Mercedes-Benz GLC : Operating the combination switch for the lights / Adaptive Highbeam Assist
Adaptive Highbeam Assist function
WARNING Risk of accident despite
Adaptive Highbeam Assist
Adaptive Highbeam Assist does not react to:
- Road users without lights, e.g. pedestrians
- Road users with poor lighting, e.g.
cyclists
- Road users whose lighting is obstructed,
e.g. by a barrier
On very rare occasions, Adaptive Highbeam
Assist may fail to recognize other road users
with their own lighting, or may recognize
them too late.
In these, or in similar situations, the automatic
high beam will not be deactivated or
will be activated despite the presence of
other road users.
Always observe the road
and traffic
conditions carefully and switch off the
high beam in good time.
Adaptive Highbeam Assist cannot take into
account road, weather or traffic conditions.
Detection may be restricted in the following
cases:
- In poor visibility, e.g. fog, heavy rain or snow
- If there is dirt on the sensors or the sensors
are obscured
Adaptive Highbeam Assist is only an aid. You are
responsible for adjusting the vehicle's lighting to
the prevailing light, visibility and traffic conditions.

Adaptive Highbeam Assist automatically
switches between the following types of light:
At speeds greater than 19 mph (30 km/h):
- If no other road users are detected, the high
beam will switch on automatically.
The high beam will switch off automatically in
the following cases:
- At speeds below 16 mph (25 km/h)
- If other road users are detected
- If street lighting is sufficient
The system's optical sensor is located
behind the windshield near the overhead
control panel.
Switching Adaptive Highbeam Assist on/off
Switching on
Turn the light switch to the
position.
Switch on the high beam using the
combination
switch.
If Adaptive Highbeam Assist is activated,
the
indicator lamp will light
up on the
multifunction display.
Switching off
Switch off the high beam using
the combination
switch.
Cornering light function
The cornering light improves the illumination of
the road over a wide angle in the turning direction,
enabling better visibility on tight curves, for
example...
Switching the daytime running lamps on/off.
Multimedia system:
Settings
Light
Daytime Run. Lights
Switch the function on or off.
Setting the exterior lighting switch-off delay time
Requirements:
The light switch is in the
position...
Other information:
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.
Activate the SmartKey functions.
Check the battery using the
indicator lamp...
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...