Active Brake Assist - Mercedes-Benz GLE COUPE Operator's Manual

Driving safety systems
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Active Brake Assist

General information
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Observe the "Important safety notes" sec-
tion ( page 60).
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Active Brake Assist consists of a distance warn-
ing function with an autonomous braking func-
tion and Adaptive Brake Assist.
Active Brake Assist can help you to minimize the
risk of a collision with the vehicle traveling in
front or reduce the effects of such a collision.
If Active Brake Assist detects that there is a risk
of collision, you will be warned visually and
acoustically. If you do not react to the visual and
audible collision warning, autonomous braking
can be initiated in critical situations. If you apply
the brake yourself in a critical situation, Adap-
tive Brake Assist of the Active Brake Assist sys-
tem supports you.
Important safety notes
In particular, the detection of obstacles can be
impaired if:
there is dirt on the sensors or anything else
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covering the sensors
there is snow or heavy rain
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there is interference by other radar sources
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there are strong radar reflections, for exam-
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ple in parking garages
a narrow vehicle is traveling in front, e.g. a
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motorbike
a vehicle is traveling in front on a different line
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new vehicles or after servicing is carried out
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on the Active Brake Assist system
Observe the notes in the section on breaking-
in ( page 124).
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Following damage to the front end of the vehicle,
have the configuration and operation of the
radar sensor checked at a qualified specialist
workshop. This also applies to collisions at slow
speeds where there is no visible damage to the
front of the vehicle.
Activating/deactivating
Active Brake Assist is automatically active after
switching on the ignition.
You can activate or deactivate Active Brake
Assist ( page 214) in the on-board computer.
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When deactivated, the distance warning func-
tion and the autonomous braking function are
also deactivated.
If Active Brake Assist is deactivated, the æ
symbol appears in the assistance graphic dis-
play.
If DSR ( page 168) is activated, Active Brake
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Assist is deactivated.
Distance warning function
General information
The distance warning function can help you to
minimize the risk of a front-end collision with a
vehicle ahead or reduce the effects of such a
collision. If the distance warning function
detects that there is a risk of a collision, you will
be warned visually and acoustically.
Important safety notes
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Observe the "Important safety notes" sec-
tion for driving safety systems (
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WARNING
The distance warning function does not react:
to people or animals
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to oncoming vehicles
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to crossing traffic
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when cornering
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Thus, the distance warning function cannot
provide a warning in all critical situations.
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
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WARNING
The distance warning function cannot always
clearly identify objects and complex traffic
situations.
In such cases, the distance warning function
may:
give an unnecessary warning
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not give a warning
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There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and do not rely solely on the distance
warning function.
page 60).
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