Mercedes-Benz GLC : Anti-theft protection / ATA (anti-theft alarm system)
Function of the ATA system
If the ATA system is armed, a visual and audible
alarm is triggered in the following situations:
- When a door is opened
- When the tailgate is opened
- When the hood is opened
- When the interior motion sensor is triggered
- When the tow-away alarm is triggered
The ATA system is armed automatically after
approximately ten seconds in the following situations:
- After locking the vehicle with the SmartKey
- After locking the vehicle using KEYLESS-GO

Indicator lamp
flashes when the
ATA system
is armed.
The ATA system is deactivated automatically in
the following situations:
- After unlocking the vehicle with the Smart‐
Key
- After unlocking the vehicle using KEYLESS-GO
- After pressing the start/stop button with the
SmartKey in the storage compartment
When the Mercedes‑Benz emergency call
system is active and the alarm stays on for
more than 30 seconds, a message is automatically
sent to the Customer Assistance
Center.
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
,
or
button on the
SmartKey.
or
Press the start/stop button with
the Smart-Key in the stowage compartment
Deactivating the alarm using KEYLESS-GO
Grasp the outside door handle
with the
SmartKey outside the vehicle.
The immobilizer prevents your vehicle from being
started without the correct SmartKey.
The immobilizer is automatically activated when
the ignition is switched off and deactivated when
the ignition is switched on...
This function may not be available in all
countries.
An audible and visual alarm is triggered if an
alteration to your vehicle's angle of inclination is
detected while the tow-away alarm is armed...
Other information:
When you log in with a user account to the
Mercedes me Portal, then services and offers
from Mercedes-Benz will be available to you.
For more information consult an authorized
Mercedes-Benz Center or visit the Mercedes me
portal:
https://me.secure...
The surround view camera is a system that consists
of four cameras. The cameras cover the
immediate vehicle surroundings. The system
assists you when you are parking or at exits with
reduced visibility, for example.
The views of the surround view camera are
always available when driving forwards up to a
speed of approx...