Anti-Theft Protection - Mercedes-Benz GLS Owner's Manual

104 Opening and closing

Anti-theft protection

Function of the immobiliser
The immobiliser prevents your vehicle from
being started without the correct key.
The immobiliser is automatically activated when
the ignition is switched off and deactivated when
the ignition is switched on.
ATA (Anti-Theft Alarm system)
Function of the ATA system
If the ATA system is primed, a visual and audible
alarm is triggered in the following situations:
when a door is opened
R
when the tailgate is opened
R
when the bonnet is opened
R
when interior protection is triggered
R
( page 105)
/
when tow-away protection is triggered
R
( page 105)
/
The ATA system is primed automatically after
approximately ten seconds in the following situa‐
tions:
after locking the vehicle with the key
R
after locking the vehicle using KEYLESS-GO
R
Indicator lamp 1 flashes when the ATA system
is primed.
The ATA system is deactivated automatically in
the following situations:
after unlocking the vehicle with the key
R
after unlocking the vehicle using KEYLESS-
R
GO
after pressing the start/stop button with the
R
key in the stowage compartment
( page 192)
/
% When the Mercedes‑Benz emergency call
system is active and the alarm stays on for
more than 30 seconds, a message is auto‐
matically sent to the Customer Assistance
Centre ( page 354).
/
Deactivating the ATA
Press the Ü, ß or p button on the
#
key.
or
Press the start/stop button with the key in
#
the stowage compartment (
Deactivating the alarm using KEYLESS-GO
Grasp the outside door handle with the key
#
outside the vehicle.
page 192)
/