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Restricted Speed
Autosteer is intended for use on freeways and
highways where access is limited by entry and
exit ramps. When using Autosteer on
residential roads, a road without a center
divider, or a road where access is not limited,
Autosteer limits the driving speed. The
maximum driving speed is calculated based
on the detected speed limit plus 5 mph
(10 km/h). In situations where the speed limit
cannot be detected, speed is limited to
45 mph (70 km/h). When Autosteer is
engaged in these situations, it reduces your
driving speed and your set speed to be within
these limits. You can manually accelerate to
exceed the limited speed, but when you
release the accelerator pedal, Autosteer slows
Model S to the limited speed. When you leave
the road, or disengage Autosteer by using the
steering wheel, you can increase your set
speed again, if desired.
Hold Steering Wheel
Autosteer uses data from the camera, sensors,
and GPS to determine how best to steer
Model S. When active, Autosteer requires you
to hold the steering wheel. If it does not
detect your hands on the steering wheel for a
period of time, a
flashing white light appears
around the instrument panel and the following
message is displayed on the instrument panel:
Autosteer detects your hands by recognizing
light resistance as the steering wheel turns or
from you manually turning the steering wheel
very lightly (i.e., without enough force to
retake control). When your hands are
detected, the message disappears and
Autosteer resumes normal operation.
Note: Autosteer may also sound a chime at
the same time that the message is initially
displayed.
Autosteer requires that you pay attention to
your surroundings and remain prepared to
take control at any time. If Autosteer still does
not detect your hands on the steering wheel,
the request escalates by sounding chimes that
increase in frequency.
If you repeatedly ignore hands-on prompts,
Autosteer displays the following message and
becomes disabled for the rest of the drive. If
you don't resume manual steering, Autosteer
sounds a continuous chime, turns on the
warning flashers, and slows the vehicle to a
complete stop.
For the rest of the drive, you must steer
manually. Autosteer is available again after
you shift the vehicle into Park.
Take Over Immediately
In situations where Autosteer is unable to
steer Model S, Autosteer sounds a warning
chime and displays the following message on
the instrument panel:
When you see this message, TAKE OVER
STEERING IMMEDIATELY.
Canceling Autosteer
Autosteer cancels when:
• You start steering manually.
• You press the brake pedal.
• You push the cruise control lever away
from you.
• You unbuckle the driver's seat belt.
• The maximum speed that Autosteer
supports (90 mph/150 km/h) is exceeded.
• You shift out of the Drive gear.
• An Automatic Emergency Braking event
occurs (see Collision Avoidance Assist on
page 85).
When Autosteer cancels, the Autosteer icon is
gray to indicate that Autosteer is no longer
active.
Note: If Autosteer cancels because you started
steering manually,
Trac-Aware Cruise
Control remains active. Disengage
Trac-
Aware Cruise Control as you normally would,
by pressing the brake or briefly pushing the
cruise control lever away from you.
To disable Autosteer so it is no longer
available, touch Controls > Settings > Driver
Assistance > Autosteer > OFF.
Autosteer
74 Model S Owner's Manual
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