Mercedes-Benz GLC Owner's Manual page 86

Function
The distance warning function issues a warn-
ing at speeds:
of approximately 30 km/h or more, if, over
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several seconds, the distance maintained
to the vehicle travelling in front is insuffi-
cient. The · distance warning lamp
then lights up in the instrument cluster.
of approximately 7 km/h or more, if you
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rapidly approach a vehicle in front. An inter-
mittent warning tone will then sound, and
the · distance warning lamp will light
up in the instrument cluster.
Brake immediately in order to increase the
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distance from the vehicle in front.
or
Take evasive action provided it is safe to do
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so.
Due to the nature of the system, particularly
complicated but non-critical driving condi-
tions may also cause the system to display a
warning.
With the help of the radar sensor system, the
distance warning function can detect obsta-
cles that are in the path of your vehicle for an
extended period of time.
Up to a speed of approximately 70 km/h, the
distance warning function can also react to
stationary obstacles, such as stopped or
parked vehicles.
Autonomous braking function
If the driver does not react to the distance
warning signal in a critical situation, COLLI-
SION PREVENTION ASSIST PLUS can assist
with the autonomous braking function.
The autonomous braking function:
gives the driver more time to react to criti-
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cal driving situations
can help the driver to avoid an accident or
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reduces the effects of an accident
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Driving safety systems
Vehicles without DISTRONIC PLUS: the
autonomous braking function is available in
the following speed ranges:
7 - 105 km/h for moving objects
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7 - 50 km/h for stationary objects
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Vehicles with DISTRONIC PLUS: the auton-
omous braking function is available in the fol-
lowing speed ranges:
7 - 200 km/h for moving objects
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7 - 50 km/h for stationary objects
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Due to the nature of the system, complicated
but non-critical driving conditions may also
cause the Autonomous Braking function to
intervene.
If the autonomous braking function demands
particularly high braking force, preventative
passenger protection measures (PRE-SAFE
are activated simultaneously (
Adaptive Brake Assist
General notes
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Observe the "Important safety notes" sec-
tion ( page 78).
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With the help of Adaptive Brake Assist, the
distance warning signal can detect obstacles
that are in the path of your vehicle for an
extended period of time.
If Adaptive Brake Assist detects a risk of a
collision with the vehicle in front, it calculates
the braking force necessary to avoid a colli-
sion. If you apply the brakes forcefully, Adap-
tive Brake Assist will automatically increase
the braking force to a level suitable for the
traffic conditions.
Adaptive Brake Assist provides braking assis-
tance in hazardous situations at speeds
above 7 km/h. It uses radar sensor technol-
ogy to assess the traffic situation.
Up to a speed of approximately 250 km/h,
Adaptive Brake Assist is capable of reacting
to moving objects that have already been
detected as such at least once over the period
of observation.
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®
)
page 63).
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