Tesla S Owner's Manual page 66

You can accelerate at any time when driving at
a set speed using Traffic-Aware Cruise Control.
But when you release the accelerator, Model S
returns to the set speed.
When following a vehicle, Traffic-Aware Cruise
Control remains active at low speeds, even if
Model S comes to a standstill while following a
vehicle. When traffic is moving again, Traffic-
Aware Cruise Control resumes operating at
your currently set speed. However, if an or
object is detected in front of Model S, Traffic-
Aware Cruise Control goes into a HOLD state
and the instrument panel displays a message
indicating that you need to resume cruise
control. To resume, press the accelerator pedal
or pull the cruise control lever toward you (see
Canceling and Resuming
In right hand traffic, engaging the right turn
signal when driving in the right-most lane
within 50 meters of an exit (on a controlled
access road only, such as a highway or
freeway), causes Traffic-Aware Cruise Control
to assume you are exiting. As a result, Traffic-
Aware Cruise Control begins to slow down the
vehicle. Likewise in left hand traffic, when
engaging the left turn signal when driving in
the left-most lane within 50 meters of an exit.
The onboard GPS (Global Positioning System)
determines if you are driving in a region with
right or left hand traffic. In situations where
GPS data is unavailable (for example,
inadequate signal), engaging the turn signal
near an exit does not cause Traffic-Aware
Cruise Control to slow down the vehicle.
Note: If you double-pull the cruise control
lever (or single-pull when Traffic-Aware Cruise
Control is active), Autosteer activates and the
set speed changes to either your current
driving speed, or the speed limit plus any
offset you have defined, whichever is greater
(see Cruising at the Speed Limit
66).
Note: When Traffic-Aware Cruise Control is
actively slowing down Model S to maintain the
selected distance from the vehicle ahead, the
brake lights turn on to alert other road users
that you are slowing down. You may also
notice slight movement of the brake pedal.
Warning: Due to limitations inherent in
the onboard GPS, you may experience
situations in which Traffic-Aware Cruise
Control slows down the vehicle, especially
near highway exits where a curve is
detected and/or you are actively
navigating to a destination and not
following the route.
Driver Assistance
on page 68).
on page
Traffic-Aware Cruise Control
Warning: Traffic-Aware Cruise Control can
not detect all objects and may not brake/
decelerate for stationary vehicles,
especially in situations when you are
driving over 80 km/h and a vehicle you
are following moves out of your driving
path and a stationary vehicle or object is
in front of you instead. Always pay
attention to the road ahead and stay
prepared to take immediate corrective
action. Depending on Traffic-Aware
Cruise Control to avoid a collision can
result in serious injury or death. In
addition, Traffic-Aware Cruise Control
may react to vehicles or objects that
either do not exist or are not in the lane
of travel, causing Model S to slow down
unnecessarily or inappropriately.
Warning: Traffic-Aware Cruise Control
may be unable to provide adequate
speed control because of limited braking
capability and hills. It can also misjudge
the distance from a vehicle ahead. Driving
downhill can increase driving speed,
causing Model S to exceed your set
speed. Never depend on Traffic-Aware
Cruise Control to slow down the vehicle
enough to prevent a collision. Always
keep your eyes on the road when driving
and be prepared to take corrective action
as needed. Depending on Traffic-Aware
Cruise Control to slow the vehicle down
enough to prevent a collision can result in
serious injury or death.
Warning: Traffic-Aware Cruise Control
may occasionally brake Model S when not
required or you are not expecting it. This
can be caused by closely following a
vehicle ahead, detecting vehicles or
objects in adjacent lanes (especially on
curves), etc.
Adjust your following distance
To adjust the distance you want to maintain
between Model S and a vehicle traveling
ahead of you, rotate the cruise control lever to
choose a setting from 1 (the closest following
distance) to 7 (the longest following distance).
Each setting corresponds to a time-based
distance that represents how long it takes for
Model S, from its current location, to reach the
location of the rear bumper of the vehicle
ahead.
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