SMART fortwo coupe Owner's Manual page 54

Driving safely
52
prepares the vehicle for a possible emer-
gency braking manoeuvre.
In particularly critical situations Active
Brake Assist may brake autonomously. In
this case, Active Brake Assist continues to
alert the driver both visually and acousti-
cally.
Please note
G
WARNING
Active Brake Assist cannot always clearly
identify objects and complex traffic situa-
tions.
In these cases, Active Brake Assist may:
warn or brake for no reason
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not issue a warning
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not brake
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There is a risk of an accident.
Always pay careful attention to the traffic
situation and do not rely on Active Brake
Assist alone. Be prepared to brake or
manoeuvre if necessary.
G
WARNING
Active Brake Assist does not react:
to persons, bicycles, motorcycles or ani-
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mals
to approaching vehicles
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to cross traffic
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on bends
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As a result, Active Brake Assist cannot
intervene in all critical situations. There is
a risk of an accident.
Always pay careful attention to the traffic
situation and be prepared to brake.
G
WARNING
Severe jolting, for example in the case of a
collision, may cause the radar sensors to
be misaligned. The function of Active Brake
Assist is then impaired.
There is a risk of an accident.
Deactivate Active Brake Assist. Have Active
Brake Assist checked at a qualified spe-
cialist workshop.
The following requirements must also be ful-
filled:
the selector lever is in position 7.
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the parking brake is released.
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the driving speed is within the suitable
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speed range.
Detection can be restricted under the follow-
ing conditions:
the vehicle is new or service work has been
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carried out on the system. In this case,
observe the information on running-in the
vehicle
the radio sensors are dirty or covered
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( page 160)
in heavy rain or snow
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there is interference from other radar
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sources, e.g. in multi-storey car parks
the vehicle travelling in front is narrow,
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e.g. a motorcycle
the vehicle travelling in front is travelling
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on a different line
Autonomous braking can be cancelled by
briefly depressing the accelerator pedal.
If the brake lamps are inoperative, deacti-
vate Active Brake Assist.
i
Observe the notes on "Limitations of the
driving safety systems" (
Distance warning and forward collision
warning with autonomous braking func-
tion
Method of operation
If the distance maintained to the vehicle
ahead is insufficient for the speed you are
driving at, the · warning lamp lights up.
If Active Brake Assist detects a risk of colli-
sion while driving, the · warning lamp
lights up and a warning tone sounds. If the
driver depresses the brake pedal fast, the
braking pressure may be increased to a full
brake application.
The autonomous braking function may inter-
vene if the driver does not react to the
forward collision warning.
Y
page 51).