Maintaining Tire Pressures
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.
The Tire Pressure indicator
light on the instrument panel alerts you if one or
more tires is under- or over-inflated.
The Tire Pressure indicator light does not immediately turn off when you adjust tire pressure. After inflating the tire to the
recommended pressure, you must drive over
15 mph (25 km/h) for more than 10 minutes 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 S, a fault with
the TPMS is detected (see TPMS Malfunction on page 192).
You can display tire pressures on the touchscreen by opening Controls > Service.
You can also choose whether you want to
display tire pressures using Bar or PSI by opening
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
Load ratingThe maximum load that a tire is rated to carry for a given inflation pressure.Maximum load
ratingThe load rating for a tire at the maximum permissible inflation pressure
for that tire.Measuring rimThe rim on which a tire is fitted for physical dimension requirements.Open spliceAny parting at any junction of tread, sidewall, or inner liner that extends
to the cord material.Outer diameterThe overall diameter of an inflated new tire.Overall widthThe linear distance between the exteriors of the sidewalls of an inflated tire, including elevations due to labeling, decorations, or protective bands
or ribs.PlyA layer of rubber-coated parallel cords.Ply separationA parting of rubber compound between adjacent plies.Pneumatic tireA mechanical device made of rubber, chemicals, fabric and steel or other
materials, that, when mounted on an automotive wheel, provides the
traction and contains the gas or
fluid that sustains the load.
Radial ply tireA pneumatic tire in which the ply cords that extend to the beads are laid
at substantially 90 degrees to the center line of the tread.Reinforced tireA tire designed to operate at higher loads and at higher inflation pressures than the corresponding standard tire.Section widthThe linear distance between the exteriors of the sidewalls of an inflated tire, excluding elevations due to labeling, decoration, or protective bands.SidewallThe portion of a tire between the tread and bead.Sidewall
separationThe parting of the rubber compound from the cord material in the
sidewall.Snow tireA tire that attains a traction index equal to or greater than 110, compared
to the ASTM E1136-93 (re-approved 2003, incorporated by reference, see
