Page 105 of 340
Downloaded from www.Manualslib.com manuals search engine Engine Coolant Temperature Gage
-loo @ 260
You have a gage that
shows the engine coolant
temperature.
If the gage
pointer moves into the red area, your engine is too hot!
That reading means the same thing as the warning light.
It means that your engine coolant has overheated.
If you
have been operating your vehicle under normal driving
conditions, you should pull
off the road, stop your
vehicle and
turn off the engine as soon as possible.
In “Problems on the Road”, this manual shows what to
do. See “Engine Overheating” in the Index.
Low Coolant Warning Light
LOW
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.
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Page 106 of 340

Downloaded from www.Manualslib.com manuals search engine Malfunction Indicator Lamp
(Service Engine Soon Light)
I
SERVICE
ENGINE
SOON
Your Chevrolet 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 to indicate that there is a problem and
service is required. Malfunctions often
will be indicated
by
the system before any problem is apparent, which
may prevent more serious damage to your vehicle. This
system is also designed to assist your service technician
in correctly diagnosing any malfunction.
0
0
NOTICE:
If you keep driving your vehicle with this light
on, after a while, your emission controls may not
work as well, your fuel economy may not
be as
good and your engine may not run as smoothly.
This could lead to costly repairs that may not be
covered by your warranty.
This light should come on, as a check to show you it is
working, when the ignition
is on and the engine is not
running.
If the light doesn’t come on, have it repaired.
This light
will also come on during a malfunction in one
of two ways:
Light Flashing -- A misfire condition has been
detected.
A misfire increases vehicle emissions and
may damage the emission control system on your
vehicle. Dealer or qualified service center diagnosis
and service is required.
Light On Steady -- An emission control system
malfunction
has been detected on your vehicle.
Dealer or qualified service center diagnosis and
service may be required.
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Page 107 of 340

Downloaded from www.Manualslib.com manuals search engine If the Light Is Flashing If the Light Is On Steady
The following may prevent more serious damage to
your vehicle:
Reduce vehicle speed.
0 Avoid hard accelerations.
0 Avoid steep uphill grades.
If towing a trailer, reduce the amount of cargo being
hauled as soon as it is possible.
If the light stops flashing and remains on steady, see
“If
the Light Is On Steady” following.
If the light continues to flash, when it is safe to do
so,
stop the vehicle. Put your vehicle in PARK (P). Turn the %
key off, wait at least 10 seconds and restart the engine.
If
the light remains on steady, see “If the Light Is On
Steady’’ following.
If the light is still flashing follow the
previous steps, and drive the vehicle to your dealer or qualified service center for service. You
may be able to correct the emission system
malfunction by considering the following:
Did you just put fuel into your vehicle?
If
so, reinstall the fuel cap, making sure to fully install
the cap. The diagnostic system can determine if the fuel
cap has been left
off or improperly installed. This will
allow fuel to evaporate into the atmosphere. A few
driving trips should turn the light off.
Did you just drive through a deep puddle of water?
If
so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out. A few driving trips should
turn the light off.
m-e you low on fuel?
As your engine starts to run out of fuel, your engine may
not run as efficiently as designed since small amounts of
air
are sucked into the fuel line causing a misfire. The
system can detect this. Adding fuel should correct this
condition. Make sure to install the fuel cap properly. It
will take a few driving trips to turn the light
off.
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Page 108 of 340

Downloaded from www.Manualslib.com manuals search engine Have you recently changed brandsl’of fuel? Oil Warning Light
If so, be sure to fuel your vehicle with quality fuel (see
“Fuel” in the Index). Poor fuel quality will cause your
engine not to run as efficiently as designed. You may
notice this as stalling after start-up, stalling when
you put the vehicle into gear, misfiring, hesitation
on acceleration or stumbling on acceleration. (These
conditions may go away once the engine is warmed up.)
This will be detected by the system and cause the light
to turn on.
If you experience this condition, change the fuel brand
you use. It will require at least one full tank of the
proper
fuel to turn the light off.
If none of the above steps have made the light turn off,
have your dealer or qualified service center check the
vehicle. Your dealer has the proper test equipment and
diagnostic tools to fix any mechanical or electrical
problems that may have developed.
OIL
If you have a problem with
your oil,
this light may stay
on after
you start your
engine, or come on when
you are driving.
.
This indicates that oil is not going through your engine
quickly enough to keep it lubricated. The engine could
be low on oil or could have some other oil problem.
Have it fixed right away.
The oil light could also come on in two other situations:
0 When the ignition is on but the engine is not running,
the light will come on as ,a test.to show you it is
working, but the light will go out when you turn the
ignition to START.
If it doesn’t come on with the
ignition on, you may have a problem with
the fuse
or bulb. Have
it fixed right away.
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Page 109 of 340

Downloaded from www.Manualslib.com manuals search engine 0 If you make a hard stop, the light may come on for a
moment. This is normal.
Low Oil Level Light
Don’t keep driving if the oil pressure is low. If
you do, your engine can become
so hot that it
catches fire. You or others could be burned.
Check your oil as soon as possible and have your
vehicle serviced.
I NOTICE:
Damage to your engine from neglected oil
problems can be costly and
is not covered by your
warranty.
LOW
OIL
Your engine is equipped
with an oil level monitoring
system. When the ignition
key
is turned on, the LOW
OIL light will briefly flash.
If the light does not flash,
have
it fixed so it will be
ready to warn you if there’s
a problem.
If the light stays on, stop the vehicle on a level surface
and turn
the engine off. Check the oil level using the
engine oil dipstick. (See “Engine Oil”
in the Index.)
If the light does not flash, have the low oil level sensor
system repaired
so it will be ready to warn you if there’s
a problem.
The oil level monitoring system only checks oil level
during the brief period between key
on and engine
crank. It does not monitor engine oil level when the
engine is running. Additionally, an oil level check
is
only performed if the engine has been turned off for a
considerable period of time, allowing the oil normally in
circulation to drain back into the oil pan.
Page 110 of 340

Downloaded from www.Manualslib.com manuals search engine Security Light
SECURITY
This light will come on
when you turn the key to
START and stay on until the
vehicle starts. It will also
come on and stay on if your
key is too dirty or wet for
the PASS-Key
I1 system to
read the resistor pellet.
Fuel Gage
"/@9 I/
E
If the resistor pellet is damaged or missing, the light
will flash.
If you're driving and the light comes on and remains on,
your PASS-Key
I1 system is not working properly. Your
vehicle is not protected by PASS-Key
11, and you should
see your dealer. Here are some
things owners ask about. All these
situations are normal and do not show a problem with
your fuel gage:
At the service station, the pump shuts off before the
gage reads
FULL (F).
It takes a little more or less fuel to fill up than the
gage indicated. For example, the gage may have
indicated the tank was half full, but it actually took
a little more or less than half the tank's capacity to
fill it.
The gage moves a little when you turn a corner or
speed up. Your
fuel gage tells you
about how much fuel you
have left when the ignition
is on. When the indicator
nears EMPTY (E), you still
have a little fuel left, but
you should get more soon.
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Page 111 of 340
Downloaded from www.Manualslib.com manuals search engine NOTES
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Downloaded from www.Manualslib.com manuals search engine NOTES
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