Ignition Tamper Detection with Alarm Notification: The Failsafe™ 103T-VSS is designed to automatically detect ignition tampering along with preventing the vehicle from being started, even with the key, in the event the ignition was turned ON before the system's security code is entered. Over 10 Billion Code Combinations that you can easily change an UNLIMITED amount of times as often as you need. Available in the Vehicle Specific Ready platform for over 500 different years, makes, and models of vehicles.