Its not only AWD, may EX and Limited din....Limited AWD ki _roksan_ heavy....
*_roksan_ , you don't have to put your remote in the consul box, just inside your pocket or bag will do. Only time you have to place it in the slot inside the consul box is when you can't start your car due to poor battery inside the remote.
I think you got the immobilizer, its a transmitter inside the remote/smart key working together with the alarm and ECU, when the engine started, it check for the presence of this transmitter, if he can not find any, the vehicle should automatically shut off the engine. But this only happen during starting, when the engine have started and running, even with the smart key taken out far from the vehicle, the engine will not shut down itself.