Description & Operation
Vehicles equipped with Vehicle Theft Security System (VTSS), also known as Vehicle Theft Alarm (VTA) system, are protected from vehicle theft and unauthorized entry. VTA system monitors vehicle doors, hood, liftgate and ignition. If an attempt is made to enter or operate vehicle without proper disarming of system, vehicle horn will sound, headlights, taillights and parking lights will flash, and engine will be prevented from running.
VTA system arms when ignition is off, vehicle is exited, door is locked using power door locks and door is closed. Alternatively a remote keyless entry transmitter can be used to arm system. A security light on panel will flash for 15 seconds to indicate system is arming. At the end of 15 seconds, if no door, hood or tailgate is opened, system is armed.
If alarm is triggered, horn will sound for 3 minutes and lights will flash for an additional 15 minutes. If horn sounds 3 times when either front door is unlocked, vehicle has been tampered with (tamper alert). If doors are locked manually or with key, system will not arm (manual override). If an unauthorized entry does occur, VTA system signals Powertrain Control Module (PCM) to prevent vehicle from being driven. PCM reduces injector pulse width to zero causing a start and stall condition.
System can be disarmed with the keyless entry transmitter or by using key to enter vehicle. In both instances, if alarm was activated vehicle alarm will be terminated. If battery is disconnected and reconnected, alarm will be activated and it will be necessary to disarm system as indicated.