Buick REGAL 1997 Manual page 145

Low Coolant Warning Light
I
OW COOLANT
If this light comes on, your
system is low on coolant
and the engine may
overheat. See "Engine
Coolant" in the Index and
have your vehicle serviced
as soon as you can. The
light will come on briefly
when your ignition is turned
on to show you that it is
working properly.
Malfunction Indicator Lamp
(Service Engine Soon Eight)
SERVICE ENGINE
SOON
Your Buick is equipped
with a computer which
monitors operation of the
fuel, ignition and emission
control systems.
This system is called OBD I1 (On-Board
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. (In Canada, OBD I1 is replaced by
Enhanced Diagnostics.) The SERVICE ENGINE
SOON light comes on and a chime will sound 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.
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