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 yellow 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 yellow 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 61).
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).
NOTE: Automatic Emergency Braking (see Automatic
Emergency Braking on page 118) 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.
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.
Hydraulic Fade Compensation
Model Y is also equipped with hydraulic fade
compensation. This feature assists in monitoring brake system pressure and ABS activity for instances of reduced brake performance. If reduced brake
performance is detected (for example, as a result of
brake fade, or cold or wet conditions), you may hear a sound, feel the brake pedal pull away from your foot, and notice a strong increase in braking. Brake as you
normally would and continue to press the brake pedal
without releasing or "pumping".
CAUTION: If brakes are not functioning properly,
stop the vehicle when 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 exercise
caution when driving conditions are hazardous.
Brake disc wiping and hydraulic fade
compensation is not a substitute for adequately
applying the brakes.
Braking and Stopping
60MODEL Y Owner
Maintaining Tire Pressures
If you are not towing a trailer, keep tires inflated to the
pressures shown on the Tire and Loading Information label, even if it
differs from the pressure printed on the
tire itself. The Tire and Loading Information label is located on the center door pillar and is visible when the
front door is open.
If you are towing a trailer, do not use the tire pressures printed on the Tire and Loading Information Label.
Instead, refer to the tire pressures published in the towing topic
(see Towing and Accessories on page 74).
NOTE: If your Model Y is fitted with Tesla accessory
wheels or tires, some information may be
different from
the labels on the vehicle.
The Tire Pressure indicator light on the
touchscreen alerts you if one or more tires
is
under-inflated.
After inflating the tire to the recommended pressure,
you must drive over
15 mph (25 km/h) for a short
amount of time to activate the Tire Pressure Monitoring
System (TPMS), which turns
off the Tire Pressure
indicator light.
If the indicator light flashes for one minute whenever
you power on
Model Y, a fault with the TPMS is detected
(see
TPMS Malfunction on page 170).
NOTE: Display tire pressures in the "Cards" area, located
toward the bottom on the left side of the touchscreen
,
as described in Touchscreen Overview on page 4. You
can also choose whether you want to display tire pressures using Bar or PSI by touching
Controls >
Display > Tire Pressure.
WARNING: Under-inflation is the most common
cause of tire failures and can cause a tire to
overheat, resulting in severe tire cracking, tread
separation, or blowout, which causes unexpected
loss of vehicle control and increased risk of injury.
Under-inflation also reduces the vehicle
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
169).
For the specification of the original wheels and tires
installed on
Model Y, see Wheels and Tires on page 189.
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.
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
1. Place the curved part of the lug nut cover tool (located in the glovebox for some vehicles, or you can use a small allen wrench) into the lowered
perimeter around the middle of the lug nut cover.
NOTE: The lug nut cover tool can also be purchased
at an auto parts store or through online retailers.
2.
Twist the lug nut cover tool so that the end of the curved part is facing away from the Tesla "T".
3.
Firmly pull the lug nut tool away from the wheel until the lug nut cover is released.
To install the lug nut cover:
1.
Align the lug nut cover into position.
2.
Push firmly on the lug nut cover until it fully snaps
into place.
CAUTION: Make sure the lug nut cover is fully
secure before driving to prevent it from falling
off.
Tire Pressure Monitoring
Each tire should be checked monthly when cold and
inflated to the recommended pressures that are printed
on the Tire and Loading Information label located on the
driver
4.
While tilting the top of the license plate bracket away
from the bumper (to prevent adhering it to the wrong
location), align the bottom center of the license plate bracket with the middle of the grille as shown.
NOTE: Be as precise as possible when aligning the
bracket because you will be unable to reposition it once adhered to the bumper.
5.
While correctly aligned, move the top of the bracket
against the bumper and apply pressure so that it is held in place by the adhesive.
6. Remove the remaining tape from the sides of the
bracket then press the entire bracket
firmly against
the bumper, ensuring the bracket is held in place by
all adhesive areas.
7.
Once the bracket is securely mounted, use the four supplied screws to attach your license plate to the bracket (tighten to 3 Nm/2.2 ft-lbs).Parts and Accessories
180MODEL Y Owner
Wheel Specifications (Factory)
Wheel DiameterLocationWidth (in)Offset (mm)19"Front/Rear9.54520"Front/Rear9.54521"Front9.54021"Rear10.548Lug Nut Torque129 lb. ft (175 Nm)Lug Nut Socket Size21 mm
NOTE: For instructions on how to jack/lift Model Y, see Jacking and Lifting on page 178.
Tire Specifications (Factory)
Tire SizeLocationSize19"Front/Rear255/45R1920"Front/Rear255/40R2021"Front255/35R2121"Rear275/35R21Tire pressures vary depending on the type of tires fitted. Refer to the tire pressures printed on the Tire and
Loading Information label. This label is located on the center door pillar and is visible when the
driver
8Load range. Shown as Standard Load (SL) or Extra Load (XL), the load range determines how much weight
your tires can support at a
specified tire pressure. When replacing tires, only use tires of the same load range. If
towing with snow tires, ensure they are the same load range of the tires your vehicle came equipped with.
9Tire composition and materials. The number of plies in both the tread area and the sidewall area indicates how
many layers of rubber coated material make up the structure of the tire. Information is also provided on the type of materials used.10Maximum tire load. The maximum load which can be carried by the tire.11Maximum permissible inflation pressure. This pressure should not be used for normal driving.12U.S. DOT Tire Identification Number (TIN). Begins with the letters DOT and indicates that the tire meets all
federal standards. The next 2 digits/letters represent the plant code where it was manufactured, and the last 4 digits represent the week and year of manufacture. For example, the number 1712 is used to represent the 17th week of 2012. The other numbers are marketing codes used at the manufacturer
Tire and Loading Glossaries
General Wheel and Tire Terms
Accessory WeightThe combined weight (in excess of those items replaced) of items available as factory
installed equipment.BeadThe inner edge of a tire that is shaped to fit to the rim and form an air tight seal. The
bead is constructed of steel wires which are wrapped, or reinforced, by the ply cords.Cold Tire PressureThe air pressure in a tire that has been standing in excess of three hours, or driven for less than one mile.Curb WeightThe weight of a standard vehicle, including any optional equipment fitted, and with the
correct
fluid levels.
Gross Vehicle WeightThe maximum permissible weight of a vehicle with driver, passengers, load, luggage, and
equipment.kPa (kilo pascal)A metric unit used to measure pressure. One kilo pascal equals approximately 0.145 psi.Maximum Inflation
Pressure
The maximum pressure to which the tire should be inflated. This pressure is given on the
tire side wall in psi (lbf/in2).
CAUTION: This pressure marked on the tire is the maximum allowed by the tire
manufacturer. It is not the pressure Tesla recommends using for Model Y.
Maximum Loaded
Vehicle WeightThe sum of curb weight, accessory weight, vehicle capacity weight, and production options weight.Production Options
WeightThe combined weight of options installed which weigh in excess of 3 lb (1.4 kg) more
than the standard items that they replaced, and are not already considered in curb or
accessory weights.PSI (lbf/in2)Pounds per square inch (the unit used to measure tire pressure).Recommended Tire
Inflation Pressure
Tire inflation pressure, established by Tesla, which is based on the type of tires that are
mounted on the vehicle at the factory. This information can be found on the Tire and
Loading Information label located on the door pillar.RimThe metal support for a tire, or tire and tube, upon which the tire beads are seated.Vehicle Capacity
WeightThe number of seats multiplied by 150 lbs (68 kg) plus the rated amount of load/luggage.
Load Carrying Definitions
Normal occupant weight68 kilograms (150 lbs) times the number of occupants specified in the second column
of the tables for calculating load limits (see
Vehicle Loading on page 182).
Occupant distributionDistribution of occupants in a vehicle.Passenger car tireA tire intended for use on passenger cars, multipurpose passenger vehicles, and trucks, that have a gross vehicle weight rating (GVWR) of 10,000 lbs (4536 kg) or less.Rim diameterNominal diameter of the bead seat.Rim size designationRim diameter and width.Rim type designationThe manufacturing industry