Safety information
Warning
The system cannot serve as a substitute
for the driver’s personal judgment in as-
sessing one's physical state. An increasing
lack of alertness or fatigue may not be de-
tected or not be detected in time. There is
a risk of accident, injury, or property dam-
age. Make sure that the driver is rested
and alert. Adjust driving style to traffic
conditions.
Break recommendation
Function
After starting a journey, the break recom-
mendation function is trained to the driver,
enabling it to detect decreasing alertness or
fatigue.
This process takes the following criteria
into account:
– Personal driving style, e.g., steering be-
havior.
– Driving conditions, e.g., the time or du-
ration of the drive.
This function activates at speeds greater
than approx. 43 mph/70 km/h and can also
display a break recommendation.
Setting break recommendation
The Distraction Warning from the Fatigue
Alert system can be turned on or off or con-
figured.
1. Go through the menu as follows:
Apps menu / "Vehicle" / "Driving
settings" / "Driver Assistance" / "Safety
and warnings" / "Fatigue Alert".
2. Select the desired setting.
Despite this function being off, some driver
assistance systems may issue break recom-
mendations.
Display
If the Fatigue Alert system detects that
the driver is paying less attention or has
become fatigued, a message is displayed on
the Interaction Unit recommending that the
driver take a break.
During the display, various settings can be
selected.
The system is reset approx. 45 minutes af-
ter parking the vehicle. A break recommen-
dation can only be displayed again after this
time has elapsed.
System limits
The Fatigue Alert system may be limited.
If the system is limited, either no warning
may be issued or an unwarranted warning
may be issued.
The break recommendation function may be
limited in the following situations:
– If the time is set incorrectly.
– At a predominantly driven speed below
approx. 43 mph/70 km/h.
– With a sporty driving style such as dur-
ing rapid acceleration or when corner-
ing fast.
– In active driving situations such as
when changing lanes frequently.
– When the road condition is poor.
– In the event of strong side winds.
Seite 192
CONTROLS Safety
192
Online Edition for Part no. 01405B37A59 - II/24
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