Mercedes-Benz GLC : Doors / Locking/unlocking the driver's door with the emergency key
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. Then proceed to lock the driver's
door using the emergency key.

Remove the emergency key.
Insert the emergency key as far
as it will go
into opening
in the cover.
Pull and hold the door handle.
Pull the cover on the emergency
key as
straight as possible away from the vehicle
until it releases.
Release the door handle.

To unlock: turn the
emergency key counterclockwise
to position
.
To lock: turn the
emergency key clockwise to
position
.
Carefully press the cover onto
the lock cylinder
until it engages and is seated firmly.
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...
Other information:
Seat belt adjustment function
Vehicles with PRE-SAFE®: After a front seat
belt has been fastened, the automatic seat belt
adjustment may apply a certain tightening force.
Do not hold the seat belt tightly while it is
adjusting.
You can activate and deactivate the seat belt
adjustment function using the multimedia system...
Check if the battery is
sufficiently charged. If
necessary, start the engine.
Pull switch 1 briefly.
Indicator lamp 2 goes out.
The vehicle will be raised to the currently
selected level.
The vehicle is automatically set to the level
of the most recently active drive program if
you drive at speeds greater than 1...