2015 TESLA MODEL S warning light

How Lane Departure Warning
Works
If Model S is equipped with Autopilot, a
camera mounted on the windshield behind the interior rear view mirror monitors the markers
on the lane you are driving in. If a front wheel passes over a lane marking and the associated
turn signal is off, you feel three slight
vibrations in the steering wheel.
Lane Departure Warning operates only when
Model S is traveling over approximately
30 mph (50 km/h).Warning: Lane Departure Warning is for
guidance purposes only. Never depend
on Lane Departure Warning to inform you of unintentionally driving outside of theboundaries of the driving lane. Several
external factors can reduce the
performance of Lane Departure Warning,
causing either no readings or false
readings. Therefore, depending on this
system to stay within the boundaries of the driving lane can result in serious injuryor death. Always keep your eyes on the
road when driving. It is the driver's
responsibility to stay alert, drive safely,
ensure the vehicle stays in the traveling lane, and be in control of the vehicle at all
times.Warning: Lane Departure Warning is
designed to activate when it detects lane markings. It is not designed to detect the
edge of a road. It is the driver's
responsibility to drive attentively and stay
within the boundaries of the driving lane.Caution: If your Model S is equipped with
Lane Departure Warning, you must take
your vehicle to Tesla Service if a
windshield replacement is needed. Failure
to do so can cause Lane Departure
Warning to malfunction.Controlling Lane Departure
Warning
To turn Lane Departure Warning on or off,
touch Controls > Settings > Driver
Assistance > Lane Assist .
Limitations and Inaccuracies Lane Departure Warning can not always
clearly detect lane markings and you may
experience unnecessary or invalid warnings in
these situations:
• Visibility is poor and lane markings are not clearly visible (due to heavy rain, snow,fog, etc.).
• Bright light (oncoming headlights or direct sunlight) is interfering with thecamera's view.
• Model S is being driven very close to a vehicle in front of it which is blocking the
camera's view.
• The windshield area in the camera's field of view is obstructed (fogged over, dirty,
covered by a sticker, etc.).
• Lane markings are excessively worn or have been adjusted due to roadconstruction.
• Lane markings are changing quickly (for example, lanes branching off, crossing
over, or merging).
• The road is narrow or winding.
• Objects or landscape features are casting strong shadows on lane markers.
Lane Departure Warning
Driving57

• 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.).Warning: The list above does not
represent an exhaustive list of situations
that may interfere with proper operation of Forward Collision Warning. ForwardCollision Warning may fail to provide
warnings for many other reasons. To
avoid a collision, stay alert and always pay attention to the area in front of
Model S so you can anticipate the need to take corrective action as early as
possible.
Forward Collision Warning
Driving59

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

Overtake AccelerationWhen following a vehicle with Traffic-AwareCruise Control operating, engaging the turnsignal to indicate a move into the passing lanebriefly accelerates Model S towards thevehicle ahead. By engaging or momentarilyholding the turn signal, you can quicklyaccelerate up to your set speed without
having to press the accelerator pedal. The
turn signal accelerates Model S only when the following conditions are met:
• Traffic-Aware Cruise Control is operating and detecting a vehicle in front.
• Model S is travelling below the set speed, but over 45 mph (72 km/h).
• The turn signal indicates a move into the passing lane.
• The Overtake Acceleration setting is turned ON ( Controls > Settings > Driver
Assistance > Overtake Acceleration ).
Overtake Acceleration is intended as an aid
when passing a vehicle ahead of you. When
the turn signal is engaged, Traffic Aware
Cruise Control continues to maintain distance
from the vehicle ahead, but allows you to
drive slightly closer than your selected
distance.
Acceleration cancels when:
• You reach your set cruising speed.
• Changing lanes takes too long.
• Model S gets too close to the vehicle ahead.
OR
• You disengage the turn signal.
To turn Overtake Acceleration on or off, touch
Controls > Settings > Driver Assistance >
Overtake Acceleration . When Overtake
Acceleration is turned off, engaging a turn
signal when Traffic-Aware Cruise Control is
active does not increase your driving speed.
Note: Overtake Acceleration occurs when you
either fully engage the turn signal, or you hold the turn signal in the momentary position(partially engaged). When you release ordisengage the turn signal, Model S stops
accelerating (in the same way as when you
release the accelerator pedal) and resumes
the set speed.Note: Model S automatically determines
whether the turn signal indicates a move into a passing lane based on if you are driving in aregion with right or left hand traffic. Whendriving in right hand traffic, only the left turn
signal (moving the turn signal lever down) provides acceleration. In left hand traffic, only
the right turn signal (moving the turn signal
lever up) provides acceleration.Warning: Overtake acceleration can
cancel for many unforeseen reasons in
addition to those listed above. Stay alert and never depend on Overtake
Acceleration to increase your driving
speed.Warning: Overtake Acceleration increases
your driving speed whenever the
appropriate turn signal is engaged, even
when it may not be your intention to
overtake the vehicle you are following.
Although Traffic-Aware Cruise Control
maintains a safe driving distance from the
vehicle ahead, it is the driver's
responsibility to drive safely and stay in
control of the vehicle at all times.Warning: Model S uses its onboard GPS
(Global Positioning System) to determine
if you are currently driving in a region
with right hand or left hand traffic. GPS
data is not always accurate and may not
always be available. It is the driver's
responsibility to stay in control of the
vehicle at all times. Never depend on
Overtake Acceleration to appropriately
increase your driving speed. Conversely,
when using Traffic-Aware Cruise Control,
never assume that using a turn signal will
not increase your driving speed.
Depending on this feature can result in
serious injury or death.
Traffic-Aware Cruise Control
Driving63

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

1.Status bar
The top line displays provides shortcuts to
Charging, HomeLink, Driver Profiles,
vehicle information (the Tesla “T”),
software updates, Bluetooth ®
, and Wi-Fi
settings. The status symbols show outside
temperature, network signal strength,
Bluetooth, Wi-Fi settings, passenger
airbag status, and time. If an alert icon
(exclamation mark) is displayed, touch it
to see warning messages that are in
effect.
Note: The airbag status symbol displays
only when Model S is powered on.
2. Apps
There are several ways to display an app
in the main viewing area:
• Tap the app’s icon to display it in the top viewing area. If the app is alreadydisplayed, a second tap displays it infull-screen view (only some apps have a full-screen mode).
• Drag the app’s icon directly onto the top or bottom viewing area.
• Touch and hold the app’s icon to display a popup that lets you choose
whether to display the app in the top or bottom of the main viewing area.Media. See Media and Audio on
page 85.Maps and Navigation (if
equipped). See Using Maps on
page 90.Calendar. See Calendar on page
93.Energy. See Getting Maximum
Range on page 70.Web. Access the Internet using
the web browser (if equipped).Camera. Display the area behind
Model S. This area also displays
automatically whenever you shift
into Reverse. See Rear View
Camera on page 71.Phone. See Phone on page 88.
3.Main viewing area
The main viewing area changes
depending on the app you have chosen
(in the example, the Nav and Media apps
are displayed). For some apps (such as
Nav and Web), you can zoom in and out
using standard touchscreen finger
gestures.
4. Maximize/minimize app
Touch the small rectangle to expand the
associated app to fill the entire main
viewing area (some apps are not
expandable). Touch again to display two
apps in half-screen view.
5. Controls
Touch to access all Model S controls and settings (doors, locks, lights, etc).
6. Climate controls (see Climate Controls on
page 80).
7. Volume control
Touch the up and down arrows to increase or decrease the volume of the
speakers. You can also adjust the volume
using the scroll wheel on the left side of
the steering wheel.
8. Reverse the position of the two currently
displayed apps.Warning: Paying attention to road and
traffic conditions must always be the
driver's highest priority. To ensure the
safety of vehicle occupants as well as other road users, using the touchscreenshould be done only when road andtraffic conditions permit.
Touchscreen Overview
Using the Touchscreen73

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