Buick PARKAVENUE 1994 Manual page 129

"Change Oil Soon" Light (Option)
CHANGE
OIL SOON
This light is activated by
the engine oil life monitor
system. The system
determines the condition o
the engine oil and lets you
know when the oil should
be changed. (See "Engine
Oil" in the Index).
It does this using information about engine speed
(revolutions per minute), coolant temperature and
vehicle speed. The system uses this data to determine
how much oil has degraded.
of the oil life has been used and each time the engine is
started after that.
If
the "Change Oil Soon" light is
on
continuously, there is a problem with the Oil Life
Monitor System and service is required.
After changing the engine oil, the system should be
reset. This will cause the "Change Oil Soon" light to be
lit again for#the bulb check period
of
three seconds.
When to change your oil depends on driving habits and
conditions because these directly affect engine speed,
coolant temperature and vehicle speed. Because of this,
the "Change Oil Soon" light may come on as early as
2,000 miles or less for harsh conditions.
The "Change Oil
Soon"
light is lit for five seconds as a
bulb check each time the ignition key is turned to the
RUN position. It will stay on for 60 seconds once 90%
f
The reset button is in the glove box. With the ignition
key in the RUN position push the reset button, hold it in
for at least 5 seconds but not more than 60 seconds.
After 5 seconds, the "Change Oil Soon" light will flash
4 times and then go off. This indicates
that the Oil Life
Monitor System has been reset.
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