Flat Spots
If Model X is stationary for a long period, tires
can form flat spots. When Model X is driven,
these flat spots cause a vibration which
gradually disappears as the tires warm up and
regain their original shape.
To minimize flat spots during storage, inflate
tires to the maximum pressure indicated on
the tire wall. Then, before driving, release air
to adjust tire pressure to the recommended
levels.
Improving Tire Mileage
To improve the mileage you get from your
tires, maintain tires at the recommended tire
pressures, observe speed limits and advisory
speeds, and avoid:
• Pulling away quickly, or hard acceleration.
• Fast turns and heavy braking.
• Potholes and objects in the road.
• Hitting curbs when parking.
• Contaminating tires with fluids that can
cause damage.
Replacing Tires and Wheels
Tires degrade over time due to the effects of
ultraviolet light, extreme temperatures, high
loads, and environmental conditions. It is
recommended that tires are replaced every
six years, or sooner if required, even if tread
depth is above the minimum.
Wheel and tires are matched to suit the
handling characteristics of the vehicle.
Replacement tires must comply with the
original specification. If tires other than those
specified are used, ensure that the load and
speed ratings marked on the tire (see
Understanding Tire Markings on page 240
)
equal or exceed those of the original
specification.
When a tire set becomes worn, replace all
four tires at the same time. If tires need to be
replaced early, we recommend replacing the
tires in pairs unless the other tires are fairly
new (for example, minimal wear relative to
the new tire). Place the new tires on the rear if
all four tires are of the same size. Always
balance the wheel and tire after replacing a
tire. Consult with a professional tire retailer
and installer for further guidance.
If you replace a wheel, the TPMS (Tire
Pressure Monitoring System) sensors need to
be reset to ensure they provide accurate
warnings when tires are under- or over-
inflated (see
).
For the specification of the original wheels
and tires installed on Model X, see
.
WARNING:
For your safety, use only
tires and wheels that match the
original specification. Tires that do not
match the original specification can
affect the operation of the TPMS.
WARNING:
Never exceed the speed
rating of your vehicle's tires. The
speed rating is shown on the sidewall
of your tires (see
).
Asymmetric Tires
Model X tires are asymmetric and must be
mounted on the wheel with the correct
sidewall facing outward. The sidewall of the
tire is marked with the word OUTSIDE. When
new tires are installed, make sure that the
tires are correctly mounted on the wheels.
WARNING:
Road holding is seriously
impaired if the tires are incorrectly
installed on the wheels.
Removing and Installing Aero Covers
If your Model X is equipped with aero covers,
you must remove them to access the lug nuts.
To remove an aero cover:
1. Grasp the aero cover firmly with both
hands.
2. Pull the aero cover toward you to release
the retaining clips.
Tire Care and Maintenance
215
Maintenance
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