2021 TESLA MODEL Y brake

When using Auto Lane Change, it is important to monitor its performance by watching the driving path in front of you and the surrounding area. Stay prepared to take over steering at any time. As you are crossing over into the adjacent lane, the
touchscreen displays the
location in the lane that
Model Y is moving into.
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.
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 makes no attempt to slow down or stop
Model Y
at red traffic lights, stop signs, road markings, etc. If your
vehicle is 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 99).
NOTE: Touch Controls > Autopilot > Full Self-Driving
Visualization Preview (if equipped) to display more
details about the roadway and its surroundings, such as road markings, stop lights, objects (such as trash cans
and poles), etc.
CAUTION: Stop Light and Stop Sign Warning
requires the vehicle

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
Y so you can anticipate whether any action is
required.
Forward Collision Warning operates only when driving between approximately
3 mph (5 km/h) and 90 mph
(150 km/h).
WARNING: Forward Collision Warning does not
provide a warning when the driver is already
applying the brake.
Automatic Emergency Braking
Model Y is designed to determine the distance from a
detected object traveling in front of it. When a frontal collision is considered unavoidable, Automatic Emergency Braking is designed to apply the brakes to
reduce the vehicle

NOTE: When Chill is selected, Chill displays on the
touchscreen above the driving speed.
Steering Mode: Adjust the amount of effort required to
turn the steering wheel.
Sport feels more responsive
whereas
Comfort feels easier to drive and park (see
Adjusting Steering Effort on page 47).
Stopping Mode: Choose how you want Model Y to
behave once regenerative braking has reduced the driving speed to a very low speed, a driving gear is still
engaged, and both the accelerator and brake pedals are
released. See
Stopping Mode on page 61. You can adjust
this setting only when
Model Y is in Park.
Slip Start: Turn Slip Start ON to disable traction control
and allow wheels to spin to make it easier to dislodge the vehicle when stuck in mud, snow, ice, etc. (see
Traction Control on page 63).
Off-Road Assist: Turn Off-Road Assist ON to disable
traction control and allow wheels to spin when driving
off-road (see Traction Control on page 63).
Trailer Mode (available only if equipped with a tow
package): Must always be active when towing a trailer.
Some Autopilot features and rear sensor functionality may not be available. See
Trailer Mode on page 76).
Autopilot
Autopilot features that provide a safer and more
convenient driving experience. Some Autopilot features
are not controlled through
Controls. See About
Autopilot on page 83 for more information.
NOTE: Depending on market region, vehicle
configuration, options purchased, and software version,
your vehicle may not be equipped with all Autopilot
features, or a feature may not operate exactly as
described.

*If the vehicle is used for towing, the brake fluid should
be replaced every 2 years regardless of the health check.
NOTE: Any damage caused by opening the Battery
coolant reservoir is excluded from the warranty.
High Voltage Safety
Your Model Y has been designed and built with safety as
a priority. However, be aware of these precautions to protect yourself from the risk of injury inherent in all high-voltage systems:

Cleaning the Exterior
To prevent damage to the paint, immediately remove
corrosive substances (bird droppings, tree resin, dead insects, tar spots, road salt, industrial fallout, etc.). Do not wait until
Model Y is due for a complete wash. If
necessary, use denatured alcohol to remove tar spots
and stubborn grease stains, then immediately wash the area with water and a mild, non-detergent soap to remove the alcohol.
Keep the exterior cameras free of dirt, condensation, or obstructions. These substances can cause unclear pictures or Autopilot and safety features to stop working (see
Cleaning a Camera on page 172).
Follow these steps when washing the exterior of Model
Y:
1.
Rinse Thoroughly
Before washing, flush grime and grit from the vehicle
using a hose. Flush away accumulations of mud in
areas where debris easily collects (such as wheel wells and panel seams). If salt has been used on the highways (such as during winter months), thoroughly
rinse all traces of road salt from the underside of the
vehicle, wheel wells, and brakes.
2.
Hand Wash
Hand wash Model Y using a clean soft cloth and cold
or lukewarm water containing a mild, high-quality car
shampoo.
CAUTION: Some cleaners and car shampoos
contain chemicals that can cause damage or
discoloration, especially to plastic trim pieces,
lamps, or camera lenses. For example, some car
cleaning formulas contain hydroxide or other
highly alkaline or caustic ingredients that can
damage exterior components. Damage or
discoloration resulting from cleaning products
is not covered by the warranty.
3.
Rinse with Clean Water
After washing, rinse with clean water to prevent soap from drying on the surfaces.
4.
Dry Thoroughly and Clean Exterior Glass
After washing and rinsing, dry thoroughly with a chamois. If necessary, dry the brakes by going on a
short drive and applying the brakes multiple times.
Clean windows and mirrors using an automotive glass cleaner. Do not scrape, or use any abrasive cleaning
fluid on glass or mirrored surfaces.
Car Wash Mode
When taking Model Y to a car wash, Car Wash Mode
closes all windows, locks the charge port door, and disables windshield wipers, Sentry Mode, walk-away door locking, and parking sensor chimes. To enable, touch
Controls > Service > Car Wash Mode. Your vehicle
must be in Park and not actively charging.
If using an automatic car wash, Enable Free Roll keeps
your vehicle in Neutral and prevents
Model Y from
applying the Parking brake if you leave the driver

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 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.
If equipped with polyurethane seats, be careful with dyes, such as from clothing or denim, that come into contact with the seats. Over time, dyes can
diffuse into
the seat material and cause staining.
Vacuum cloth seats as needed to remove any loose dirt.
CAUTION: Aftermarket, non-Tesla seat covers may
inhibit the sensitivity of a seat

Removing the Maintenance Panel
To check fluid levels, remove the maintenance panel:
1.
Open the hood.
2.
Pull the maintenance panel upward to release the clips that hold it in place.
3.
If checking the Battery coolant, remove the cabin intake trim panel by pulling it upwards to release the clips that hold it in place.
CAUTION: The maintenance panel protects the
front trunk from water. When re-attaching, make
sure it is fully seated.
Checking Battery Coolant
Your Battery coolant should not need to be replaced for
the life of your vehicle under most circumstances. However, if the quantity of
fluid in the cooling system
drops below the recommended level, the
touchscreen
displays a warning message. Stop driving Model Y as
soon as safety permits and contact Tesla.
Fluid Level Check
DO NOT REMOVE THE FILLER CAP AND DO NOT ADD
FLUID. Doing so can result in damage not covered by
the warranty.
Do Not Top Up Battery Coolant
WARNING: Battery coolant can be hazardous and
can irritate eyes and skin. Under no circumstances
should you remove the filler cap and/or add
coolant. If the touchscreen warns you that the fluid

level is low, contact Tesla immediately.
To maximize the performance and life of the Battery, the
cooling system uses a
specific mixture of G-48 ethylene-
glycol coolant (HOAT). Contact Tesla for more
specific

information about the coolant.
Checking Brake FluidWARNING: Contact Tesla immediately if you notice
increased movement of the brake pedal or a
significant loss of brake fluid. Driving under these
conditions can result in extended stopping
distances or complete brake failure.
A red brake indicator on the touchscreen
alerts you if the quantity of fluid in the
brake reservoir drops below the
recommended level. If it displays while driving, stop as soon as safety permits by
gently applying the brakes. Do not
continue driving. Contact Tesla
immediately.
Topping Up the Brake Fluid
Do not top up your brake fluid. The following
instructions are provided for information purposes and future reference only:
1.
Clean the filler cap before removing it to prevent dirt
from entering the reservoir.
2.
Unscrew the cap and remove it.
3.
Top up the reservoir to the MAX mark using the
appropriate brake
fluid.
4.
Replace the filler cap, ensuring it is fully secured.
WARNING: Only use new fluid from a sealed air-
tight container. Never use previously used fluid or
fluid from a previously opened container

Motor Type(s)
Rear motor: AC permanent magnet synchronous motor, liquid-cooled, with variable frequency drive.
Front motor (AWD vehicles): AC induction motor, liquid-cooled, with variable frequency drive.
Transmission
TypeSingle speed fixed gearGearbox Ratio9:1
Steering
SteeringSpecificationsTypeRack and pinion with electronic power steering, speed sensitiveNumber of turns lock to lock2.00Turning Circle (curb to curb)39.8 ft (12.1 m)
Brakes
Type4-wheel anti-lock braking system (ABS) with Electronic Brake Force Distribution, Integrated Advanced Stability Control and Electronic Accelerator
pedal actuated regenerative braking systemCalipers
Front: Four piston fixed
Rear: Integrated Electronic Parking Brake Sliding
Rotor Diameter (ventilated)
Front (non-Performance): 14.0"/355 mm
Front (Performance): 14.0"/355 mm
Rear (non-Performance): 13.2"/335 mm
Rear (Performance): 13.2”/335 mm
Front Rotor thickness
New (non-performance): 0.98"/25 mm
New (performance): 1.06" / 27 mm Service limit (non-performance): 0.91”/23 mmService limit (performance): 0.98" / 25 mm
Rear Rotor thickness
New (non-performance): 0.79"/20 mm
New (performance): 0.87" / 22 mm Service limit (non-performance): 0.71”/18 mm
Service limit (performance): 0.79" / 20 mm
Subsystems
187Specifications