The tire pressure monitoring system (TPMS)
has detected that the air pressure in one or
more of your tires is significantly lower than
the recommended cold pressure (RCP). This
recommended pressure is displayed on the
Tire and Loading information label.
You should pull over carefully as soon as
possible. In a safe location, check for a flat
tire.
You can request Tesla roadside assistance
options (mobile tire, loaner wheel, tow) if
required. See
for more information.
The alert will clear once the TPMS has a
consistent tire pressure measurement for
each of your tires within 3 psi of the
recommended cold pressure.
For more information on tire pressure,
inflation, and maintenance, see
.
(MCU_w010)
Air pressure below
recommendation for tires
Check pressure and refill air as
needed
This alert does NOT indicate that there is a
flat tire.
The tire pressure monitoring system (TPMS)
has detected that the air pressure in one or
more of your tires is at least 20% lower than
the recommended cold tire pressure. This
recommended pressure should be displayed
on the Tire and Loading information label.
Maintaining Tire Pressures on page 180
for detailed information on how to keep the
tires properly inflated.
This alert may appear in cold weather
because the tire pressure decreases when
cold.
• Although drops in tire pressure are
expected in colder weather, air should still
be added to maintain the recommended
cold tire pressure.
• The alert may clear as the vehicle is
driven. This is because the tires will warm
up and the tire pressure will increase.
◦
Even if the alert clears, the tires
should still be refilled with air once
they have cooled. The recommended
cold tire pressure should be
maintained.
If you repeatedly see this alert for the same
tire, have the tire inspected for a slow leak.
For more information on tire pressure and
inflation, see
(PCS_a053)
Charge speed reduced
Check for an extension cord or
bad utility wiring
Charging speed has been reduced because
the onboard charger in your vehicle has
detected a large voltage drop during
charging.
Likely causes of this issue include:
• Problems with the building wiring and/or
the wall outlet.
• An extension cord or other wiring that
cannot support the requested charge
current.
This issue can also result from turning on
electric devices that draw a lot of power from
the same branch circuit while the vehicle is
charging.
If this issue has occurred multiple times at
your normal charging location, contact an
electrician to inspect the electrical
installation. They should check the following:
• Any installed charging equipment and its
connection to the building wiring.
• The building wiring, including any wall
outlet used with a Mobile Connector.
• The electrical connection to the power
utility line where it enters the building.
Discuss with the electrician whether the
charge current on the vehicle should be
lowered, or if the installation should be
upgraded to support a higher charge current.
Troubleshooting Alerts
238
MODEL S OWNER'S MANUAL