Tesla X 2015 Owner's Manual page 86

Towing and Accessories
Tire Pressures when Towing
When towing a trailer, tire pressures must be adjusted to
accommodate the additional load. Keep tires inflated to
the pressures shown below (these pressures override the
pressures that are provided on the Tire and Loading
information label):
Front Tires Rear Tires
245/45R19 245/45R19
255/45R20 275/45R20
265/45R20
265/35ZR22 285/35ZR22
WARNING: Check tire pressures using an accurate
pressure gauge when tires are cold. Driving one
mile (1.6 km) warms the tires sufficiently to affect
tire pressures. Parking the vehicle in direct sunlight
or in hot weather can also affect tire pressures. If
you must check warm tires, expect increased
pressures. Do not let air out of warm tires in an
attempt to match recommended cold tire
pressures. A hot tire at or below the recommended
cold tire inflation pressure is dangerously under-
inflated.
WARNING: Never attempt to tow a trailer when a
Model X tire is faulty or has been inflated using a
tire repair kit. A temporarily repaired tire is not
designed to sustain the towing load. Towing using
a faulty or temporarily repaired tire can result in
tire failure and loss of vehicle stability.
Before Towing a Trailer
Before towing a trailer, you must do the following:
• Inflate tires to the cold tire inflation pressure
specified in Tire Pressures when Towing.
• Set Suspension to Standard height (touch Controls >
Suspension > Standard).
• Observe all regulations and legal requirements in
your state/region that apply to trailer towing. Failure
to comply with regulations can compromise your
safety.
• Adjust side mirrors to provide a clear rearward view
without a significant blind spot.
• Engage Trailer Mode (see
Confirm the following:
84
Cold Tire Inflation Pressure
45 psi (310 kPa)
46 psi (320 kPa)
50 psi (345 kPa)
Trailer Mode on page 84).
• Model X rests horizontally with the trailer attached. If
the vehicle is tipped up at the front, and down at the
rear, check that you are not exceeding the maximum
towing capacity and tongue loads provided in
Carrying Capacity.
• All trailer hitch parts and attachments , safety chains,
and electrical connectors are in good condition and
are properly connected. If any problems are apparent,
do not tow the trailer.
• Trailer lights (brake lights, turn signal lights, and
marker lights) are working properly.
• The trailer tongue is securely connected to the hitch
ball.
• Safety chains are properly connected between the
trailer and the tow vehicle. Cross the safety chains
under the tongue of the trailer to help prevent the
tongue from contacting the road if it separates from
the hitch. Leave enough slack in the safety chains to
allow for turns and ensure that the chains can never
drag on the ground.
• All cargo is secured.
• Wheel chocks are available.
• The trailer load is evenly distributed such that the
trailer tongue weight is approximately 10% of the
total trailer weight, without exceeding the maximum
tongue weights provided in Carrying Capacity.
• If the trailer is equipped with a separate braking
system, check that the brakes work and are properly
adjusted. To provide safe stopping ability, you must
balance the trailer brakes with the vehicle brakes.
NOTE: For general information about trailer safety
provided by the National Highway Traffic Safety
Administration, go to: http://www.nhtsa.gov/cars/
problems/Equipment/towing/Towing.pdf.
WARNING: The trailer tongue weight must be
approximately 10% of the total trailer weight
without exceeding the maximum tongue weights
provided in Carrying Capacity. Loads that are
balanced over the wheels or heavier in the rear can
cause trailer sway, resulting in loss of vehicle
control.
WARNING: Always ensure that cargo is secured in
the trailer and will not shift. Dynamic load shifts
can cause loss of vehicle control, resulting in
serious injury or death.
Trailer Mode
Trailer Mode must always be active when towing a trailer.
When you connect a trailer's electrical connection,
Model X automatically engages Trailer Mode. When you
disconnect the trailer's electrical connection, Trailer
Mode disengages. To engage or exit Trailer Mode
manually, touch Controls > Pedals & Steering > Trailer
Mode on the touchscreen. One of the following
indicators display on the instrument panel:
MODEL X Owner's Manual