Mercedes-Benz A-Class 2020 Operator's Manual page 82

80
Opening and closing
when the tailgate is opened
R
when the hood is opened
R
when the interior motion sensor is triggered
R
( page 81)
/
when the tow-away alarm is triggered
R
( page 81)
/
The ATA system is armed automatically after
approximately ten seconds in the following situa‐
tions:
after locking the vehicle with the SmartKey
R
after locking the vehicle using KEYLESS-GO
R
Indicator lamp 1 flashes when the ATA system
is armed.
The ATA system is deactivated automatically in
the following situations:
after unlocking the vehicle with the SmartKey
R
after unlocking the vehicle using KEYLESS-
R
GO
after pressing the start/stop button with the
R
SmartKey in the stowage compartment
( page 132)
/
%
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
Center ( page 245).
/
% In the case of severe battery discharging,
the anti-theft alarm system is automatically
deactivated to facilitate the next engine
start.
Deactivating the ATA
Press the Ü or ß button on the Smart‐
#
Key.
or
Press the start/stop button with the Smart‐
#
Key in the stowage compartment
( page 132)
/
Deactivating the alarm using KEYLESS-GO:
Grasp the outside door handle with the
#
SmartKey outside the vehicle.