Mercedes-Benz GLE Operator's Manual page 206

204 Driving and parking
If the driver does not react to this warning for a
considerable period, an emergency stop is initi‐
ated ( page 206).
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The warning is not issued or is stopped when the
driver gives confirmation to the system:
The driver steers the vehicle.
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The driver presses a steering wheel button or
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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 recog‐
nize dangers ( page 181).
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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 or to drive through exits.
The system may be impaired or may not function
in the following instances:
There is poor visibility, e.g. due to snow, rain,
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fog, heavy spray, greatly varying ambient
light or strong shadows on the road.
There is glare, e.g. from oncoming traffic,
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direct sunlight or reflections.
Insufficient road illumination.
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The windshield is dirty, fogged up, damaged
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or covered in the vicinity of the camera, e.g.
by a sticker.
No, or several, unclear lane markings are
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present for one lane, or the markings change
quickly, for example, in a construction area
or intersections.
The lane markings are worn away, dark or
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covered up, e.g. by dirt or snow.
If the distance to the vehicle in front is too
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short and thus the lane markings cannot be
detected.
The road is narrow and winding.
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There are obstacles on the lane or projecting
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out into the lane, such as object markers.
The system does not provide assistance in the
following conditions:
On tight curves and when turning.
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When crossing intersections.
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At roundabouts or toll stations.
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When towing a trailer.
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When the tire pressure is too low.
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& WARNING Risk of accident if Active
Steering Assist unexpectedly stops func‐
tioning
If the system limits of Active Steering Assist
are reached there is no guarantee that the
system will remain active or will keep the
vehicle in lane.
Always keep your hands on the steering
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wheel and observe the traffic carefully.
Always steer the vehicle paying atten‐
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tion to traffic conditions.