warning TESLA MODEL S 2020 User Guide

IndicatorDescription
An ABS (Anti-lock Braking System) fault is detected. See Braking and Stopping on
page 66. Contact Tesla immediately.The parking brake is manually applied. See Parking Brake on page 68.A parking brake fault is detected. Contact Tesla. See Parking Brake on page 68.Vehicle Hold is actively applying the brakes. See Vehicle Hold on page 73.Tire pressure warning. The pressure of a tire is out of range. If a fault with the Tire
Pressure Monitoring System (TPMS) is detected, the indicator

Braking and Stopping
Braking Systems
Warning: Properly functioning braking
systems are critical to ensure safety. If you experience a problem with the brake
pedal, brake caliper, or any component of
a Model S braking system, contact Tesla
immediately.
Model S has an anti-lock braking system (ABS) that prevents the wheels from locking
when you apply maximum brake pressure. This
improves steering control during heavy
braking in most road conditions.
During emergency braking conditions, the
ABS constantly monitors the speed of each
wheel and varies the brake pressure according
to the grip available.
The alteration of brake pressure can be felt as
a pulsing sensation through the brake pedal.
This demonstrates that the ABS is operating
and is not a cause for concern. Keep firm and
steady pressure on the brake pedal while
experiencing the pulsing.
The ABS indicator brie

Caution: If the brakes are not functioning
properly, stop the vehicle as soon as safety permits and contact Tesla Service.
See Park on page 52 for information on
using the Park button to stop the vehicle
in case of emergency.Warning: Always maintain a safe driving
distance from the vehicle in front of you
and be cautious in hazardous driving
conditions. Do not rely on brake disc
wiping or hydraulic fade compensation to act as a substitute for adequate braking.
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 reducing or
removing pressure from the accelerator pedal
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 when your foot is
completely off the accelerator pedal at
highway speeds), the brake lights turn on to
alert others that you are slowing down.
Warning: In snowy or icy conditions
Model S may experience traction loss
during regenerative braking, particularly
when in the Standard setting and/or not
using winter tires. Tesla recommends
using the Low setting (see To Set the
Regenerative Braking Level on page 67)
in snowy or icy conditions to help maintain vehicle stability.
The Energy app displays real-time feedback
on the amount of energy being gained by
regenerative braking. You can also display the
power meter on either side of the instrument
panel by choosing Energy using the scroll
button on the steering wheel (see Steering
Wheel on page 44).
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. For example,
regenerative braking may be limited if the Battery is already fully charged or if the
ambient temperature is too cold.
Note: If regenerative braking is limited, a
dashed yellow line displays on the power
meter.
To Set the Regenerative Braking Level
You can use the touchscreen to change the
level of regenerative braking:
1. Touch Controls > Driving > Regenerative
Braking .
2. Choose from two levels:

Use the touchscreen to manually release the
parking brake (which also shifts Model S into Neutral):
1. Touch Controls > Safety & Security .
2. Press the brake pedal, then touch Parking
Brake . If Model S was previously in Park, it
shifts into Neutral.When you use the touchscreen to
manually apply the parking brake,
the red parking brake indicator lights
up on the instrument panel.If the parking brake experiences an
electrical issue, the amber parking brake indicator lights up and a fault
message displays at the top of the
instrument panel.Caution: In the unlikely event that Model S
loses electrical power, you cannot access
the touchscreen and are therefore unable to release the parking brake. Contact
Tesla.
Brake Wear
Model S brake pads are equipped with wear
indicators. A wear indicator is a thin metal
strip attached to the brake pad that squeals as
it rubs against the rotor when the pad wears
down. This squealing sound indicates that the
brake pads have reached the end of their service life and require replacement. To
replace the brake pads, contact Tesla Service.
Brakes must be periodically inspected visually by removing the tire and wheel. For detailed
specifications and service limits for rotors and
brake pads, see Subsystems on page 194.
Additionally, Tesla recommends cleaning and
lubricating the brake calipers every year or
12,500 miles (20,000 km) if in an area where
roads are salted during winter months.
Warning: Neglecting to replace worn
brake pads damages the braking system
and can result in a braking hazard.
Braking and Stopping
Driving69

Park Assist
How Park Assist Works
Model S has several sensors designed to detect the presence of objects. When drivingslowly in Drive or Reverse (for example, when
parking), the sensors alert you if an object is
detected in close proximity of your Model S.
Objects are only detected in the direction of
the gear you selected; front objects in Drive,
rear objects in Reverse.
Warning: You may not be alerted if
Model S rolls freely in the opposite
direction of the gear you selected (for
example, you will not receive an alert if
Model S rolls backwards down a hill while
in Drive).
The sensors are activated when driving slower
than 5 mph (8 km/h).
Warning: Never depend on Park Assist to
inform you if an area you are approaching is free of objects and/or people. Several
external factors can reduce the
performance of Park Assist, causingeither no readings or false readings (see
Limitations and False Warnings on page
72). Therefore, depending on Park Assist
to determine if Model S is approaching an obstruction can result in damage to the
vehicle and/or objects, and can
potentially cause serious injury. Always
inspect the area with your own eyes.
When reversing, perform shoulder checks and use all mirrors. Park assist does not
detect children, pedestrians, bicyclists,
animals, or objects that are moving, protruding, located too far above or
below the sensors, or too close or too far
from the sensors. Park Assist is for
guidance purposes only and is not intended to replace your own direct visual
checks. It is not a substitute for careful
driving.
Visual and Audio Feedback
When you shift to Reverse, the Park Assist
view displays on the left side of the instrument
panel, showing objects that are in close
proximity to the front and rear of Model S.
This view closes when you shift into Drive
unless an object is detected close to the front
of Model S, in which case the Park Assist view
closes automatically when your driving speed
exceeds 5 mph (8 km/h). When reversing,
visual feedback also displays on the touchscreen, immediately below the camera
view (see Rear View Camera on page 79). You
can manually close the park assist view on the touchscreen by touching the X in the upper
corner.
When driving with the Camera app displayed on the touchscreen, you can switch to the
Park Assist view when driving at speeds below
5 mph (8 km/h). Touch the button located in
the upper left corner of the Camera app
window. This is useful if you need assistance
with parallel parking.
If chimes are turned on (see Controlling
Audible Feedback on page 72), an audible
beep sounds as you approach an object. You
can temporarily mute the chime by pressing
the scroll button on the left side of the steering wheel or by touching the mute buttonon the bottom left corner of the Park Assist
view.
Note: If a sensor is unable to provide
feedback, the instrument panel displays an
alert message.
Caution: Keep sensors clean from dirt,
debris, snow, and ice. Avoid using a high
Park Assist
Driving71

pressure power washer on the sensors
and do not clean a sensor with a sharp or abrasive object that can scratch or
damage its surface.Caution: Do not install accessories or
stickers on or near the parking sensors.
Controlling Audible Feedback
You can use Park Assist with or without
audible feedback. To turn chimes on or off,
touch Controls > Safety & Security > Park
Assist Chimes .
To mute the chimes temporarily, press the
scroll button on the left side of the steering
wheel or touch the mute button in the corner
of the Park Assist view. The chimes are muted
until you shift into a different gear or drive
over 5 mph (8 km/h).
Limitations and False Warnings The parking sensors may not function
correctly in these situations:

Rear View Camera
Camera Location
Model S is equipped with a rear view camera
located above the rear license plate.
Whenever you shift into Reverse, the
touchscreen displays the view from the
camera. Lines show your driving path based
on the position of the steering wheel. These
lines adjust appropriately as you move the
steering wheel.
Note: Visual feedback from the parking
sensors display on the instrument panel (see Park Assist on page 71).
To display the view from the camera at any
time:
Open the app launcher then
touch the camera icon.Warning: Never depend on the rear view
camera to inform you if the area behind
you is free of objects and/or people when
reversing. The camera may not detect
objects or barriers that can potentially
cause damage or injury. In addition, several external factors can reduce the
performance of the camera, including a
dirty or obstructed lens. Therefore,
depending on the rear view camera to
determine if Model S is approaching an
obstruction can result in damage to the vehicle and/or objects, and can
potentially cause serious injury. Always
inspect the area with your own eyes.
When reversing, perform shoulder checks and use all mirrors. Use the camera forguidance purposes only. It is not intendedto replace your own direct visual checks
and is not a substitute for careful driving.
Cleaning the Camera
To ensure a clear picture, keep the camera lens clean, and free of obstructions. Remove any
buildup of dirt by occasionally wiping the
camera lens with a soft damp cloth.
Caution: Do not use chemical-based or
abrasive cleaners. Doing so can damage
the surface of the camera lens.
Rear View Camera
Driving79

decelerate when a vehicle or object is
only partially in the driving lane or when a
vehicle you are following moves out of your driving path and a stationary or
slow-moving vehicle or object is in front of you. Always pay attention to the road
ahead and stay prepared to take
immediate corrective action. Depending
on Traffic-Aware Cruise Control to avoid a
collision can result in serious injury or death. In addition, 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 be unable to provide adequate
speed control because of limited braking capability and hills. It can also misjudgethe distance from a vehicle ahead. Driving
downhill can increase driving speed, causing Model S to exceed your set speed
(and potentially the road

Note: Your setting is retained until you
manually change it.
Warning: It is the driver

To resume cruising at the current drivingspeed, move the cruise control lever up or
down, then release.
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 Traffic-
Aware Cruise Control (see Regenerative
Braking on page 67).
Warning:
Traffic-Aware Cruise Control
cancels, or may not be available, in the
following situations: