Mercedes-Benz GLC Coupe 2016, Owner'S Manual

Page: 80 / 377

G
WARNING
PRE-SAFE
®
Brake does not react:
R
to small people, e.g. children
R
to animals
R
to oncoming vehicles
R
to crossing traffic
R
when cornering
As a result, PRE-SAFE ® Brake may neither
give warnings nor intervene in all critical sit-
uations. There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
In the event of snowfall or heavy rain, detection
can be impaired.
Detection by the radar sensor system is also
impaired in the following situations:
R
dirt on the sensors or obscured sensors
R
interference by other radar sources
R
strong radar reflections, for example, in multi-
storey car parks
R
a narrow vehicle travelling in front, e.g. a
motorcycle
R
a vehicle travelling in front on a different line
Detection by the camera system is also impaired
in the following situations:
R
dirt on the camera or obscured camera
R
glare on the camera system, e.g. from the sun
being low in the sky
R
darkness
R
if:
-
pedestrians move quickly, e.g. into the path
of the vehicle
-
the camera system no longer detects a
pedestrian as a person due to special cloth-
ing or other objects
-
a pedestrian is concealed by other objects
-
the typical outline of a pedestrian is not
distinguishable from the background
Following damage to the front end of the vehicle,
have the radar sensor settings and operation
checked at a qualified specialist workshop. This
also applies to collisions at low speeds where
there is no visible damage to the front of the
vehicle.
Following damage to the windscreen, have the
configuration and operation of the camera sys-
tem checked at a qualified specialist workshop.
Function
X
To activate/deactivate: activate or deacti-
vate PRE-SAFE ® Brake in the on-board com-
puter (
Y
page 233).
If the PRE-SAFE
®
Brake is not activated, the
æ symbol appears on the multifunction
display.
This function will issue a warning if:
R
at a speed of around 30 km/h or more, the
distance maintained to the vehicle travelling
in front is insufficient for several seconds
The · distance warning lamp will then
light up on the instrument cluster.
R
at a speed of around 7 km/h or more, you
rapidly approach a vehicle in front or a pedes-
trian
An intermittent warning tone will then sound
and the · distance warning lamp will light
up on the instrument cluster.
X
Brake immediately to rectify the situation.
or
X
Take evasive action provided it is safe to do
so.
The PRE-SAFE
®
Brake function can also brake
the vehicle automatically under the following
conditions:
R
the driver and front passenger have their seat
belts fastened
R
the vehicle speed is between approximately
7 km/h and 200 km/h
At speeds of up to approximately 70 km/h, PRE-
SAFE
®
Brake can also detect:
R
stationary objects in the path of your vehicle,
e.g. stopped or parked vehicles
R
pedestrians in the path of your vehicle
i
If an increased danger of collision exists,
preventative passenger protection measures
(PRE-SAFE
®
) are triggered (
Y
page 57).
If the danger of collision with the vehicle in front
remains and you do not brake, take evasive
action or accelerate quickly, the vehicle may
perform automatic emergency braking up to the
point of full brake application. Automatic full
brake application is not performed until imme-
diately prior to an imminent accident.
Driving safety systems
77
Safety
Z