Pontiac 1999 Firebird Owner's Manual page 144

Oil Change Light
If the OIL CHANGE light comes on and stays on
for 60 seconds after you start your vehicle, have the
oil changed.
For additional information, see "Engine Oil, When to
Change" in the Index. After changing the engine oil, the
system must be reset. See "How to Reset the Oil Change
Light" in the Index.
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This OIL CHANGE light
should come on briefly as a
bulb check when you start
the engine. If the OIL
CHANGE light doesn't
come on, have it serviced.
Service Vehicle Light
This light will stay on steady if you have certain
-
non emission related vehicle problems. These problems
may not be obvious and may affect vehicle performance
or durability. Consult a qualified dealership for
necessary repairs to maintain top vehicle performance.
This warning light should
come on in your instrument
-
panel for a three second
bulb check when you first
start your vehicle. If the
light doesn't come on, have
it serviced.
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