Buick LESABRE 1997 Owner's Manual Page 129

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Check Oil Level Light
(If
Equipped)
The CHECK OIL LEVEL
light turns on for three
seconds as a bulb check
each time the ignition key
is
CHECK
turned to
the
RUN
position.
If the light doesn’t turn on,
I
LEVEL
have your vehicle serviced.
Change Oil
Soon
Light
(If
Equipped)
CHANGE
OIL
SOON
This light is activated by the
Engine Oil Life Monitor
System. The Engine Oil
Life Monitor determines the
condition of the engine oil
and lets you know when the
oil
should be changed. See
“Engine Oil”
in
the
Index.
If the engine oil
is
more than one quart
(0.95
L) low and
the
engine has been shut off for at least eight minutes,
the CHECK OIL LEVEL LIGHT will turn on for about
one minute and will then remain off until
the
next time
you start the vehicle.
If the CHECK OIL LEVEL light
turns
on, the engine oil
should be checked at the dipstick then brought up to the
proper level
if
necessary. See “Engine Oil” in the Index.
It
does this by electronically receiving data from the
Powertrain Control Module. The data
it
receives
contains information about engine speed (revolutions
per minute), coolant temperature and vehicle speed. The
Engine Oil Life Monitor uses this data
to
determine how
much
the
oil
has degraded.
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