Chevrolet 2005 T-Series, Owner'S Manual

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Change Engine Oil Light
The change engine oil light
should come on briefly as
a bulb check when you
start the engine. If the
light doesn’t come
on, have it serviced.
If the change engine oil light comes on and stays on
after you start the engine, have the oil changed.
For additional information on when to change engine oil
for DURAMAX™ diesel engines, see Engine Oil on
page 5-14. To reset the change engine oil light,
see Engine Oil on page 5-14.
Engine Overspeed Warning Light
If your vehicle has this
light, it will come on if your
engine is operating at
too many revolutions
per minute (rpm).
It will also come on for a moment as a check when you
start your engine.
If it comes on when you’re driving, reduce your engine
speed immediately.
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