Buick 1998 Regal Owner's Manual Page 308

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Tire Pressure Monitor System
(If
Equipped)
The tire pressure monitor system can alert you to a large
change in the pressure
of
one tire. The system “learns”
the
pressure at each tire throughout the operating speed
range of your vehicle. The system normally takes
between
45
and
90
minutes of driving to learn the tire
pressures. This time may be longer depending on your
individual driving habits. Learning need not be
accumulated during
a
single trip. Once learned, the
system will remember the tire pressures until the system
is recalibrated.
After the system has learned tire pressures with properly
inflated tires, the LOW TIRE light will come on if the
pressure in
one
tire becomes
12
psi
(83
kPa) lower than
the other three tires. The tire pressure monitor system
won’t alert you if the pressure
in
more than one tire is
low, if the system is not properly calibrated, or if the
vehicle
is
moving faster than
70
mph
(1 10
kdh).
The tire pressure monitor system detects differences
in tire rotation speeds that are caused by changes
in
tire pressure. The system
can
alert you about a low
tire
--
but it doesn’t replace normal tire maintenance.
See “Tires” in the Index.
When the LOW TIRE light comes
on,
you should stop
as soon as you can and check all your tires for damage.
(If a tire is flat, see “If
a
Tire Goes Flat” in the Index.)
Also check
the
tire pressure
in
all four tires as soon as
you can. See “Inflation
-
Tire Pressure”
in
the Index.
The light will come on and stay on
until
you turn off the
ignition or press the
RESET
button.
Don’t reset the tire pressure monitor system without first
correcting the cause of the problem and checking and
adjusting the pressure in all four tires. If you reset the
system when the tire pressures are incorrect, the tire
pressure monitor system will not work properly and may
not alert you when
a
tire
is
low.
Any time
you
adjust
a
tire’s pressure, rotate your tires,
or have one or more tires repaired or replaced, you’ll
need to reset (calibrate) the tire pressure monitor system.
You’ll also need to reset the system whenever you buy
new tires and whenever the vehicle’s battery has been
disconnected.
To reset (calibrate) the system,
turn
the ignition switch
to
RUN.
Then press and hold the RESET button for
about five seconds.
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