Tesla S 2017 - Traffic-Aware Cruise Control; Changing Set Speed; Overtake Acceleration

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: Trac-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
(and potentially the road's speed limit).
Never depend on
Trac-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
Trac-Aware
Cruise Control to slow the vehicle down
enough to prevent a collision can result in
serious injury or death.
Warning: Trac-Aware Cruise Control
may occasionally cause Model S to brake
when not required or when 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 following 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 of you.
As you rotate the cruise control lever, the
instrument panel displays the current setting.
Release the lever when the desired setting is
displayed.
Note: Your setting is retained until you
manually change it.
Warning: It is the driver's responsibility to
determine and maintain a safe following
distance at all times. Do not rely on
Trac-Aware Cruise Control to maintain
an accurate or appropriate following
distance.
Warning: Never depend on Trac-Aware
Cruise Control to adequately slow down
Model S to avoid a collision. Always watch
the road in front of you and stay prepared
to take immediate corrective action.
Cruising at the Speed Limit
Trac-Aware Cruise Control makes it easy to
cruise at the speed limit. You can cruise at the
speed limit that is currently being determined
by Speed Assist (see Speed Assist on page
97). To do so, pull the cruise control lever
toward you. When you release, your cruising
speed is set to the speed that is determined
by Speed Assist, taking into consideration any
oset you have specified. If you are already
driving faster than the speed limit when you
pull the lever, the set speed does not adjust to
the speed limit—it adjusts to your current
driving speed.
Note: When you adjust the cruising speed
based on the speed limit, the set speed does
not change when the speed limit changes. You
must pull the cruise control lever again to
cruise at the new speed limit. You can also
manually adjust your cruising speed at any
time (see Changing the Set Speed on page
79).
Note: Your set speed will use your current
driving speed if you move the cruise control
lever up or down.
Note: If Speed Assist is unable to determine a
speed limit, your set speed does not change
when you pull the cruise control lever toward
you.
Warning:
Do not rely on Speed Assist or
Trac-Aware Cruise Control to determine
an accurate or appropriate cruising
Trac-Aware Cruise Control
78 Model S Owner's Manual