2017 MODEL S User Manual

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If Model S is equipped with Driver Assistance

components (see About Driver Assistance on

page 65) and you have purchased the optional

Autopilot Tech Package, the forward looking

camera and the radar sensor are designed to

determine when there is a vehicle in front of

you in the same lane. If the area in front of

Model S is clear,

Trac-Aware Cruise Control

maintains a set driving speed. When a vehicle

is detected, Trac-Aware Cruise Control is

designed to slow down Model S as needed to

maintain a selected time-based distance from

the vehicle in front, up to the set speed.

Trac-Aware Cruise Control does not

eliminate the need to watch the road in front

of you and to apply the brakes when needed.

Trac-Aware Cruise Control is primarily

intended for driving on dry, straight roads,

such as highways and freeways. It should not

be used on city streets.

Warning: Trac-Aware Cruise Control is

designed for your driving comfort and

convenience and is not a collision warning

or avoidance system. It is your

responsibility to stay alert, drive safely,

and be in control of the vehicle at all

times. Never depend on Trac-Aware

Cruise Control to adequately slow down

Model S. Always watch the road in front

of you and be prepared to take corrective

action at all times. Failure to do so can

result in serious injury or death.

Warning: Although Trac-Aware Cruise

Control is capable of detecting

pedestrians and cyclists, never depend on

Trac-Aware Cruise Control to

adequately slow down Model S for them.

Always watch the road in front of you and

be prepared to take corrective action at

all times. Failure to do so can result in

serious injury or death.

Warning: Do not use Trac-Aware Cruise

Control on city streets or on roads where

trac conditions are constantly changing.

Warning: Do not use Trac-Aware Cruise

Control on winding roads with sharp

curves, on icy or slippery road surfaces, or

when weather conditions (such as heavy

rain, snow, fog, etc) make it inappropriate

to drive at a consistent speed. Trac-

Aware Cruise Control does not adapt

driving speed based on road and driving

conditions.

Operating Trac-Aware Cruise

Control

The instrument panel

displays a gray speedometer

icon on the left side of the

driving speed to indicate

that

Trac-Aware Cruise

Control is available but the

cruising speed has not been

set. Unless a vehicle is

detected ahead of you, you

must be driving at least

5 mph (8 km/h) to use

Trac-Aware Cruise Control.

If a vehicle is detected ahead

of you, you can use

Trac-

Aware Cruise Control at any

speed, even when stationary.

When driving at your desired speed, set the

cruising speed by moving the cruise control

lever up or down (or pulling it

brieﬂy toward

you), then releasing.

The speedometer icon on the

instrument panel turns blue

and displays the set speed to

indicate that Trac-Aware

Cruise Control is actively

maintaining the set speed.

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 back to the set speed.

Trac-Aware Cruise Control also adjusts the

speed as appropriate when entering and

exiting curves.

Trac-Aware

Cruise Control

Driver Assistance 67

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User Manual - Page 68