Honda Civic Hybrid 2004 Online Reference Owner's Manual page 174

For convenience, the recommended
tire sizes and cold air pressures are
on a label on the driver's doorjamb.
For additional technical information,
see page 206 .
Use a gauge to measure the air
pressure at least once a month. Even
tires that are in good condition may
lose one to two psi (10 to 20 kPa, 0.1
to 0.2 kgf/cm ) per month.
Remember to check the spare tire at
the same time.
Check the pressure in the tires when
they are cold. This means the vehicle
has been parked for at least three
hours, or driven less than 1 mile (1.6
km).
Add or release air, if needed, to
match the recommended cold tire
pressures on page 170 .
If you check the pressure when the
tires are hot (driven for several
miles), you will see readings 4 to 6
psi (30 to 40 kPa, 0.3 to 0.4 kgf/cm )
higher than the cold reading. This is
normal; do not release air to match
the cold pressure.
Tubeless tires have some ability to
self-seal if they are punctured. You
should look closely for punctures if a
tire starts losing pressure.
You should get your own tire
pressure gauge and use it whenever
you check your tire pressures. This
will make it easier for you to tell if a
pressure loss is due to a tire problem
and not due to a variation between
gauges.
Tire Inspection
Every time you check inflation, you
should also examine the tires for
damage, foreign objects, and wear.
You should look for:
Bumps or bulges in the tread or
side of the tire. Replace the tire if
you find either or these conditions.
Cuts, splits, or cracks in the side
of the tire. Replace the tire if you
can see fabric or cord.
Excessive tread wear.
Maintenance
Tires
CONTINUED
171