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204 Driving and parking
Ø White, red hands: "hands on the steering
wheel" prompt
%
During the transition from active to passive
status, the Ø symbol is shown as enlarged
and flashing. When the passive state is
reached, the symbol Ø is displayed in
gray.
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Depending on the selected vehicle settings,
Active Steering Assist may be unavailable.
Steering and touch detection
The driver is required to keep their hands on the
steering wheel at all times and be able to inter-
vene at any time to correct the course of the vehi-
cle and keep it in lane. The driver must expect a
change from active to passive mode or vice versa
at any time.
If the system detects that the driver has not
steered the vehicle for a considerable period of
time or has removed their hands from the steering
wheel, display
1
appears. If the driver still does
not steer the vehicle, a warning tone sounds in
addition to the visual warning message.
If the driver does not react to the warning for a
considerable period, the system can initiate an
emergency stop (
page 205).
/
The warning is not issued or is stopped when the
driver gives confirmation to the system:
The driver steers the vehicle.
R
Depending on the country: the driver presses
R
a steering wheel button or operates Touch
Control
If Active Steering Assist detects that a system
limit has been reached, a visual warning is issued
and a warning tone sounds.
Observe the notes on driving systems and your
responsibility; you may otherwise fail to recognize
dangers (
page 187).
/
System limits
Active Steering Assist has a limited steering tor-
que for lateral guidance. In some cases, the steer-
ing intervention is not sufficient to keep the vehi-
cle in the lane or to drive through exits.
The system may be impaired or may not function
in the following instances:
Visibility is poor, e.g. due to snow, rain, fog,
R
heavy spray, greatly varying ambient light or
strong shadows on the road.
There is glare, e.g. from oncoming traffic,
R
direct sunlight or reflections.
Insufficient road illumination.
R
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