Mercedes-Benz GLC : Head restraints / Adjusting the head restraints of the rear seats mechanically

To raise: pull the head
restraint up.
To lower: press release
knob
in the direction
of the arrow and push the head restraint
down.
WARNING Risk of accident due to
adjusting 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
restraints, the steering wheel or the mirror
while the vehicle is in motion...
Removing
Release the rear seat backrest
and fold it forwards
slightly.
Pull the head restraint upwards
as far as it
will go.
Push release knob
in the direction of the
arrow and pull out the head restraint...
Other information:
Activate Active Distance Assist DISTRONIC
and remove your foot from the brake pedal.
Select
with the left rocker switch.
or
Depress the accelerator
pedal briefly and
firmly.
The functions of Active Distance Assist
DISTRONIC continue to be carried out...
Some systems will perform a self-test when the
ignition is switched on. Some indicator and
warning lamps may briefly light up or flash. This
behavior is non-critical. These indicator and
warning lamps indicate a malfunction only if they
light up or flash after the engine has been started
or during a journey...