Tesla S Owner's Manual page 160

Warning: Road holding is seriously
impaired if the tires are incorrectly
installed on the wheels.
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's door pillar (see
Pressures on page 156). If your vehicle has
tires of a different size than the size indicated
on the vehicle placard or tire inflation pressure
label, determine the proper tire inflation
pressure for those tires.
As an added safety feature, your vehicle has
been equipped with a TPMS that displays a
tire pressure telltale (Tire Pressure Warning)
on the instrument panel when one or more of
your tires is significantly under- or over-
inflated. Accordingly, when the Tire Pressure
indicator light displays on the instrument
panel to alert you about tire pressure, stop
and check your tires as soon as possible, and
inflate them to the proper pressure (see
Maintaining Tire Pressures
Driving on a significantly under-inflated tire
causes the tire to overheat and can lead to tire
failure. Under-inflation also reduces range
efficiency and tire tread life, and may affect
the vehicle's handling and stopping ability.
If Model S detects a fault with the
TPMS, this indicator flashes for one
minute whenever you power on
Model S.
Note: Installing accessories that are not
approved by Tesla can interfere with the
TPMS.
Warning: The TPMS is not a substitute for
proper tire maintenance, including
manually checking tire pressures and
regularly inspecting the condition of tires.
It is the driver's responsibility to maintain
correct tire pressure, even if under- or
over-inflation has not reached the level
for the TPMS to trigger the Tire Pressure
Warning on the instrument panel.
Resetting the TPMS Sensors
After replacing one or more wheels (but not
after replacing a tire or rotating wheels), the
TPMS sensors need to be reset to ensure tire
pressure warnings are accurate.
Maintenance
Maintaining Tire
on page 156).
Tire Care and Maintenance
On newer versions of Model S, the TPMS
sensors are reset automatically after driving
over 15 mph (25 km/h) for longer than 10
minutes. But for older versions, follow these
steps:
1. Inflate all tires to their recommended
pressures, as indicated on the Tire and
Loading Information label located on the
door pillar.
2. Get ready to drive for ten minutes, then
touch Controls > Service > Reset TPMS.
3. Follow the onscreen instructions.
Caution: Selecting the incorrect wheel
size may result in false tire pressure
warnings. If a tire pressure warning
displays, exit the vehicle, close the
rear trunk and all doors, wait for the
touchscreen to go black, then re-
enter the vehicle and ensure that the
correct wheel size is selected before
touching Reset TPMS.
Note: On some older versions of Model S,
when changing to 21" wheels, the TPMS may
generate false tire pressure warnings. Bring
Model S to a Tesla Service Center for further
adjustment.
Warning: Do not reset the TPMS sensors
in an attempt to clear tire pressure
warnings.
Replacing a Tire Sensor
If the Tire Pressure warning indicator displays
frequently, contact Tesla to determine if a tire
sensor needs to be replaced. If a non-Tesla
Service Center repairs or replaces a tire, the
tire sensor may not work until Tesla performs
the setup procedure.
TPMS Malfunction
Model S has also been equipped with a TPMS
malfunction indicator to indicate when the
system is not operating properly.
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