Aston Martin DB11 Owner's Handbook Manual page 41

Alarm
When the alarm has started a siren will be heard for a 25 seconds
cycle (ten cycles maximum) and the direction indicators flash
five minutes after which the security system returns to the armed
state.
The doors and deck lid will stay locked throughout.
Stop the alarm at any time by pressing
open a vehicle door with keyless entry active. There is
approximately a ten second delay before the alarm is stopped.
Engine Immobilizer
The engine immobilizer prevents your vehicle from being started
without the correct key.
The immobilizer system is activated when the ignition is set to off
and the driver's door is opened.
Caution: Always take the key with you when you lock the
vehicle. The engine can be started if a valid key has been left
inside the vehicle.
Markets where visible alarm signals and audible sirens are permitted.
1.
Interior Motion Sensor
When the vehicle is locked and armed, the interior motion sensor
for will sense movement inside the vehicle. If movement is detected
1
it will start the alarm.
The interior motion sensor will activate 10 seconds after the
vehicle is locked and all doors and the deck lid are closed, and
the alarm will be set after a further 10 seconds of calibration.
on the vehicle key or
All doors must be closed before the interior motion sensor
can be activated.
The interior motion sensor can be set on or off in the vehicle
settings menu (Refer to 'Vehicle Settings', page 10.2).
Tow Away Protection
When the vehicle is locked and armed a tilt sensor will sense if
the vehicle is tilted or lifted. For example, if the vehicle is being
raised on a jack or being towed. If the vehicle tilt sensor detects
a tilt, the alarm will start.
Tow Away Protection will activate 60 seconds after the
vehicle is locked and all doors are closed.
All doors, including the deck lid, must be closed before tow
away protection can be activated.
Tow away protection can be set to on or off in the vehicle settings
menu (Refer to 'Vehicle Settings', page 10.2).
2.15
Vehicle Security