the car comes with both a factory security system and with the immobilizer system.
the factory security system will sound the horn if someone enters the car without first disabling the alarm by using the keyless remote or the door key.
the immobilizer prevents the car from being started without an authorized ignition key. the key has a chip in it that has to match the computer on board for the car to start.
it does not have a vibration alarm that goes off if someone tries to break a window or tow the car.
hope that helps
