Activated automatically when the vehicle is locked using the standard keyless access. The LED intimidation indicator flashes, and when an alarm occurs the hazard lights flash and the security horn sounds to alert you to an abnormality. Cannot be installed together with a remote engine starter. Comes with a large indicator with built-in intrusion and tilt sensors. The "LED intimidation indicator" flashes while the device is in operation, and when an alarm occurs the hazard lights flash and the horn sounds to alert you to an abnormality.