Mercedes-Benz GLC Owner's Manual page 91

Driving safety systems
88
With the help of the radar sensor system and
the camera system, PRE-SAFE
detect obstacles that are in front of your vehi-
cle for an extended period of time.
In addition, pedestrians in the path of your
vehicle can be detected.
®
PRE-SAFE Brake detects pedestrians using
typical characteristics such as the body con-
tours and posture of a person standing
upright.
i
Observe the restrictions described in the
"Important safety notes" section
( page 88).
Y
Important safety notes
G WARNING
®
PRE-SAFE Brake will initially brake your vehi-
cle by a partial application of the brakes if a
danger of collision is detected. There may be
a collision unless you brake yourself. Even
after subsequent full application of the brakes
a collision cannot always be avoided, partic-
ularly when approaching at too high a speed.
There is a risk of an accident.
Always apply the brakes yourself and try to
take evasive action, provided it is safe to do
so.
In the event of a partial application of the
brakes, the vehicle is braked with up to 50% of
the full braking pressure.
G WARNING
®
PRE-SAFE Brake cannot always clearly iden-
tify objects and complex traffic conditions.
In these cases, PRE-SAFE
give an unnecessary warning and then
R
brake the vehicle
neither give a warning nor intervene
R
There is a risk of an accident.
Always pay particular attention to the traffic
situation and be ready to brake, especially if
®
PRE-SAFE Brake warns you. Terminate the
intervention in a non-critical driving situation.
®
Brake can
®
Brake may:
G WARNING
®
PRE-SAFE Brake cannot always clearly iden-
tify people, especially if they are moving. In
these cases, PRE-SAFE
vene. There is a risk of an accident.
Always pay particular attention to the traffic
situation and be ready to brake, especially if
®
PRE-SAFE Brake warns you.
In order to maintain the appropriate distance
to the vehicle in front and thus prevent a col-
lision, you must apply the brakes yourself.
G WARNING
®
PRE-SAFE Brake does not react:
to small people, e.g. children
R
to animals
R
to oncoming vehicles
R
to crossing traffic
R
when cornering
R
As a result, PRE-SAFE
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, detec-
tion can be impaired.
Detection by the radar sensor system is also
impaired in the event of:
dirt on the sensors or obscured sensors
R
interference by other radar sources
R
strong radar reflections, for example, in
R
multi-storey car parks
a narrow vehicle travelling in front, e.g. a
R
motorcycle
a vehicle travelling in front on a different
R
line
Detection by the camera system is also
impaired in the event of:
dirt on the camera or if the camera is cov-
R
ered
glare on the camera system, e.g. from the
R
sun being low in the sky
®
Brake cannot inter-
®
Brake may neither