Mercedes-Benz CLA Operator's Manual page 74

Protection against theft
72
To stop the alarm using KEYLESS-GO:
X
grasp the outside door handle. The Smart-
Key must be outside the vehicle.
The alarm is switched off.
or
Press the Start/Stop button on the dash-
X
board. The SmartKey must be inside the
vehicle.
The alarm is switched off.
The alarm is not switched off, even if you
close the open door that triggered it, for
example.
i If the alarm continues for more than
30 seconds, the mbrace emergency call
system automatically notifies the Cus-
tomer Assistance Center. This is done
either by text message or data connection.
The emergency call system sends the mes-
sage or data provided that:
you have subscribed to the mbrace ser-
R
vice.
the mbrace service has been activated
R
properly.
the necessary mobile phone network is
R
available.