The system operates only when the driver is in the vehicle or within operational range while the key is being carried.
Starting the Engine
With the advanced keyless function

Without the advanced keyless function

If the vehicle is started and the key is not in the vehicle, the vehicle will not restart after it is shut off and the ignition is switched to off.
Smart Key
Key Suspend FunctionThe fuel gauge shows approximately how much fuel is remaining in the tank when the ignition is switched ON. We recommend keeping the tank over 1/4 full.
