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:
Function of the tire pressure loss warning system
The tire pressure loss warning system warns the
driver by means of display messages when there
is a severe tire pressure loss.
System limits
The system may be impaired or may not function
particularly in the following situations:
Incorrectly set tire pressure
Sudden pressure loss caused, for example,
by a foreign object penetrating the tire
Steady pressure loss in several tires
The system has a restricted or delayed function
particularly in the following situations:
Poor ground conditions, e...
Read the tire pressure
recommended for the
current operating conditions from the Tire
and Loading Information placard or the tire
pressure table. Observe the notes on tire
pressure.
Remove the valve cap of the tire
to be
checked.
Press the tire pressure gauge
securely onto
the valve...