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212 Driving and parking
Ø Red, flashing: prompt to the driver to
actively confirm or transition from active
to passive status, system limit detected
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During the transition from active to passive
status, the Ø symbol is shown as
enlarged and flashing. Once the system is
passive, the Ø symbol is shown as grey in
the driver display.
Contact 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
vehicle 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 steer‐
ing wheel, an optical warning is given first. Dis‐
play message
1
appears in the driver display. If
the driver still does not steer the vehicle, or
gives no confirmation to the system, a warning
tone sounds in addition to the visual warning
message.
If the driver does not react to this warning for a
considerable period, an emergency stop is initi‐
ated (
page 213).
/
The warning is not issued or is stopped as soon
as the system detects that the driver has
touched the steering wheel.
Touch detection may be limited or inoperative in
the following situations:
The driver is wearing gloves.
R
There is a steering wheel cover on the steer‐
R
ing wheel.
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 recog‐
nise dangers (
page 192).
/
System limits
Active Steering Assist has a limited steering tor‐
que for lateral guidance. In some cases, the
steering intervention is not sufficient to keep the
vehicle in the lane.
The system may be impaired or may not function
in the following instances:
There is poor visibility, e.g. due to snow, rain,
R
fog, heavy spray, greatly varying light condi‐
tions or strong shadows on the carriageway.
There is glare, e.g. from oncoming traffic,
R
direct sunlight or reflections.
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