Malfunction Indicator Lamp - Pontiac 2000 Bonneville Owner's Manual

Tire Pressure Light (If Equipped)
After the system has been properly calibrated, the
TIRE PRESS light will come on if a pressure difference
(low pressure) is detected in one tire.
The light will stay on until you turn off the ignition or
reset (calibrate) the system. See "Check Tire Pressure
System" in the Index.
The TIRE PRESS light also comes on briefly when you
turn your ignition key to START. If the light doesn't
come on then, have it fixed so it will be there to tell you
if the pressure in a tire is low.
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If the anti lock brake system warning light comes on,
the check tire pressure system may not be working
properly. See your dealer for service. (Also, see
-
"Anti Lock Brake System Warning Light" in the Index).
The check tire pressure
system can alert you to
a large change in the
pressure of one tire.

Malfunction Indicator Lamp

(Service Engine Soon Light)
This system is called OBD II (On
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Diagnostics Second Generation) and is intended to
assure that emissions are at acceptable levels for the
life of the vehicle, helping to produce a cleaner
environment. The SERVICE ENGINE SOON light
comes on to indicate that there is a problem and service
is required. Malfunctions often will be indicated by the
system before any problem is apparent. This may
prevent more serious damage to your vehicle. This
system is also designed to assist your service technician
in correctly diagnosing any malfunction.
Your vehicle is equipped
with a computer which
monitors operation of the
fuel, ignition and emission
control systems.
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