brake TESLA MODEL S 2015 User Guide

Regenerative Braking
Whenever Model S is moving and your foot is off the accelerator, regenerative braking slows
down Model S and feeds any surplus energy
back to the Battery.
By anticipating your stops and simply removing your foot from the accelerator to
slow down, you can take advantage of
regenerative braking to increase driving range. Of course, this is no substitute for
regular braking when needed for safety.
Note: If regenerative braking is aggressively
slowing Model S, such as on a steep descent,
brake lights turn on to alert other road users
that you are slowing down.
The power meter on the instrument panel displays real-time feedback on the amount of
energy being gained by regenerative braking.
The amount of energy fed back to the Battery
using regenerative braking can depend on the current state of the Battery and the charge
level setting that you are using. If regenerative braking is limited, a dashed yellow line
displays on the power meter. For example,
regenerative braking may be limited if the
Battery is already fully charged or if the
ambient temperature is low.
To Set the Regenerative Braking Level
You can use the touchscreen to change thelevel of regenerative braking:
1. Touch Controls > Driving > Regenerative
Braking .
2. Choose from two levels:
•
Standard . Provides the maximum
amount of regenerative braking. When you release the accelerator,
Model S slows down faster, reducing
the need to use the brakes.
• Low . Limits the amount of
regenerative braking. When you
release the accelerator, Model S takes longer to slow down and coastsfurther.
Parking Brake The parking brake automatically engages
whenever you shift Model S into Park, and
releases whenever you shift into any other
gear.
Note: The parking brake operates on the rear
wheels only, and is independent of the foot-
operated brake system.
Use the touchscreen to manually release the parking brake (which also shifts Model S intoNeutral):
1. Touch Controls > E-Brake & Power Off .
2. Press the brake pedal, then touch Parking
Brake. If Model S was previously in Park, it
shifts into Neutral.
The parking brake indicator lights up on the instrument panel whenever
you use the touchscreen to manually
apply the parking brake.If an electrical issue occurs with the
parking brake, an amber parking
brake fault message displays at the
top center of the touchscreen.Caution: In the unlikely event that
Model S loses electrical power, you
cannot release the parking brake.
Brakes
Driving53

How It WorksThe traction control system constantly
monitors the difference in speed between the
front and rear wheels. If Model S experiences a
loss of traction, the system minimizes wheel
spin by controlling brake pressure and motor
power. By default, the traction control system
is always active. Under normal conditions, it should remain active to ensure maximum
safety.
On standard Model S vehicles, traction control can be turned off at any time. Turn it off only
in circumstances where you deliberately want
the wheels to spin, such as when Model S is
stuck in snow or mud.
On a dual motor Model S, you can enable slip
start to allow the wheels to spin at a limited speed. Slip start can be enabled only whenModel S is moving 20 mph (32 km/h) or
slower. Slip start automatically disables when the speed exceeds 40 mph (64 km/h).This indicator displays on the
instrument panel whenever the
traction control system is actively
controlling brake pressure and
motor power to minimize wheel spin.Warning: Traction control can not
prevent accidents caused by driving dangerously or turning too sharply at
high speeds.
Allowing Wheel Slip
Under normal conditions, the traction control
system should remain enabled. Disable it only in circumstances where you deliberately want
the wheels to spin, such as:
• Starting on a loose surface, such as gravel or snow.
• Driving in deep snow, sand or mud.
• Rocking out of a hole or deep rut.
To allow the wheels to spin on a standard single motor Model S, touch Controls >
Driving > Traction Control > Off .
To allow the wheels to spin on a dual motor
Model S, touch Controls > Driving > Traction
Control > Slip Start .
This indicator displays at the top
center of the touchscreen whenever
the wheels are allowed to spin (i.e.
when the traction control system on
a standard single-motor Model S is
turned off, or when Slip start on a
dual-motor Model S is enabled.
Although the traction control system automatically reactivates the next time you
start Model S, it is strongly recommended that you enable it immediately after thecircumstances that required you to disable it
have passed.
Traction Control
54Model S Owner's Manual

How Forward Collision Warning
Works
If Model S is equipped with Autopilot, a
camera mounted on the windshield behind the interior rear view mirror and a radar sensor in
the center of the front grill monitor the area in
front of Model S for the presence of a vehicle,
bike or pedestrian. If a collision is considered likely unless you take immediate correctiveaction, Forward Collision Warning is designedto provide visual and audible warnings.
The cameras and sensors associated withForward Collision Warning are designed to
monitor an approximate area of up to 525 feet (160 meters) in the driving path, as illustrated
below.Warning: The area being monitored by
Forward Collision Warning can be adversely affected by road and weatherconditions (see Limitations on page 58).
Use appropriate caution when driving.Caution: If your Model S is equipped with
Forward Collision Warning, you must take
your vehicle to Tesla Service if a
windshield replacement is needed. Failure
to do so can cause Forward Collision
Warning to malfunction.Warning: Forward Collision Warning does
not operate when Model S is traveling less than 4 mph (7 km/h).Warning: Forward Collision Warning is
designed only to provide visual and
audible alerts (see Visual and Audible
Feedback on page 58). It does not
attempt to apply the brakes or decelerate
Model S. When seeing and/or hearing a warning (described below), it is the
driver's responsibility to immediately take an appropriate action.Warning: Forward Collision Warning is for
guidance purposes only and is not a
substitute for attentive driving and soundjudgement. Always keep your eyes on the road when driving and never depend on
Forward Collision Warning to warn you of a potential collision. Several factors canreduce the performance of Forward
Collision Warning, causing either
unnecessary, invalid, inaccurate, or
missed warnings (see Limitations on page
58). Depending on Forward Collision
Warning to warn you of a potential
collision can result in serious injury or
death.
Visual and Audible Feedback
When a collision with a vehicle, bicycle, or
pedestrian is considered likely unless
immediate action is taken, Forward Collision
Warning is designed to sound an audible alert
and display a collision warning in the center of the instrument panel.
Warnings cancel automatically when the risk
of a collision has been reduced (for example,
you have decelerated or stopped Model S, or
a vehicle in front has moved out of your
driving path).
Warning: Forward Collision Warning may
provide a warning in situations where the
likelihood of collision may not exist. Stay
alert and always pay attention to the area
in front of Model S so you can anticipate
whether any action is required.
Controlling Forward Collision
Warning
To turn Forward Collision Warning off or
adjust its sensitivity, touch Controls >
Settings > Driver Assistance > Forward
Collision Warning . Instead of the default
warning level of Medium, you can turn the
warning Off, or you can choose to be warned
Late or Early .
Note: Your chosen setting is retained until you
manually change it. It can also be saved in
your driver profile.
Limitations Forward Collision Warning cannot always
detect vehicles, bikes, or pedestrians, and you may experience unnecessary, inaccurate,
invalid or missed warnings for many reasons, particularly if:
• The road has sharp curves.
Forward Collision Warning
58Model S Owner's Manual

Traffic-Aware Cruise Control uses a camera
mounted on the windshield behind the interior
rear view mirror and a radar sensor in the
center of the front grill to detect whether
there is a vehicle in front of you in the same lane. If the area in front of Model S is clear,Traffic-Aware Cruise Control is designed todrive consistently at a set speed. When a
vehicle is detected, Traffic-Aware Cruise
Control is designed to slow down Model S if needed to maintain a selected time-baseddistance from the vehicle in front, up to the
set speed. Traffic-Aware Cruise Control does
not eliminate the need to watch the road in
front of you and to apply the brakes if needed.
Traffic-Aware Cruise Control makes it easy to maintain a consistent time-based distance
from a vehicle travelling in front of you in the
same lane. Traffic-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.
Note: Traffic-Aware Cruise Control is available
only if your Model S is equipped with Autopilot hardware and you have purchased
the Tech Package.
Operating Traffic Aware Cruise
Control
1. Touch the end of the cruise control lever.
Unless a vehicle is detected ahead of you, you must be driving at least 18 mph
(30 km/h) to initiate Traffic-Aware Cruise
Control. If a vehicle is detected in front of you, you can initiate Traffic-Aware CruiseControl at any speed, even when
stationary.
The light on the lever turns on. Traffic-
Aware Cruise Control is now in standby
mode and is not actively controlling your speed until you specify a cruising speed,
as described in the next step.
2. Set your cruising speed by accelerating
until you reach a desired cruising speed
then moving the cruise control lever up or
down (or pull briefly toward you), then
releasing.
Once you've initally set a cruising speed, you can adjust the speed to cruise at the
speed limit that is currently being
determined by Speed Assist (see Speed
Assist on page 55). To do so, pull the
cruise control lever toward you and hold momentarily (about half a second). Whenyou release, your cruising speed is set to
the speed that is automatically or manually being determined by Speed
Assist, taking into consideration any offset you may have specified.
Note: When you adjust the cruising speed
based on the speed limit, the set speed
does not change when the speed limit changes. You will need to pull the lever
again. You can also manually adjust your
cruising speed at any time (see Changing
the Set Speed on page 62).
Warning: Do not rely on Speed Assist
to determine an accurate or
appropriate cruising speed. Always
cruise at a safe speed based on traffic and road conditions.
3. To set the distance you want to maintain
between Model S and a vehicle travelling
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.
As you rotate the cruise control lever, the
instrument panel displays the current
setting. Release the lever when the
desired setting is displayed.
Traffic-Aware Cruise Control
60Model S Owner's Manual

The instrument panel displays the Cruisemessage above the speedometer (see
Instrument Panel Indicator Lights on page
62) and a tick mark at the edge of the
speedometer indicates the set speed.
You can now release the accelerator pedal
and allow Traffic-Aware Cruise Control to maintain your set speed. When no vehicle isdetected ahead, Traffic-Aware Cruise Control
maintains the set speed. If a vehicle is
detected, Traffic-Aware Cruise Control
maintains your chosen following distance, up to the set speed, decelerating Model S as
needed. When the vehicle you are following is no longer detected, Traffic Aware Cruise
Control accelerates back to the set speed.
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. If
Model S comes to a standstill and remains stationary for approximately three seconds
(slightly longer when driving on highway
conditions), you will need to resume Traffic-
Aware Cruise Control by pressing the
accelerator pedal or pulling the cruise control lever toward you (see Canceling and
Resuming on page 64). A message displays
on the instrument panel that you need to
resume Traffic-Aware Cruise Control.
When Traffic-Aware Cruise Control is actively
slowing down Model S to maintain the
selected distance from the vehicle ahead,
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: Do not depend on Traffic-
Aware Cruise Control to adequately and appropriately slow down Model S. Always
watch the road in front of you and stay
prepared to brake at all times. Traffic-
Aware Cruise Control does not eliminate the need to apply the brakes as needed,even at slow speeds.Warning: Traffic-Aware Cruise Control
can not detect all objects and may not
detect a stationary vehicle or other objectin the lane of travel. There may be
situations in which Traffic-Aware Cruise
Control does not detect a vehicle, bicycle, or pedestrian. Depending on Traffic-
Aware Cruise Control to avoid a collision can result in serious injury or death.Warning: 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 misjudge the distance from a vehicle ahead. Always watch the road in front of
you. It is the driver's responsibility to
maintain a safe distance from a vehicle
ahead of you.Warning: When you enable Traffic-Aware
Cruise Control in a situation where you are closely following the vehicle in front
of you, Model S may apply the brakes to
maintain the selected distance.Warning: Traffic-Aware Cruise Control
has limited deceleration ability and may be unable to apply enough braking to
avoid a collision if a vehicle in front slows
suddenly, or if a vehicle enters your driving lane in front of you. Never dependon Traffic-Aware Cruise Control to slowdown 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: Driving downhill can increase
driving speed, causing Model S to exceed
your set speed. Hills can also make it
more difficult for Model S to slow down
enough to maintain the chosen following
distance from the vehicle ahead.Warning: Traffic-Aware Cruise Control
may occasionally brake Model S when not required based on the distance from a
vehicle ahead. This can be caused by vehicles in adjacent lanes (especially on
curves), or by stationary objects.
Traffic-Aware Cruise Control
Driving61

Canceling and Resuming
To manually cancel Traffic-Aware Cruise
Control, briefly push the cruise control lever
away from you. The message on the
instrument panel turns off, but the set speed remains displayed until Model S powers off.
To resume cruising at the previously set
speed, briefly pull the cruise control lever
toward you.
Note: When Traffic-Aware Cruise Control
cancels, Model S does not coast. Instead,
regenerative braking slows down Model S in
the same way as when you move your foot off
the accelerator when driving without cruise
control (see Regenerative Braking on page
53).
Warning: Traffic-Aware Cruise Control
may immediately cancel, or may not be available, in the following situations:
• You press the brake pedal.
• Your driving speed drops below 18 mph (30 km/h) in situations when
Model S does not detect a vehicle
ahead within the specified distance.
• You shift Model S out of Drive.
• The driver's seat belt is unbuckled.
• A door is opened.
• The view from the radar sensor or camera is obstructed. This could be
caused by dirt, mud, ice, snow, fog,
etc.
• The traction control setting is manually disabled or is repeatedly
engaging to prevent wheels from
slipping.
• The wheels are spinning while at a standstill.• The cruise control system is failing
and requires service.
When Traffic-Aware Cruise Control is unavailable or cancels, all cruise control
functionality is unavailable. Model S no longer drives consistently at a set speed
and no longer maintains a specified
distance from the vehicle ahead.Warning: Traffic-Aware Cruise Control
can cancel unexpectedly at any time for
unforeseen reasons. Always watch the
road in front of you and stay prepared to
take appropriate action. It is the driver's responsibility to be in control of Model S
at all times.
Limitations
Traffic-Aware Cruise Control is particularly
unlikely to operate as intended in the
following types of situations:
• The road has sharp curves.
• Visibility is poor (due to heavy rain, snow, fog, etc.).
• Bright light (oncoming headlights or direct sunlight) is interfering with the
camera's view.
• The radar sensor in the center of the front grill is obstructed (dirty, covered, etc.).
• The windshield area in the camera's field of view is obstructed (fogged over, dirty,
covered by a sticker, etc.).
Caution: If your Model S is equipped with
Traffic-Aware Cruise Control, you must take your vehicle to Tesla Service if a
windshield replacement is needed. Failure
to do so can cause Traffic-Aware Cruise
Control to malfunction.Warning: Many unforeseen circumstances
can impair the operation of Traffic-Aware Cruise Control. Always keep this in mind
and remember that as a result, Traffic-
Aware Cruise Control may not slow down or may brake or accelerate Model S
inappropriately. Always drive attentively and be prepared to take immediate
action.Warning: Traffic-aware cruise control
may not brake/decelerate for stationary vehicles, especially in situations when youare driving over 50 mph (80 km/h) and a
vehicle you are following moves out of your driving path and a stationary vehicleor object is in front of you instead.
Always pay attention to the road ahead
and stay prepared to take immediate
Traffic-Aware Cruise Control
64Model S Owner's Manual

Hill Start Assist automatically engages the
brakes for approximately one second when on
a hill. This prevents Model S from rolling
during the time it takes for you to move your
foot from the brake pedal to the accelerator
pedal. Hill Start Assist engages the brakes
only if Model S is in Drive and facing uphill, or
in Reverse and facing downhill.Warning: After approximately one
second, Hill Start Assist no longer brakes
your vehicle and it could roll. Therefore,
quickly move your foot from the brake
pedal to the accelerator pedal. Never rely on Hill Start Assist to prevent Model Sfrom rolling for more than one second.Failure to do so can result in a collision.
Hill Start Assist
68Model S Owner's Manual

Driving Tips to Maximize RangeYou can maximize your driving range usingthe same driving habits that you use to
conserve fuel in a gasoline-powered vehicle. In
addition to driving habits, energy
consumption depends on environmental conditions (such as cold weather and hillyroads). To get the maximum mileage from a
charge:
• Avoid frequent and rapid acceleration. • Instead of using the brake to slow down, move your foot off the accelerator.
Whenever Model S is moving and your
foot is off the accelerator, regenerative
braking slows down Model S and feeds
surplus energy back to the Battery (see
Regenerative Braking on page 53).
• Keep tires at the recommended inflation pressures (see Tire Care and Maintenance
on page 109).
• Lighten your load by removing any unnecessary cargo.
• Limit the use of resources such as heating and air conditioning. Using seat heaters to
keep warm is more efficient than heating the cabin. To automatically limit the
amount of power that the climate control system uses to maintain the temperatureof the Battery and the cabin area, touch
Controls > Driving > Range Mode > ON .
Note: On Dual Motor vehicles, you can turn on
Range Mode only when acceleration is set to Sport (if you change Acceleration to Insane,Range Mode automatically turns off).
The power meter on the instrument panel and
the Energy app (described next) provide
feedback on energy usage. With this
feedback, you will soon become familiar with how driving habits and environmental
conditions impact how much energy Model S
is using.
Energy App Use the energy app to view real-time and
projected energy usage. Choose from two
types of charts:
• Consumption Chart: - display how much energy Model S has consumed over thepast 5, 15 or 30 miles (10, 25 or 50 kms).
• Trip Chart - If your Model S is equipped with the navigation option, you can trackthe amount of energy being consumed
while navigating to a destination. The gray
line represents predicted usage and the
green line represents actual usage. Touchthe zoom icon in the top right corner to change the zoom level.
Note: The Trip Chart displays energy usage
only if you are currently navigating to a destination.
Note: In some situations, values and distances
on the Trip chart may be inaccurate. For example, when charging Model S during anactive navigation route. To resolve
inaccuracies, cancel and reinitiate navigation to the destination.
Saving Energy Model S has an energy-saving feature that
reduces the amount of energy being
consumed when Model S is not in use. Touch Controls > Displays > Energy Saving and
choose from the following options:
• OFF . All display systems remain powered
when Model S is not in use, providing the most responsive experience. More energy
is consumed.
• NIGHTLY . Model S shifts to the energy-
saving mode at night (10 pm to 5 am).
• ON. Significantly less energy is consumed
whenever Model S is not in use. The start-
up time of the instrument panel and
Bluetooth could be slower.
• Always Connected . Preserves cell
connectivity when energy saving is active.
This allows the mobile app to connect to
Model S more quickly, and provides
immediate 3G internet access when entering the car. Slightly more energy isconsumed.
Getting Maximum Range
70Model S Owner's Manual

1.Close
Touch the circled X in the top left corner
of a window to close it (or you can touch anywhere outside the window).
2. Sunroof
If Model S is equipped with a sunroof,
touch to adjust its position (see Sunroof
on page 15).
3. Suspension
If Model S is equipped with Smart Air
Suspension, touch to manually raise or lower Model S, or to remove a previously
saved auto-raising location (see Smart Air
Suspension on page 83). Model S must
be powered on and you must press the
brake pedal before you can change
suspension settings. Smart Air Suspension
causes Model S to self-level, even when
powered off. Therefore, when towing or
lifting, you must disable self-leveling (see
Instructions for Transporters on page 150
and Jacking and Lifting on page 132).
4. Driving
• Steering mode Adjust the amount of effort requiredto turn the steering wheel. Sport feels
more responsive whereas Comfort
feels easier to drive and park (see
Steering Wheel on page 37).
• Acceleration (Dual Motor vehicles only)
Choose an acceleration level. Sport is the standard level of acceleration and allows you to maximize driving range(see the Range Mode setting below).
Choose Insane if you want to increase
peak torque by approximately 50 per cent. If you choose Insane, the Range
mode setting, if on, automatically turns off.
• Creep
When on, Model S slowly movesforward when in Drive and backward
in Reverse when you release the brake
(similar to a conventional vehicle with an automatic transmission). You can
adjust this setting only when Model S
is in Park.
• Traction ControlTo allow the wheels to spin on a
standard single motor Model S, you can turn off traction control. On a dualmotor Model S, you can enable Slip
Start. If you turn off Traction Control
(or enable Slip Start), a warning
message displays on the instrument
panel. Traction control turns off for
the current drive only. On dual motor
vehicles, traction control is
automatically turned on again when the speed exceeds 40 mph
(64 km/h). See Traction Control on
page 54.
• Regenerative braking
When you release the accelerator
when driving, regenerative braking
slows Model S and feeds any surplus
energy back to the Battery. If set to
Low, Model S does not slow down as
quickly, but you may experience less range (see Regenerative Braking on
page 53).
Note: Regardless of the setting, the
energy gained by regenerative
braking is reduced if the Battery is
full, or if it is extremely cold or hot
(the surplus energy is used to heat or
cool the Battery).
• Range Mode
If on, Model S conserves energy by
limiting the power of the climate
control system. Cabin heating and
cooling may be less effective, but seat
heaters turn on to compensate. In
Dual Motor vehicles, Range Mode can
be turned on only when acceleration
is set to Sport (see above).
5. Cold Weather
If Model S is equipped with the cold
weather option, you can control all seat heaters as well as the heated wipers andsteering wheel. Heaters that are turned on
are displayed in red. To turn off all seat
heaters, touch All Off. Note that you can
also control the front driver and
passenger seats using the main climate
control panel located on the bottom of
the touchscreen (see Climate Controls on
page 80).
6. Trips
View and reset the trip meters that
summarize how far you have driven (see
Trip Information on page 69).
7. Displays
Controls
Using the Touchscreen75

Manually control the touchscreen’s
brightness and control its day (light
background) or night (dark background)
setting. When set to Auto, the
touchscreen automatically changes between Day and Night brightness
depending on the ambient lighting
conditions. To disable the touchscreen
momentarily for cleaning purposes, touch
Clean Mode . You can also put Model S
into an energy saving mode so it consumes less energy when not in use
(see Getting Maximum Range on page
70). Note that the Displays settings can
also be accessed from the Settings screen.
8. E-Brake & Power Off
You can manually:
• Apply and release the parking brake (see Parking Brake on page 53).
• Power off (see Powering Off on page
41).
9. Doors & Locks (see Using Interior Door
Handles on page 6)
10. Lights (see Lights on page 47)Warning: Do not read the touchscreen
while driving. Doing so increases the
likelihood of a collision. Everything you need to know when driving is displayed
on the instrument panel.
Controls
76Model S Owner's Manual