Buick 2009 Enclave - Manual (Page 316)

When to Check
Check your tires once a month
or more. Do not forget to
check the compact spare tire, if
the vehicle has one. It should
be at 60 psi (420 kPa). For
additional information regarding
the compact spare tire, see
Compact Spare Tire on
page 5-79.
How to Check
Use a good quality pocket-type
gage 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 mile (1.6 km).
Remove the valve cap from the
tire valve stem. Press the
tire gage 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 gage.
Be sure to put the valve caps
back on the valve stems.
They help prevent leaks by
keeping out dirt and moisture.
Tire Pressure Monitor
System
The Tire Pressure Monitor System
(TPMS) uses radio and sensor
technology to check tire pressure
levels. The TPMS sensors monitor
the air pressure in your vehicle’s
tires and transmit tire pressure
readings to a receiver located in the
vehicle.
Each tire, including the spare
(if provided), should be checked
monthly when cold and inflated to
the inflation pressure recommended
by the vehicle manufacturer on
the vehicle placard or tire inflation
pressure label. (If your vehicle
has tires of a different size than the
size indicated on the vehicle
placard or tire inflation pressure
label, you should determine
the proper tire inflation pressure for
those tires.)
5-44 Service and Appearance Care