Attentiveness Assistant
Principle
The Attentiveness Assistant can detect decreas‐
ing attentiveness or the onset of fatigue in the
driver on long monotonous journeys, for example
on motorways. The system recommends taking
a break.
Safety note
WARNING
The system does not relieve you of your per‐
sonal responsibility to assess your physical
condition correctly. Increasing inattention or fa‐
tigue might not be detected, or may not be de‐
tected in good time. There is a risk of accident.
Make sure that the driver is rested and alert.
Adapt your driving style to the traffic conditions.
Function
The system is switched on every time drive-
ready state is switched on.
After the start of a journey, the system adapts to
the driver so that any decrease in attention or fa‐
tigue can be detected.
This process considers the following criteria:
▷ Personal driving style, for example steering.
▷ Driving conditions, for example time of day,
duration of journey.
▷ Depending on the vehicle equipment: atten‐
tiveness of the driver through the Driver At‐
tention Camera.
The system is active from approx. 70 km/h,
43 mph and can also display a recommendation
to take a break.
Break recommendations
Adjusting
The Attentiveness Assistant is automatically ac‐
tive every time drive-ready state is switched on
and can therefore display break recommenda‐
tions.
Break recommendations can also be switched
on or off and adjusted via iDrive.
1. Press the button.
2. "Safety and warnings"
3. "Driver assistance"
4. "Attentiveness Assistant"
5. Select the desired setting.
Display
If the driver shows signs of decreasing attentive‐
ness or of fatigue, a note is shown on the control
display with the recommendation to take a break.
The following settings can be selected during
the display.
After a break, another break recommendation
cannot be displayed until after approximately
45 minutes at the earliest.
System limits
The system may have restricted functionality, or
give no warning at all, in situations such as the
following:
▷ If the time is set incorrectly.
▷ When the speed is predominantly below ap‐
prox. 70 km/h, 43 mph.
▷ If a sporty driving style is adopted, for exam‐
ple sharp acceleration or fast cornering.
▷ In active driving situations, for example fre‐
quent lane changes.
▷ In poor road condition.
▷ In strong crosswinds.
Seite 221
Safety
CONTROLS
221
Online Edition for Part no. 01405A38CB9 - VI/21
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