User Manual - Page 78

For 2017 MODEL S.

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Warning: If Auto Lane Change cannot
detect the outside of the target lane
midway through the lane change, both
Auto Lane Change and Autosteer will
cancel. The instrument panel displays a
message instructing you to take over the
steering wheel immediately.
When Auto Lane Change is active, it is
important to monitor its performance by
watching the driving path in front of you and
the surrounding area. Stay prepared to take
over steering at any time. On the instrument
panel, the lane you are crossing over displays
as a dashed blue line and once in your new
lane, the lane markings display as solid blue
lines.
In situations where Auto Lane Change is
unable to operate at optimal performance, or
cannot operate due to inadequate data, the
instrument panel displays a series of warnings.
Therefore, when using Auto Lane Change,
always pay attention to the instrument panel
and be prepared to manually steer Model S.
Warning: When Auto Lane Change is
actively steering Model S, the steering
wheel moves accordingly. Any significant
restriction of the steering wheel's
movement can cancel Auto Lane Change.
Canceling Auto Lane Change
Auto Lane Change cancels when you manually
move the steering wheel, press the brake
pedal, or disengage the turn indicator before
Model S crosses the markers on the existing
lane.
To disable Auto Lane Change so it is no longer
available, touch Controls > Settings > Driver
Assistance > Auto Lane Change >
O.
Limitations
Auto Lane Change is particularly unlikely to
operate as intended in the following types of
situations:
Auto Lane Change is unable to accurately
determine lane markings. For example,
lane markings are excessively worn, have
been adjusted due to road construction,
are changing quickly (lanes branching
o,
crossing over, or merging), objects or
landscape features are casting strong
shadows on the lane markings, or the road
surface contains pavement seams or other
high-contrast lines.
A side collision warning is active (see
Lane
Assist on page 83) when you engage the
turn signal.
The road has sharp curves.
Visibility is poor (due to heavy rain, snow,
fog, etc.) or weather conditions are
interfering with sensor operation.
Bright light (oncoming headlights or
direct sunlight) is interfering with the
camera's view.
A sensor or the camera is damaged or
obstructed (such as by mud, fog, ice, or
snow).
The sensors are
aected by other
electrical equipment or devices that
generate ultrasonic waves.
Model S is being driven very close to a
vehicle in front of it, which is blocking the
camera's view.
Warning: Many unforeseen circumstances
can impair the operation of Auto Lane
Change. Always keep this in mind and
remember that as a result, Auto Lane
Change may not steer Model S
appropriately. Always drive attentively
and stay prepared to immediately take
action at any time.
Auto Lane Change
Driver Assistance 77
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