Instruments and warning/control lamps
and depending on the case, is repeated. The
system stores the last message displayed.
The message on the instrument panel dis-
play can be switched off by pressing the
button on the multi-function steering wheel
›››
page 80.
The message can be recalled to the instru-
ment panel display using the multifunction
display
›››
page 71 .
Conditions of operation
Driving behaviour is only calculated on
speeds above about 65 km/h (40 mph) up to
around 200 km/h (125 mph).
Switching on and off
Fatigue detection can be activated or deacti-
vated in the infotainment system using the
function button
> Driver assistance >
Driver Alert System
›››
page 88 . A mark in-
dicates that the adjustment has been activa-
ted.
System limitations
The Fatigue detection has certain limitations
inherent to the system. The following condi-
tions can limit the Fatigue detection or pre-
vent it from functioning.
●
At speeds below 65 km/h (40 mph)
●
At speeds above 200 km/h (125 mph)
●
When cornering
●
On roads in poor condition
●
In unfavourable weather conditions
●
When a sporty driving style is employed
●
In the event of a serious distraction to the
driver
Fatigue detection will be restored when the
vehicle is stopped for more than 15 minutes,
when the ignition is switched off or when the
driver has unbuckled their seat belt and
opened the door.
In the event of slow driving during a long pe-
riod of time (below 65 km/h, 40 mph) the
system automatically re-establishes the
tiredness calculation. When driving at a fast-
er speed the driving behaviour will be recal-
culated.
WARNING
Do not let the comfort afforded by the Fati-
gue detection system tempt you into taking
any risks when driving. Take regular breaks,
sufficient in length when making long jour-
neys.
●
The driver always assumes the responsi-
bility of driving to their full capacity.
●
Never drive if you are tired.
●
The system does not detect the tiredness
of the driver in all circumstances. Consult
the information in the section
›››
page 73,
System limitations.
●
In some situations, the system may incor-
rectly interpret an intended driving ma-
noeuvre as driver tiredness.
●
No warning is given in the event of the ef-
fect called microsleep!
●
Please observe the indications on the in-
strument panel and act as is necessary.
Note
●
Fatigue detection has been developed for
driving on motorways and well paved roads
only.
●
If there is a fault in the system, have it
checked by a specialised workshop.
73
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