Is the Smartkey also an ignition immobilizer?
 

I just got a 2010 Lancer Sportback and I had a question. If the key is not in the vehicle, but it's left running, will the car shut off if it's driven away? I drove about 20 yards away from the keys, and it didn't shut off, but I didn't want to go around the block and have it shut off on me.