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Instruments and warning/control lamps
Driver alert system (break recom-
mendation)*
Fig. 55
On the instrument panel display: driver
al
ert syst
em symbol.
The Fatigue detection informs the driver when
their driving behaviour sho
ws signs of f
atigue.
Function and operation
Fatigue detection determines the driving be-
haviour of the driver when starting a journey,
making a calculation of tiredness. This is con-
stantly compared with the current driving be-
haviour. If the system detects that the driver is
tired, an audible warning is given with a
sound and an optic warning is shown with a
symbol and complementary message on the
instrument panel display
›››
Fig. 55. The mes-
sage on the instrument panel display is
shown for approximately 5 seconds, and de-
pending on the case, is repeated. The system
stores the last message displayed.
The message on the instrument panel display
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 peri-
od of time (below 65 km/h, 40 mph) the sys-
tem automatically re-establishes the tired-
ness calculation. When driving at a faster
speed the driving behaviour will be recalcula-
ted.
WARNING
Do not let the comfort afforded by the Fati-
gue detection syst
em 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.
»
73
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