Mercedes-Benz GLC : SmartKey / Activating/deactivating the panic alarm
Requirements:
- The ignition is switched off.

To activate: press button
for approximately one second.
A visual and audible alarm is triggered.
To deactivate: briefly press button
again.
or
Press the start/stop button on the cockpit, with the SmartKey inside the vehicle.
Possible unlocking functions of the SmartKey:
Central unlocking
Unlocking the driver's door and fuel filler flap
To switch between settings: press the
and
buttons simultaneously for
approximately six seconds until the indicator
lamp flashes twice...
Other information:
WARNING Risk of accident when the
center of gravity is too high
The vehicle may start to skid and rollover in
the event of sudden steering maneuvers
and/or when the vehicle's speed is not adapted
to the road conditions.
Always adapt your speed and driving style to the vehicle's driving characteristics and to the prevailing road and weather conditions...
WARNING Risk of accident due to
adjusting the vehicle settings while the
vehicle is in motion
You could lose control of the vehicle in the
following situations in particular:
If you adjust the driver's seat, the head
restraint, the steering wheel or the mirror
while the vehicle is in motion
If you fasten your seat belt while the vehi‐
cle is in motion
Before starting the
engine: In particular,
adjust the driver's seat, head restraint,
steering wheel and mirror, and fasten
your seat belt...