Arming and disarming the alarm

The alarm is armed when the vehicle is locked.

Arming the alarm

Lock and arm the vehicle by
  • pressing the lock button on the remote key P5-1507 Remote key icon for lock/global close.
  • touch the marked surface on the outside of the door handle or the rubberized pressure plate on the tailgate1.

If the vehicle is equipped with both keyless locking/unlocking* and power tailgate*, the button P5-1507 Power Operated Tailgate - close and lock button on the lower edge of the tailgate can also be used to lock and arm the vehicle.

16w17 - SPA - S/V90 - Security LED (Larmindikator)
A red LED light on the dashboard will flash every other second when the vehicle is locked and the alarm is armed.

Disarming the alarm

Unlock and disarm the vehicle alarm by
  • pressing the unlock button on the remote key P5-1646-x90-Remote key icon for unlocking.
  • grip a door handle or lightly press the tailgate's rubberized button1.

Disarming the alarm without a functioning remote key

The vehicle can be unlocked and disarmed even if the remote key is not functioning, e.g. if the battery is discharged.

Open the driver's door using the detachable key blade.
This will trigger the alarm.
P6-1746-XC40- Backup start place in tunnel console

Place the remote key on the key symbol in the backup reader in the tunnel console's storage compartment.

Press the start button.

The alarm will be disarmed.

Turning off a triggered alarm

Press the unlock button on the remote key or set the vehicle to ignition mode I by pressing the start button.

Automatically arming and disarming the alarm

Automatically arming the alarm helps prevent inadvertently leaving the vehicle without alarm protection.

If the vehicle is unlocked using the remote key (and the alarm is disarmed) but none of the doors or tailgate are opened within two minutes, the alarm will be automatically rearmed. The vehicle will also re-lock.

On some markets, the alarm will be automatically armed following a slight delay after the driver's door has been opened and closed without being locked.

To change this setting:
Tap Settings in the center display's Top view.
Tap My CarLocking.
Select Passive Arming Deactivation to temporarily deactivate the function.
  1. * Option/accessory.
  2. 1 Vehicles with keyless locking and unlocking*.