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High Speed Operation
{CAUTION:
Driving at high speeds, 100 mph (160 km/h)
or higher, puts an additional strain on tires.
Sustained high-speed driving causes
excessive heat build up and can cause sudden
tire failure. You could have a crash and you or
others could be killed. Some high-speed rated
tires require inflation pressure adjustment for
high speed operation. When speed limits and
road conditions are such that a vehicle can
be driven at high speeds, make sure the tires
are rated for high speed operation, in excellent
condition, and set to the correct cold tire
inflation pressure for the vehicle load.
If you will be driving at high speeds, speeds of
100 mph (160 km/h) or higher, where it is legal, set
the cold inflation pressure to the maximum inflation
pressure shown on the tire sidewall, or 38 psi (265 kPa),
whichever is lower. See the example following.
When you end this high-speed driving, return the tires
to the cold inflation pressure shown on the Tire and
Loading Information label. See Loading Your Vehicle
on page 4-45.
Example:
You will find the maximum load and inflation pressure
molded on the tire’s sidewall, in small letters, near
the rim flange. It will read something like this: Maximum
load 690 kg (1521 lbs) 300 kPa (44 psi) Max. Press.
For this example, you would set the inflation pressure for
high-speed driving at 38 psi (265 kPa).
Tire Pressure Monitor System
Your vehicle may have this feature. The Tire Pressure
Monitor (TPM) system uses radio and sensor technology
to check tire pressure levels. If your vehicle has this
feature, sensors are mounted on each tire and wheel
assembly, except for the compact spare tire and wheel.
Tire pressure readings are sent to a receiver located
in the vehicle once every 60 seconds while the vehicle is
being driven, and once every 60 minutes if the vehicle
is stationary for more than 15 minutes.
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