Volvo S80 Owner's Manual page 84

When the alarm is connected, it continually monitors all alarm points. The
alarm is triggered if:
· the bonnet is opened.
· the boot lid is opened.
· a side door is opened.
· the ignition switch is turned with a non-approved key or subjected to
force.
· a movement is detected in the passenger compartment (if a movement
detector is installed - extra equipment).
· the car is lifted or towed away (if it is equipped with a tilt detector -
extra equipment).
· the battery cable is disconnected.
· anyone tries to disconnect the siren.
Press the LOCK button on the remote control. A long flash signal from
the car's direction indicators confirms that the alarm is active and that all
doors are closed. In certain markets the key or the switch in the driver's
door can be used to alarm the car.
In certain countries (Belgium, Israel etc.) the alarm is automatically armed
after a slight delay if the driver's door is opened and closed but the car is
not locked.
Press the UNLOCK button on the remote control. Two short flash
signals from the direction indicators of the car confirm that the alarm is
deactivated. In certain markets, the key can be used to deactivate the
alarm.
Press the UNLOCK button on the remote control if the alarm sounds and
you wish to deactivate it. Two short flashes of the direction indicators are
given as confirmation.
The audio signal is given from a siren with a reserve battery. Each alarm
signal lasts 25 seconds.
If the alarm is triggered, all direction indicators flash for 5 minutes or until
you deactivate the alarm as described above.
If neither the side doors or rear door are opened within two minutes of
the alarm being disarmed, and the car is unlocked with the remote
control, the car automatically rearms the alarm. The car is simultaneously
locked. This function prevents you from accidentally leaving the car
unalarmed.
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