2021 TESLA MODEL S battery

About the Battery
Model S has one of the most sophisticated
battery systems in the world. The most
important way to preserve the Battery is to
LEAVE YOUR VEHICLE PLUGGED IN when
you are not using it. This is particularly important if you are not planning to drive
Model S for several weeks.
NOTE: When left idle and unplugged, your
vehicle periodically uses energy from the
Battery for system tests and recharging the
12V battery when necessary.
There is no advantage to waiting until the
Battery

CAUTION: If the Battery

2. While holding the public charging handle
in one hand and the adapter in the other
hand, press and hold the button on the
public charging handle and pull both
outwards, removing the handle and adapter at the same time.
NOTE: If the charging station handle
separates from the adapter, leaving the
adapter in
Model S, use the touchscreen
to unlock the charge port (touch the
charging icon on the overhead view of the
vehicle).
3.
Press and hold the charging handle button again to release the adapter from
the charging handle.
NOTE: The charge port automatically closes
within approximately 10 seconds of removing
the connector from the charge port.
CAUTION: Tesla strongly recommends leaving Model S plugged in when not in use. This maintains the Battery at the optimum level of charge.
Manually Releasing Charge
Cable
If the usual methods for releasing a charge
cable from the charge port (using the charge
handle release button, touchscreen, or mobile
app) do not work, carefully follow these steps:
1.
Ensure that Model S is not actively
charging by displaying the charging
screen on the touchscreen. If necessary,
touch
Stop Charging.
2.
Open the rear trunk.
3.
Pull the charge port

1.
Driving distance: Displays the total
estimated driving distance available.
2.
Set limit: Adjust the charge limit by
dragging the arrow below the battery to
indicate the level of charging you want.
The setting you choose applies to
immediate and scheduled charging
sessions.
NOTE: A portion of the battery image
may appear blue. This indicates that a
small portion of the energy stored in the
battery is not available because the
battery is cold. This is normal and no
reason for concern. When the battery warms up, the blue portion no longer displays.
3.
Stop charging: Touch to stop charging.
4.
Charge current at this location: The
current automatically sets to the
maximum current available from the
attached charge cable, unless it was previously reduced to a lower level. If
needed, touch
- or + to change the
current (for example, you may want to
reduce the current if you are concerned
about overloading a domestic wiring
circuit shared by other equipment). It is
not possible to set the charging current to
a level that exceeds the maximum
available from the attached charge cable.
When you change the current,
Model S remembers the location. If you charge at
the same location, you do not need to
change it again.
NOTE: If Model S is charging and detects
unexpected

NOTE: In addition to cooling the interior, the
air conditioning compressor also cools the
Battery. Therefore, in hot weather, the air
conditioning compressor can turn on even if
you turned it
off. This is normal because the
system

CAUTION: Do not use cutting pastes, color restoration compounds, or polishes containing harsh abrasives. These can scour the surface and permanently damage the paint.
CAUTION: Do not use chrome polish or other abrasive cleaners.
Using a Car Cover
To preserve the cosmetic appearance of the
body when Model S is not being used, use a
genuine Tesla car cover. Car covers can be
purchased from Tesla. See
Parts and Accessories on page 202.
CAUTION: Use only a Tesla-approved car cover when Model S is plugged in. Using a non-Tesla car cover can prevent the Battery from being adequately cooled during charging.
Floor Mats
To extend the life of your carpet and make
them easier to clean, use genuine Tesla floor
mats (see Parts and Accessories on page 202). Maintain floor mats by regularly
cleaning them and checking that they are
properly attached. Replace
floor mats if they
become excessively worn.
WARNING: To avoid potential interference with a foot pedal, ensure that the driver

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.
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 instrument panel displays a warning message. Stop driving Model S 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 instrument panel 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 Fluid
WARNING: 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 instrument panel 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.
Fluid Level Check
Tesla checks the brake fluid level and health
at the regularly scheduled maintenance intervals.
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

BrakesSpecificationsService limit: 1.02”/26 mmFront Brake Pad Thickness (excluding
back plate)New: 0.41”/10.5 mm (MIN)Service limit: 0.09”/ 2.3 mmRear Brake Pad Thickness (excluding
back plate)New: 0.33”/8.5 mm (MIN)Service limit: 0.11”/ 2.7 mmParking brakeElectrically actuated parking brake calipers
Suspension
SuspensionSpecificationsFrontIndependent, double wishbone, air spring with adaptive damper, stabilizer barRearIndependent, multi-link, air spring with adaptive damper, stabilizer bar
Battery - Low Voltage
Battery - Low VoltageSpecificationsRating6.9 amp hourVoltage15.5V
Battery - High Voltage
Battery - High VoltageSpecificationsTypeLiquid-cooled lithium ion (Li-ion)Nominal Voltage407 V DCTemperature RangeDo not expose Model S to ambient temperatures above 149