Anti-Theft - Active (G2298876): Operation: Arming

Perimeter mode

The anti-theft active system is armed in the perimeter mode when the vehicle is either locked or double locked using the lock switch on the smart key.

Smart key switch selection and the lock/unlock switch selection on the exterior door handles are relayed to the Body Control Module/Gateway Module (BCM/GWM). The signal is sent by the Remote Function Actuator (RFA) on the High Speed (HS) Controller Area Network (CAN) body systems bus.

Perimeter mode only monitors the hinged panels and validity of the smart key in the RFA.

Perimeter Mode - Vehicles With Passive Entry System

The anti-theft active system is armed in the perimeter mode when the lock/unlock switch on one of the exterior door handles is used.

Perimeter With Alarm Sensing Mode

The volumetric sensor monitors the passenger compartment for intrusion. The Battery Back-Up Sounder (BBUS) (if equipped), which incorporates a tilt sensor, monitors also the vehicle attitude when perimeter with alarm sensing mode is active.

Perimeter with alarm sensing mode is activated by the following manner:

A second press of the lock switch on the smart key.
Using the lock switch on one of the exterior door handles, on vehicles with the passive entry system.

The second press of the switch must occur within 3 seconds of the first press. The second press of the lock switch also activates the perimeter sensing double locking feature.

In certain markets (Benelux) the volumetric sensors (if equipped) are activated on single lock as per latest market requirements.

The Body Control Module/Gateway Module (BCM/GWM) arms the active anti-theft system when it single locks or double locks the vehicle, providing all the following conditions are met:

All doors, tailgate and hood are closed
The BCM/GWM is not in transit mode.

When the vehicle has successfully completed its locking routine, confirmation will be given by a single short flash of the turn signal indicators to indicate a single locked condition.

If double locking is activated, then the confirmation will be given by:

A double flash of the turn signal indicators.
1 short flash for locked.
1 long flash on completion of double locked.

If 'audible lock warning' is enabled, an audible chirp shall also be emitted from the BBUS on double lock. This feature can be turned on and off in the Instrument Cluster (IC) security features menu.

Mislock

When a lock or double lock request is received from a smart key, the anti-theft alarm system remains disarmed if:

Any doors, tailgate or hood is open/ajar.
Ignition is On (Power Mode 6).

The Body Control Module/Gateway Module (BCM/GWM) generates a short mislock sound from the Battery Back-Up Sounder (BBUS) or passive sounder and the turn signal indicators will not flash. Each attempt to lock will be confirmed by an audible chime being emitted.

If the tailgate is opened via the smart key, the volumetric sensor and the tilt sensor in the BBUS are inhibited until the tailgate is closed.

Disarming

The Body Control Module/Gateway Module (BCM/GWM) will disarm the active anti-theft system to prevent false alarm activation under certain conditions as follows:

If the system is in perimeter with alarm sensing mode and the vehicle startup battery voltage decreases to less than 9V, the BCM/GWM will remain in perimeter mode only. This prevents false alarm activation because the volumetric sensor cannot operate correctly below 9V.
The BCM/GWM deactivates the Battery Back-Up Sounder (BBUS) if the startup battery voltage decreases from 9.5V to 9V in more than a 30 minute period. If required, the BCM/GWM will activate the horns to sound an audible alarm trigger warning. This prevents false alarm activation. At voltages below 9V, the BCM/GWM will not generate the 'heartbeat' signal to the BBUS. The BBUS interprets this as the BCM/GWM has been tampered with and activates its sounder. If the startup battery voltage subsequently rises to more than 9.5V, the BCM/GWM will re-arm the BBUS.
The vehicle automatically re-locks and re-arms the active anti-theft system when unlocking the vehicle and within 40 seconds a hinged panel is not opened. This prevents leaving the vehicle unlocked and disarmed by accidental operation of the smart key unlock switch/exterior handle.

Alarm

When the alarm is triggered, the Body Control Module/Gateway Module (BCM/GWM) activates audible and visual warnings. The audible warnings are produced by the passive sounder or the Battery Back-Up Sounder (BBUS) and horns (market dependent). Visible indications are produced using the turn signal indicators.

The BCM/GWM activates the security sounder or the BBUS and vehicle horns (market dependent) and the visual indications for 30/60 seconds, depending on the market. The activation is stopped for 10 seconds and, if the alarm trigger is still present, the BCM/GWM will cycle again for 30/60 seconds. This will be repeated for up to a maximum of 10 cycles per trigger source (3 cycles in certain markets) of 30/60 seconds for any 1 arming period.

The BCM/GWM ignores the trigger cause if:

The 10 cycles (3 cycles in certain markets) are completed and the alarm trigger is still present.
Or until the BCM/GWM receives a disarm signal.

NOTE: If the Battery Back-Up Sounder (BBUS) is triggered due to tamper detection, the visual indication using the turn signal indicators is not activated.

The alarm can be triggered by:

Any of the hinged panels being opened.
Any of the doors being unlocked.
The volumetric sensor detects a movement inside the vehicle.
The tilt sensor detects vehicle movement.
An ignition tamper is detected (invalid smart key).

Battery Back-Up Sounder

NOTE: If a Battery Back-Up Sounder (BBUS) is equipped, it is also armed with the perimeter mode lock request. However, the tilt functionality is not enabled in perimeter mode depending on market/single/double locking latches.

On receipt of the arming signals, the Battery Back-Up Sounder (BBUS) and the tilt sensor respond with a status message. If the Body Control Module/Gateway Module (BCM/GWM) does not receive the status signals within a period of time, the BCM/GWM assumes there is a fault in the system. The BCM/GWM responds with a disarm signal to either the BBUS and/or the tilt sensor and stores a related Diagnostic Trouble Code (DTC). If the BBUS is disarmed when the active anti-theft system is armed and the system is subsequently triggered, the BCM/GWM still energizes the horn relay and uses the horns to sound the audible warning in place of the BBUS.

When the BBUS is armed, the BCM/GWM sends a periodic (heartbeat) signal to the BBUS. The signal prompts the BBUS to monitor the startup battery supply and the Local Interconnect Network (LIN) bus link with the BCM/GWM.

The BBUS will operate in the following cases:

It receives an alarm signal from the BCM/GWM or the tilt sensor.
The power supply or the LIN bus link to the BCM/GWM is disrupted.

The tilt sensor measures the longitudinal and lateral angle of the vehicle over a range of ±16° from the horizontal. When the active anti-theft system is armed in perimeter with alarm sensing mode, the tilt sensor stores the current vehicle angles in its memory and monitors the tilt sensor readings. If the vehicle angle changes in either direction by more than the alarm limit threshold, the tilt sensor communicates to the BCM/GWM in order to activate the BBUS.

If the alarm system is active and the startup battery or the BBUS is disconnected, the BBUS continues to sound without the turn signal indicators flashing.

Panic Alarm

A panic alarm feature allows the vehicle alarm system to be activated using the smart key. The panic alarm switch, identified by a triangle symbol, can be operated and held for more than 3 seconds to activate the vehicle alarm.

To cancel the panic alarm feature perform one of the following:

Operate the panic alarm switch 3 times.
Press and hold the panic alarm switch for 3 seconds.
Operate the ignition switch.

To prevent accidental cancellation, the panic alarm cannot be cancelled within 5 seconds of being activated.

Smart key Additional Features

In addition to the lock and unlock switches, the smart key has convenience switches.

Headlamp Convenience

A headlamp convenience switch can be pressed to operate the headlamps to assist departure or approach to the vehicle. A single press of the switch will operate the headlamps for approximately 25 seconds, after which time they will automatically turn off. A second press of the switch will turn off the headlamps if the 25 second period has not been reached. Operating the ignition switch within the 25 second period will also turn off the headlamp convenience feature.

Convenience Mode

When the vehicle is unlocked using the unlock switch on the smart key, the vehicle's electrical system initiates convenience mode.

The following systems become active in convenience mode:

Memory - Seat adjustment and mirror position
Passenger compartment and exterior lighting
Audio system
Instrument Cluster (IC) message center
Horn
Cigar lighter/12V accessory socket.

Single Point Entry

The single point entry feature only unlocks the driver door, all other doors remain single locked. A single press of the unlock switch on the smart key will unlock only the driver door. A second press is required to unlock the remaining doors and the tailgate.

If the vehicle is double locked, the first press of the unlock switch on the smart key unlocks the driver door.

The remaining doors revert to the single locked state and can therefore be unlocked using the following:

A further press of the smart key unlock switch.
The Central Door Locking (CDL) lock/unlock switch on the driver door.
The passenger compartment door handles on the passenger doors.
Passive entry via any passenger door.

Access to the tailgate can be achieved via:

A further press of the smart key unlock switch.
The smart key tailgate open switch.
The tailgate open switch on the instrument panel.
The CDL lock/unlock switch on the driver door.
The passenger compartment door handles on the passenger doors.
Passive entry via any passenger door.
Passive entry via the tailgate open switch.

Changing from CDL to single point entry can be performed by:

Pressing the lock and unlock switches on the smart key simultaneously. The turn signal indicators will flash to confirm that the function change.
Using the Instrument Cluster (IC) menu.

Global Open/Close

NOTE: The global open/close feature is not available in all markets.

A global open and close feature can be operated from the smart key. This feature allows the windows to be opened/closed via a single press of the lock or unlock switch. The switch must be pressed and held for more than 2 seconds to activate the global open/close feature. The windows must be initialized for the global functionality to work.