Page 183 of 298

WARNING: When lifting out the lead-acid
battery, stand in front of the vehicle and use
proper lifting technique. The lead-acid battery
weighs approximately 25 lb (12 kg). Failure to
do so may cause serious injury.
11.
Inspect the new lead-acid battery to ensure it has a
red plug in the casing on the positive (+) terminal
side. If the new lead-acid battery does not have a red plug, use a small trim tool to transfer the red plug
from the old battery to the new one.
CAUTION: Dispose of the old lead-acid battery
according to local laws, such as dropping it off
at a battery recycling facility. Keep the lead-
acid battery upright and place it on a towel or
piece of cardboard when transporting it.
Installation:
1. Carefully maneuver the new lead-acid battery into
place, taking care not to touch or damage nearby
components.2.
Install the lead-acid battery hold down and use a 10mm socket to tighten the nut that secures it to the 12V battery. Torque the nut to 6 Nm (4.4 ft-lb).
3.
Reconnect the first responder loop.
4.
Remove the protective caps from the positive (+) and negative (-) posts on the new low voltage lead-acid battery.
5.
Connect the positive (+) terminal by positioning the
clamp over the positive (+) post. Using a 10mm socket, torque the nut to 6 Nm (4.4 ft-lb).
Maintenance Service Intervals
181Maintenance
Page 185 of 298
d. Route the hose so that it is secured by the tab.e.
Use a 10mm socket to install the bolt that attaches the washer
fluid reservoir neck to the underhood
storage unit. Torque the bolt to 5 Nm (3.7 ft-lb).
11.
Replace the underhood apron by aligning the clips into their openings in the front trunk. Press down to lock them in place. The clips make an audible clicking
sound when secured.
12.
Close the front trunk. If an alert to replace the low-
voltage battery was previously shown on the
touchscreen, ensure the alert no longer appears.
Maintenance Service Intervals
183Maintenance
Page 186 of 298
Displaying Tire Pressures
Tire pressures display on the touchscreen in the cards
area on the car status display, or by touching Controls >
Service. The pressure of each tire displays in the
visualization of your
Model Y, in addition to what time
your tire pressures were last measured. You can choose
whether you want to display tire pressures using Bar or PSI by touching
Controls > Display > Tire Pressure. The
touchscreen also displays your vehicle
Page 188 of 298

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
Page 198 of 298
3. Lift the wiper arm a short distance away from the windshield, just far enough to access the wiper blade.CAUTION: Wiper blades do not lock into a lifted
position. Do not lift a wiper arm beyond its
intended position.
4.
Place a towel between the wiper arm and windshield to avoid scratching or cracking the windshield.
5.
Hold the wiper arm and press the locking tab while sliding the blade down the arm.
6.
Align the new wiper blade on the wiper arm and slide
it toward the end of the wiper arm until it locks into place.
7.
Turn Wiper Service Mode off to return the wipers to
their normal position.
Cleaning Washer Jets
If a windshield washer becomes blocked, use a thin
strand of wire to clear any blockages from the nozzles.
WARNING: Do not operate the washers while
cleaning Model Y. Windshield washer fluid can
irritate eyes and skin. Read and observe the
washer fluid manufacturer
Page 201 of 298

Replacing the Low Voltage Lead-Acid Battery
This procedure is intended for vehicles in North America
only.
CAUTION: To avoid damage that is not covered by
the warranty, replace your low voltage lead-acid
battery with the same type of battery. The low
voltage lead-acid battery for North American
vehicles is AtlasBX / Hankook 85B24LS 12V 45Ah.
You can purchase a new lead-acid low voltage
battery that is compatible with your vehicle from
your local service center.
Perform the following procedure to replace the lead-acid low voltage battery. Wear appropriate personal protection equipment (such as safety glasses, leather gloves when handling the lead-acid battery, etc.).
Removal:
1.
Prepare the vehicle to remove the low voltage lead-
acid battery:
a.
Ensure the vehicle is in Park.
b.
Lower all windows.
c.
Open the front trunk.
d.
Leave a door propped open so you can get back
into the vehicle if needed.
e.
Disconnect the charge cable from the charge port.
2.
In the front trunk, remove the vehicle
Page 208 of 298
Learn how to perform simple Do It Yourself procedures, such as replacing wiper blades and cabin filters, or installing
the paint protection
film kit. See https://service.tesla.com/docs/Public/diy/index-model-y.html for instructions,
animations, and videos of these procedures.
NOTE: Due to market region or vehicle configuration specifics, some parts and procedures may not be available for
your vehicle. When navigating to
http://www.tesla.com, select your region and language to see an updated list of
parts and accessories available for your region.
CAUTION: Perform each procedure in this guide in
a dry and well-lit area. For your safety, only
perform a procedure if you feel comfortable doing
so, and always follow all provided instructions.Do It Yourself Maintenance
206MODEL Y Owner
Page 216 of 298

Lateral runout
0.050 mm
Chordal runout
0.040 mm
Disk thickness variation (DTV)
0.010 mm
Front Brake Pad Thickness (excluding back plate)
New: 0.393"/10 mm
Service limit: 0.085"/2.15 mm
Rear Brake Pad Thickness (excluding back plate)
New: 0.354"/9 mm
Service limit: 0.078"/2 mm
Performance Front Brake Pad
Thickness (excluding back plate)New: 0.393"/10 mm Service limit: 0.085"/2.15 mmPerformance Rear Brake Pad
Thickness (excluding back plate)New: 0.354"/ 9 mm Service limit: 0.071"/1.8 mmParking brakeElectrically actuated parking brake integrated into rear caliper
Suspension
SuspensionSpecificationsFrontIndependent, double wishbone, coil spring/telescopic damper, sway barRearIndependent, multi-link, coil spring/telescopic damper
Battery - Low Voltage
Battery - Low VoltageSpecificationsRating33 amp hour or higherVoltage and PolarityLow voltage negative (-) ground
Battery - High Voltage
TypeLiquid-cooled lithium ion (Li-ion)Nominal Voltage345 V DCTemperature RangeDo not expose Model Y to ambient temperatures above 140