDAI dealer. • When the battery is weak, if the engine start/stop button is depressed, the indicator will blink and you will not be able to start the engine. However, you may still be able to start the engine by inserting the smart key in the smart key holder. If smart key system related parts need repair, the indicator blinks. Malfunction indicator light (MIL) (check engine light) Low fuel level warning light This warning light indicates the fuel tank is nearly empty. When it comes on, you should add fuel as soon as possible. Driving with the fuel level warning light on or with the fuel level below "E" can cause the engine to misfire and damage the catalytic converter. This indicator light is part of the Engine Control System which monitors various emission control system components. If this light illuminates while driving, it indicates that a potential malfunction has been detected somewhere in the emission control system. This light will also illuminate when the ignition switch is turned to the ON position, and will go out in a few seconds after the engine is started. If it illuminates while driving, or does not illuminate when the ignition switch is turned to the ON position, take your vehicle to your nearest authorized HYUNDAI dealer and have the system checked. Generally, your vehicle will continue to be drivable, but have the system checked by an authorized HYUNDAI dealer promptly. 4 65