Mercedes-Benz GLC : Doors / Activating/deactivating the automatic locking feature
The vehicle is locked automatically when the
ignition is switched on and the wheels are turning
faster than walking pace.

To activate: press and
hold button
for
approximately five seconds until an acoustic
signal sounds.
To deactivate: press and
hold button
for
approximately five seconds until an acoustic
signal sounds.
In the following situations, there is a danger of
being locked out when the function is activated:
- While the vehicle is being tow started/
pushed.
- If the vehicle is being tested on a roller dynamometer.
You can no longer lock or unlock the vehicle
using KEYLESS-GO
Possible causes:
The SmartKey functions have been deactivated.
The SmartKey battery is weak or discharged...
If you wish to lock the vehicle entirely using
the emergency key, first press the button for
locking from the inside while the driver's
door is open...
Other information:
If a collision is detected when the tow-away
alarm is armed on a locked vehicle, you will
receive a notification in the multimedia system
when you switch on the ignition.
You will receive information about the following
points:
The area of the vehicle that may have been
damaged...
NOTE Mercedes-AMG vehicles
Observe the notes in the
Supplement.
You could otherwise fail to recognize
dangers.
WARNING Risk of accident due to incorrect
dimensions of wheels and tires
If wheels and tires of the wrong size are
installed, the wheel brakes or wheel suspension
components may be damaged...