2017 MODEL S User Manual

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You can 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 while following a

vehicle. When trac is moving again, Trac-

Aware Cruise Control resumes operating at

your currently set speed. However, if an or

object is detected in front of Model S,

Trac-

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 on page 71).

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, inadequate signal),

engaging the turn signal near an exit does not

cause

Trac-Aware Cruise Control to slow

down the vehicle.

Note: If you double-pull the cruise control

lever (or single-pull when

Trac-Aware Cruise

Control is active), Autosteer activates and the

set speed changes to either your current

driving speed, or the speed limit plus any

oset you have deﬁned, whichever is greater

(see Cruising at the Speed Limit on page

69).

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.

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 can

not 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

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. 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 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.

Trac-Aware

Cruise Control

68 Model S Owner's Manual

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User Manual - Page 69