Tesla S 2017 - Traffic-Aware Cruise Control; Cruising at the Speed Limit

The gray speedometer icon
on the instrument panel
turns blue and displays the
set speed to indicate that
Trac-Aware Cruise Control
is active.
Note: The minimum set speed is 18 mph
(30 km/h). The maximum set speed is 90 mph
(150 km/h). It is the driver's responsibility to
cruise at a safe speed based on road
conditions and speed limits.
You can now release the accelerator pedal and
allow
Trac-Aware Cruise Control to maintain
your set speed. When no vehicle is detected
ahead,
Trac-Aware Cruise Control maintains
the set speed. If a vehicle is detected, Trac-
Aware
Cruise Control maintains your chosen
following distance, up to the set speed,
accelerating and decelerating Model S as
needed. When the vehicle you are following is
no longer detected,
Trac-Aware Cruise
Control accelerates up to the set speed.
Trac-Aware Cruise Control also adjusts the
speed as appropriate when entering and
exiting curves.
You can manually accelerate at any time when
driving at a set speed using
Trac-Aware
Cruise Control. But when you release the
accelerator, Model S returns to the set speed.
When following a vehicle, Trac-Aware Cruise
Control remains active at low speeds, even if
Model S comes to a standstill. When the
vehicle is moving again,
Trac-Aware Cruise
Control resumes operating at your current set
speed. However, under the following
circumstances,
Trac-Aware Cruise Control
goes into a HOLD state instead of resuming,
and the instrument panel displays a message
indicating that you need to resume cruise
control:
• You have been at a standstill for 5
minutes.
• The driver's seat belt is unbuckled.
• Model S detects a pedestrian nearby (the
HOLD state may clear when the
pedestrian is no longer close by).
• Model S suddenly loses visibility of the
vehicle you are following.
• The ultrasonic sensors detect an obstacle
in front of Model S.
To resume
Trac-Aware Cruise Control, press
the accelerator pedal or pull the cruise control
lever toward you (see Canceling and
Resuming on page 80).
In right hand
trac, engaging the right turn
signal when driving in the right-most lane
within 164 feet (50 meters) of an exit (on a
controlled access road only, such as a highway
or freeway), causes Trac-Aware Cruise
Control to assume you are exiting. As a result,
Trac-Aware Cruise Control begins to slow
down the vehicle. Likewise in left hand
trac,
when engaging the left turn signal when
driving in the left-most lane within 164 feet
(50 meters) of an exit. The onboard GPS
(Global Positioning System) determines if you
are driving in a region with right or left hand
trac. In situations where GPS data is
unavailable (for example, if there is inadequate
signal), engaging the turn signal near an exit
does not cause
Trac-Aware Cruise Control to
slow down Model S.
Note: If you double-pull the cruise control
lever (or single-pull when
Trac-Aware Cruise
Control is active), Autosteer activates if
enabled (see Autosteer on page 82) and the
set speed changes to either your current
driving speed, or the speed limit plus any
oset you have defined in Speed Assist,
whichever is greater (see Cruising at the
Speed Limit on page 78).
Note: When
Trac-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.
However, when
Trac-Aware Cruise Control is
accelerating Model S, the accelerator pedal
does not move.
Warning:
Due to limitations inherent in
the onboard GPS, you may experience
situations in which Trac-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.
Warning: Trac-Aware Cruise Control
cannot detect all objects and may not
brake/decelerate for stationary vehicles,
especially in situations when you are
driving over 50 mph (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
Trac-Aware
Cruise Control to avoid a collision can
result in serious injury or death. In
addition,
Trac-Aware Cruise Control
Trac-Aware Cruise Control
Driver Assistance 77