Chevrolet 2010 Camaro Owner's Manual page 289

For additional information
regarding how much weight
your vehicle can carry, and
an example of the Tire and
Loading Information label,
see
. How you load your
vehicle affects vehicle handling
and ride comfort. Never load
your vehicle with more weight
than it was designed to carry.
Check your tires once a month
or more. Do not forget to check
the compact spare tire, if the
vehicle has one. The compact
spare should be at 60 psi
(420 kPa). For additional
information regarding the
compact spare tire, see
.
Use a good quality pocket-type
gauge to check tire pressure.
You cannot tell if your tires
are properly inflated simply by
looking at them. Radial tires may
look properly inflated even when
they are under inflated. Check
the tire's inflation pressure when
the tires are cold. Cold means
your vehicle has been sitting for
at least three hours or driven no
more than 1.6 km (1 mile).
Remove the valve cap from the
tire valve stem. Press the tire
gauge firmly onto the valve to
get a pressure measurement.
If the cold tire inflation pressure
matches the recommended
pressure on the Tire and
Loading Information label, no
further adjustment is necessary.
If the inflation pressure is low,
add air until you reach the
recommended amount.
If you overfill the tire, release air
by pushing on the metal stem
in the center of the tire valve.
Re check the tire pressure with
the tire gauge.
Be sure to put the valve caps
back on the valve stems. They
help prevent leaks by keeping
out dirt and moisture.