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When weather temperature changes
occur, tire inflation pressures also
change. A 10°F (6°C) temperature
drop can cause a corresponding drop
of 1 psi (7 kPa) in inflation pressure.
Check your tire pressures frequently
and adjust them to the proper
pressure which can be found on the
Safety Compliance Certification Label
or Tire Label.
To check the pressure in your tire(s):
1. Make sure the tires are cool,
meaning they are not hot from
driving even a mile.
Note: If you are checking tire pressure
when the tire is hot, (i.e. driven more
than 1 mile [1.6 kilometers]), never
bleed or reduce air pressure. The tires
are hot from driving and it is normal for
pressures to increase above
recommended cold pressures. A hot
tire at or below recommended cold
inflation pressure could be significantly
under-inflated.
Note: If you have to drive a distance
to get air for your tire(s), check and
record the tire pressure first and add
the appropriate air pressure when you
get to the pump. It is normal for tires
to heat up and the air pressure inside
to go up as you drive.
2. Remove the cap from the valve on
one tire, then firmly press the tire
gauge onto the valve and measure
the pressure.
3. Add enough air to reach the
recommended air pressure.
Note: If you overfill the tire, release air
by pressing on the metal stem in the
center of the valve. Then recheck the
pressure with your tire gauge.
4. Replace the valve cap.
5. Repeat this procedure for each tire,
including the spare.
Note: Some spare tires operate at a
higher inflation pressure than the other
tires. For T type mini-spare tires (refer
to the Dissimilar spare wheel and tire
assembly information for a
description): Store and maintain at 60
psi (4.15 bar). For full-size and
dissimilar spare tires (refer to the
Dissimilar spare wheel and tire
assembly information for a
description): Store and maintain at the
higher of the front and rear inflation
pressure as shown on the Tire Label.
6. Visually inspect the tires to make
sure there are no nails or other
objects embedded that could poke
a hole in the tire and cause an air
leak.
7. Check the sidewalls to make sure
there are no gouges, cuts or bulges.
313
Wheels and Tires
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