Braking SystemsWARNING: Properly functioning braking systems
are critical to ensure safety. If you experience a
problem with the brake pedal, brake calipers, or
any component of a Model Y braking system,
contact Tesla immediately.
Model Y 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 briefly flashes amber on
the
touchscreen when you first start Model
Y. If this indicator lights up at any other
time, an ABS fault has occurred and the ABS is not operating. Contact Tesla. The
braking system remains fully operational
and is not
affected by an ABS failure.
However, braking distances may increase. Drive cautiously and avoid heavy braking.
If the touchscreen displays this red brake
indicator at any time other than
briefly
when you first start Model Y, a brake
system fault is detected, or the level of the
brake
fluid is low. Contact Tesla
immediately. Apply steady pressure and
keep the brakes
firm to bring the vehicle to
a stop when safe to do so.
The touchscreen displays this amber brake
indicator if a brake booster fault is detected. Apply steady pressure and keep the brakes
firm to stop the vehicle when
safety permits. Hydraulic Boost
Compensation will be active (see
Hydraulic
Boost Compensation on page 66).
Emergency Braking
In an emergency, fully press the brake pedal and
maintain
firm pressure, even on low traction surfaces.
The ABS varies the braking pressure to each wheel according to the amount of traction available. This prevents wheels from locking and ensures that you stop as safely as possible.
WARNING: Do not pump the brake pedal. Doing so
interrupts operation of the ABS and can increase
braking distance.
WARNING: Always maintain a safe distance from
the vehicle in front of you and be aware of
hazardous driving conditions. While the ABS can
improve stopping distance, it cannot overcome the
laws of physics. It also does not prevent the
danger of hydroplaning (where a layer of water
prevents direct contact between the tires and the
road).
CAUTION: Automatic Emergency Braking (see
Automatic Emergency Braking on page 123) may
intervene to automatically brake in situations
where a collision is considered imminent.
Automatic Emergency Braking is not designed to
prevent a collision. At best, it can minimize the
impact of a frontal collision by attempting to
reduce your driving speed. Depending on
Automatic Emergency Braking to avoid a collision
can result in serious injury or death.
CAUTION: In emergency situations, if the brakes
are not functioning properly, press and hold the
Park button on the drive stalk to bring the vehicle
to a stop. Do not use this method to stop the
vehicle unless absolutely necessary.
Dynamic Brake Lights (if equipped)
If you are driving over 30 mph (50 km/h) and brake
forcefully
(or if Automatic Emergency Braking engages),
the brake lights
flash quickly to warn other drivers that
Model Y is rapidly slowing down. If Model Y stops
completely, the hazard warning lights
flash. Flashing
continues until you press the accelerator or manually press the hazard lights button to turn them
off (see
Hazard Warning Flashers on page 60).
NOTE: Dynamic brake lights will not flash while Track
Mode is enabled (see
Track Mode on page 74).
NOTE: When towing a trailer (if applicable), the brake
lights on the trailer also operate as described above,
even when the trailer is not equipped with a separate
braking system.
WARNING: When towing a trailer (if applicable),
always increase your following distance. Sudden
braking may result in skidding, jack-knifing, and
loss of control.
Brake Disc Wiping
To ensure brakes remain responsive in cold and wet
weather,
Model Y is equipped with brake disc wiping.
When cold and wet weather is detected, this feature repeatedly applies an imperceptible amount of brake
force to remove water from the surface of the brake discs.
Braking and Stopping
65Driving
4. Low Voltage Power (if equipped)5.
Ground
6.
Left Turn Signal and Brake Light
7.
Tail Lamps
Loss of trailer lights when towing may be the result of a
fault in the trailer wiring or excessive power
consumption by the lights connected to the trailer output(s). When this occurs, a red Trailer Mode icon
appears on the touchscreen. Fix any issues with the wiring and/or reduce the number of lights connected to the trailer output(s), then toggle Trailer Mode
off and on
again.
NOTE: Vehicles with a lead-acid low voltage battery
have auxiliary power. Vehicles with low voltage lithium-
ion batteries do not have auxiliary power at this time.
You can determine which battery your vehicle is
equipped with by touching
Controls > Software >
Additional Vehicle Information.
CAUTION: Always ensure that the trailer electrical
cable does not contact or drag on the ground and
there is enough slack in the cable to allow for
turns.
WARNING: Use only the electrical connections
designed by Tesla. Do not attempt to directly
splice or attempt to connect a trailer
NOTE: Depending on market region, vehicle
configuration, options purchased, and software version,
your vehicle may not be equipped with Autosteer, or the
feature may not operate exactly as described.
NOTE: Autosteer is a BETA feature.
Autosteer builds upon Traffic-Aware Cruise Control (see
Traffic-Aware Cruise Control on page 91), intelligently
keeping
Model Y in its driving lane when cruising at a set
speed.
Autosteer also allows you to use the turn signals
to move Model Y into an adjacent lane (see Auto Lane
Change on page 98). Autosteer detects lane markings
and the presence of vehicles and objects to
steer Model
Y.
NOTE: To display more details about the roadway and its
surroundings, such as road markings, stop lights, objects (such as trash cans and poles), etc., touch
Controls >
Autopilot > Full Self-Driving Visualization Preview (if
equipped).
CAUTION: Ensure all cameras and sensors (if
equipped) are clean. Dirty cameras and sensors, as
well as environmental conditions such as rain and
faded lane markings, affect performance.
WARNING: Autosteer is a hands-on feature. You
must keep your hands on the steering wheel at all
times.
WARNING: Autosteer is intended for use on
controlled-access highways with a fully attentive
driver. When using Autosteer, hold the steering
wheel and be mindful of road conditions and
surrounding traffic. Do not use Autosteer in
construction zones, or in areas where bicyclists or
pedestrians may be present. Never depend on
Autosteer to determine an appropriate driving
path. Always be prepared to take immediate
action. Failure to follow these instructions could
cause damage, serious injury or death.
Operating Autosteer
Before you can operate Autosteer, you must enable it by touching
Controls > Autopilot > Autosteer (Beta).
To indicate that Autosteer is available (but
not actively steering
Model Y), the top
corner of the touchscreen displays a gray
Autosteer icon
next to the driving gear.
To initiate Autosteer, move the drive stalk fully down
twice in quick succession.
To indicate that Autosteer is now actively
steering
Model Y, the touchscreen displays
the Autosteer icon in blue. When Autosteer is able to detect lane markings, it also
displays the driving lane in blue.
Autosteer briefly displays a message on the touchscreen
reminding you to pay attention to the road and be ready
to take over at any time.
The speed at which you can initiate Autosteer can vary depending on various conditions and whether or not a vehicle is detected ahead of you. When no vehicle is
detected ahead of you, you must be driving at least
18 mph (30 km/h), unless certain vehicle and
environmental conditions are met, in which case, you
may be able to initiate it at lower speeds. When a
vehicle is detected ahead of you, you can initiate
Autosteer at any speed, even when stationary, provided
Model Y is at least 5 feet (150 cm) behind the detected
vehicle.
NOTE: Auto High Beam is automatically enabled when
Autosteer is engaged and the maximum cruising speed is
85 mph (140 km/h).
CAUTION: If available in your market region, Model
Y detects lights from an emergency vehicle when
using Autosteer at night on a high speed road, the
driving speed is automatically reduced and the
touchscreen displays a message informing you of
the slowdown. You will also hear a chime and see a
reminder to keep your hands on the steering
wheel. When the light detections pass by or cease
to appear, Autopilot resumes your cruising speed.
Alternatively, you may tap the accelerator to
resume your cruising speed.
WARNING: Never depend on Autopilot features to
determine the presence of emergency vehicles.
Model Y may not detect lights from emergency
vehicles. Keep your eyes on your driving path and
always be prepared to take immediate action.
In situations where Autosteer is temporarily unavailable, the Autosteer icon disappears. For example, your driving speed is not within the speed required for Autosteer to operate. Autosteer may also be unavailable if it is not receiving adequate data from the camera(s).
NOTE: In low light conditions (dusk or dark), Autosteer
aborts or is unavailable if headlights are set to
Off. For
best results, set headlights to
Auto.
If unable to detect lane markings, Autosteer may determine the driving lane based on a vehicle you are
following.
In most cases, Autosteer attempts to center Model Y in
the driving lane. However, there may be situations in which Autosteer may steer
Model Y in a driving path
that is
offset from the center of the lane (for example,
detection of guard rails).
Autosteer
96MODEL Y Owner
In situations where Auto Lane Change is unable to operate at optimal performance, or cannot operate due to inadequate data, the
touchscreen displays a series of
warnings. Therefore, when using Auto Lane Change,
always pay attention to the
touchscreen and be
prepared to manually steer
Model Y.
Adjacent Lane Speed
NOTE: Depending on market region, vehicle
configuration, options purchased, and software version,
your vehicle may not be equipped with Adjacent Lane
Speed, or the feature may not operate exactly as
described.
When moving significantly faster than vehicles in
adjacent lanes,
Model Y automatically reduces the
driving speed. This is especially helpful in heavy
traffic
situations or when vehicles are constantly merging into
different lanes. When Model Y detects other vehicles
driving
significantly slower, the touchscreen highlights
the adjacent lanes with arrows and detected vehicles in gray, and
Model Y reduces the driving speed as
appropriate. To temporarily override this feature, press
the accelerator pedal.
WARNING: Never depend on Autopilot to
determine a safe driving speed; you are
responsible for driving safely and according to
traffic laws in your market region.
Stop Light and Stop Sign Warning
NOTE: Depending on market region, vehicle
configuration, options purchased, and software version,
your vehicle may not be equipped with Stop Light and
Stop Sign Warning, or the feature may not operate
exactly as described.
While Autosteer is in use, Model Y displays a warning on
the
touchscreen and sounds a chime if it detects that
you are likely to run through a red stop light or stop sign. If this happens,
TAKE IMMEDIATE CORRECTIVE
ACTION!
The visual and audible warnings cancel after a few seconds, or when you press the brake pedal, whichever
comes
first.
Stop Light and Stop Sign Warning provides warnings
only. It does not slow down or stop
Model Y at red traffic
lights, stop signs, road markings, etc. If equipped with
Traffic Light and Stop Sign Control, you can enable this
feature to automatically stop Model Y at traffic lights
and stop signs (see Traffic Light and Stop Sign Control
on page 104).
CAUTION: Stop Light and Stop Sign Warning
requires on-board maps to know that a particular
stop light or stop sign exists at a location. In some
cases, map data is inaccurate or outdated and may
not include all stop lights or stop signs. Therefore,
Stop Light and Stop Sign Warning may not detect
all stop lights and stop signs.
WARNING: The Stop Light and Stop Sign Warning
feature does not apply the brakes or decelerate
Model Y and may not detect all stop lights and
stop signs. Stop Light and Stop Sign Warning is
designed for guidance purposes only and is not a
substitute for attentive driving and sound
judgment. Keep your eyes on the road when
driving and never depend on Stop Light and Stop
Sign Warning to warn you of a stop light or stop
sign.
WARNING: Stop Light and Stop Sign Warning is
designed to warn you only when approaching a
visible red stop sign, solid red or later portion of a
yellow traffic light. It may not warn you of
intersections with flashing lights and it does not
warn you of yield signs or temporary stop and
yield signs (such as those used in construction
areas). Additionally, Stop Light and Stop Sign
Warning does not warn you of approaching stop
lights or stop signs when you are pressing the
accelerator pedal or brake pedal (which disables
Autosteer).
Limitations
Autosteer and its associated functions are particularly
unlikely to operate as intended when:
Stop Signs and Road Markings
When driving with Autosteer or Traffic-aware Cruise Control engaged, and Traffic Light and Stop Sign Control
enabled,
Model Y is designed to respond as follows when approaching intersections controlled by stop signs, stop
lines, or road markings:
Type of IntersectionVehicle Intended Response
No Traffic Control
Arm of T-junction
Model Y assumes the right of way and continues straight without slowing down or
stopping.
End of T-junction
If Model Y detects a T-junction based on the map data, Model Y slows down and
comes to a complete stop at the red stop line displayed on the
touchscreen. When
you want to proceed, you must take over steering and acceleration.
WARNING: Model Y may not stop at a T-junction that does not have a stop
sign or stop line, or if the T-junction is not included in the map data. Drive
attentively and be prepared to stop (when necessary and/or appropriate).
Stop Sign
Model Y slows down and comes to a complete stop at the red stop line displayed on
the
touchscreen. When you want to proceed through the intersection, you must
press down on the drive stalk or briefly press the accelerator pedal.
NOTE: If you confirm that you want to proceed through an intersection controlled by
a stop sign by
pressing down on the drive stalk or briefly pressing the accelerator
pedal before
Model Y has stopped, your confirmation is ignored. Model Y is not
designed to proceed through a stop sign without stopping.
NOTE: Even when using Autosteer, and even if you have engaged a turn signal, you
must turn the
steering wheel yourself (which cancels Autosteer) to complete a turn
at an intersection.
Traffic Light and Stop Sign Control
108MODEL Y Owner
Type of IntersectionVehicle Intended Response
Stop Sign and Road Marking
Road Marking
WARNING: Model Y also slows down and stops at a roundabout. You must take over steering (which cancels
Autosteer) and press down on the drive stalk or briefly press the accelerator pedal to confirm that you want to
continue through the roundabout.
WARNING: At crosswalks, Model Y may slow down and may stop, depending on whether the crosswalk is
controlled by a traffic light and whether the cameras detect pedestrians, bicyclists, etc. in the crosswalk. Pay
particular attention at crosswalks and be prepared to take over at any time. Failure to do so can result in injury
or death.
Limitations
Depending on many different circumstances and environmental conditions, Traffic Light and Stop Sign Control may
or may not stop at:
When a tire set becomes worn, replace all four tires at
the same time. Choose a Tesla-approved tire which is
designed
specifically for your vehicle. Most Tesla-
approved tires can be
identified with a Tx specification
(for example, T0, T1, T2). Tesla-approved tires are
designed to reduce road noise and optimize handling, ride, and range. Contact Tesla Service for information.
If tires need to be replaced early, for example due to a
flat tire, we recommend replacing the tires in pairs
unless the other tires are within
2/32 in (1.5 mm) of tread
depth of the new tire. When replacing tires, it is important to match the brand and model of the older
tires. Always place a pair of new tires on the rear if all four tires are the same size. Always balance the wheel and tire after replacing a tire. Consult with a professional tire retailer and installer for further guidance.
If you
replace your tires or install different ones, reset the tire
configuration (see Tire Configuration on page 188). This
resets the learned tire settings and improves the driving
experience on your new tires.
NOTE: Regardless of the number of tires replaced, a
complete set of matching tires is recommended for optimum performance.
If tires other than those specified are used, ensure that
the load and speed ratings marked on the tire
(see
Understanding Tire Markings on page 216) equal or
exceed those of the original
specification.
For the specification of the original wheels and tires
installed on
Model Y, see Wheels and Tires on page 215.
If you replace a wheel, the TPMS (Tire Pressure Monitoring System) sensors need to be reset to ensure they provide accurate warnings when tires are
under-
inflated (see Automatic Reset of TPMS Sensors on page
188).
NOTE: Installing winter tires with aggressive compound
and tread design may result in temporarily-reduced regenerative braking power. However, your vehicle is
designed to continuously recalibrate itself, and after changing tires it will increasingly restore regenerative
braking power after some moderate-torque straight-line accelerations. For most drivers this occurs after a short period of normal driving, but drivers who normally accelerate lightly may need to use slightly harder accelerations while the recalibration is in progress. Go to
Service > Wheel & Tire Configuration > Tires to select
winter tires and quicken this process.
WARNING: For your safety, use only tires and
wheels that match the original specification. Tires
that do not match the original specification can
affect the operation of the TPMS.
WARNING: Never exceed the speed rating of your
vehicle
Cautions for Exterior CleaningCAUTION: Do not wash in direct sunlight.CAUTION: Do not use windshield treatment fluids.
Doing so can interfere with wiper friction and
cause a chattering sound.
CAUTION: Do not use hot water, detergents, or
highly alkaline or caustic cleaning products,
especially those containing hydroxide.
CAUTION: If using a pressure washer, maintain a
distance of at least 12" (30 cm) between the
nozzle and the surface of Model Y. Avoid aiming
the water jet directly at parking sensors (if
equipped). Keep the nozzle moving and do not
concentrate the water jet on any one area.
CAUTION: Do not aim water hoses directly at
windows, door, or hood seals or at electronic
modules or exposed cabling.
CAUTION: To avoid corrosive damage that may
not be covered by the warranty, rinse away any
road salt from the underside of the vehicle, wheel
wells, and brakes. After cleaning the vehicle, dry
the brakes by going on a short drive and applying
the brakes multiple times.
CAUTION: Avoid using tight-napped or rough
cloths, such as washing mitts. A high-quality
microfiber cleaning cloth is recommended.
CAUTION: If washing in an automatic car wash, use
touchless car washes only. These car washes have
no parts (brushes, etc.) that touch the surfaces of
Model Y. Some touchless car washes use caustic
solutions that, over time, can cause discoloration
of decorative exterior trim. Avoid exposure to
soaps and chemicals above pH 13. If unsure, check
the product label or ask the staff at the car wash.
Damage caused by improper washing is not
covered by the warranty.
CAUTION: If washing in an automatic car wash,
make sure the vehicle is locked. In addition, avoid
using controls on the touchscreen that can result
in accidentally opening doors or trunks while the
vehicle is being washed. Any damage caused is
not covered by the warranty.
CAUTION: Ensure the wipers are off before
washing Model Y to avoid the risk of damaging the
wipers.
CAUTION: Do not use chemical based wheel
cleaners or pre-wash products. These can damage
the finish on the wheels.
WARNING: Never spray liquid at a high velocity
(for example, if using a pressure washer) towards
the charge port while Model Y is charging. Failure
to follow these instructions can result in serious
injury or damage to the vehicle, charging
equipment, or property.
Cleaning the Interior
Frequently inspect and clean the interior to maintain its
appearance and to prevent premature wear. If possible,
immediately wipe up spills and remove marks. For
general cleaning, wipe interior surfaces using a soft cloth (such as
microfiber) dampened with a mixture of warm
water and mild non-detergent cleaner (test all cleaners on a concealed area before use). To avoid streaks, dry immediately with a soft lint-free cloth.
Interior Glass
Do not scrape, or use any abrasive cleaning fluid on
glass or mirrored surfaces. This can damage the
reflective surface of the mirror and the heating elements
in the rear window.
Airbags
Do not allow any substance to enter an airbag cover. This could
affect correct operation.
Dashboard and Plastic Surfaces
Do not polish the upper surfaces of the dashboard. Polished surfaces are
reflective and could interfere with
your driving view.
Seats
Wipe spills and chemical residues from interior surfaces as soon as possible using a soft cloth moistened with warm water and non-detergent soap. Wipe gently in a circular motion. Then wipe dry using a soft, lint-free cloth.
Although seating surfaces are designed to repel stains, Tesla recommends regular cleaning to maintain
performance and an as-new appearance. Promptly treat
dye transfer from clothing, such as indigo-dyed denim.
Avoid contact with harsh chemicals, including certain cosmetics. Never use cleaners containing alcohol or bleach. Spot-test cleaners on an inconspicuous area
before applying to visible surfaces.
Vacuum cloth seats as needed to remove any loose dirt.
CAUTION: Aftermarket, non-Tesla seat covers may
inhibit the sensitivity of a seat