2004 SATURN ION service

Engine Coolant Temperature Gage
This gage on the left
measures the temperature
of the vehicle’s engine
coolant. If the pointer
moves into the shaded
area, your engine is
too hot!
If the engine coolant temperature reaches 253° (123°C)
the CHK GAGE message will appear and a chime
will sound to alert you to the engine coolant
temperature gage. SeeMessage Center on page 3-41.If you have been operating your vehicle under normal
driving conditions, you should pull off the road and
stop your vehicle, be sure the air conditioning is off,
let the engine idle for a few minutes, then turn off
the engine.
If your engine control system detects a failure in the
engine coolant temperature circuit, the malfunction
indicator lamp (service engine soon) light will come on.
The coolant gage may read all the way hot or cold.
The engine cooling fan will be turned on to protect the
engine and transmission. SeeMalfunction Indicator
Lamp on page 3-36for more information.
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Malfunction Indicator Lamp
Service Engine Soon Light
Your vehicle is equipped
with a computer which
monitors operation of the
fuel, ignition and emission
control systems.
This system is called OBD II (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.
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. This may prevent more
serious damage to your vehicle. This system is also
designed to assist your service technician in correctly
diagnosing any malfunction.
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 notbe as good and your engine may not run as
smoothly. This could lead to costly repairs that may
not be covered by your warranty.
Notice:Modications made to the engine,
transaxle, exhaust, intake or fuel system of your
vehicle or the replacement of the original tires with
other than those of the same Tire Performance
Criteria (TPC) can affect your vehicle’s emission
controls and may cause this light to come on.
Modications to these systems could lead to costly
repairs not covered by your warranty. This may
also result in a failure to pass a required Emission
Inspection/Maintenance test.
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 does not come on, have it
repaired. This light will also come on during a
malfunction in one of two ways:
Light Flashing— A misre condition has been
detected. A misre increases vehicle emissions
and may damage the emission control system on
your vehicle. Diagnosis and service may be
required.
Light On Steady— An emission control system
malfunction has been detected on your vehicle.
Diagnosis and service may be required.
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If the Light Is Flashing
The following may prevent more serious damage to
your vehicle:
Reducing vehicle speed.
Avoiding hard accelerations.
Avoiding steep uphill grades.
If you are towing a trailer, reduce the amount of
cargo being hauled as soon as it is possible.
If the light stops ashing and remains on steady,
see “If the Light Is On Steady” following.
If the light continues to ash, when it is safe to do so,
stop the vehicle.Find a safe place to park your vehicle.
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 ashing,
follow the previous steps, and see your retailer for
service as soon as possible.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully
install the cap. SeeFilling Your Tank on page 5-8.
The diagnostic system can determine if the fuel cap has
been left off or improperly installed. A loose or missing
fuel cap will allow fuel to evaporate into the atmosphere.
A few driving trips with the cap properly installed
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.
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Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel.
SeeGasoline Octane on page 5-5. 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, misring, 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 one or more of these conditions,
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,
your retailer can check the vehicle. Your retailer has
the proper test equipment and diagnostic tools to x
any mechanical or electrical problems that may
have developed.Emissions Inspection and
Maintenance Programs
Some state/provincial and local governments have or
may begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this
inspection could prevent you from getting a vehicle
registration.
Here are some things you need to know in order to help
your vehicle pass an inspection:
Your vehicle will not pass this inspection if the SERVICE
ENGINE SOON light is on or not working properly.
Your vehicle will not pass this inspection if the OBD
(on-board diagnostic) system determines that critical
emission control systems have not been completely
diagnosed by the system. The vehicle would be
considered not ready for inspection. This can happen if
you have recently replaced your battery or if your
battery has run down. The diagnostic system is
designed to evaluate critical emission control systems
during normal driving. This may take several days
of routine driving. If you have done this and your vehicle
still does not pass the inspection for lack of OBD
system readiness, your retailer can prepare the vehicle
for inspection.
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Oil Pressure Light
If you have a low engine
oil pressure problem, this
light will stay on after
you start your engine,
or come on when you are
driving. This indicates
that your engine is
not receiving enough oil.
The engine could be low on oil, or could have some
other oil problem. Have it xed immediately.
The oil light may also come on 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 xed right away.{CAUTION:
Do not keep driving if the oil pressure is low.
If you do, your engine can become so hot that
it catches re. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice:Lack of proper engine oil maintenance
may damage the engine. The repairs would not be
covered by your warranty. Always follow the
maintenance schedule in this manual for changing
engine oil.
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Here are four things that some owners ask about.
None of these show a problem with your fuel gage:
At the service station, the fuel pump shuts off before
the gage reads full.
It takes a little more or less fuel to ll 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
ll the tank.
The gage moves a little when you turn a corner or
speed up.
The gage takes a few seconds to stabilize after the
ignition is turned on, and will go back to empty
when you turn the ignition off.
For your fuel tank capacity, seeCapacities and
Specications on page 5-102.
Message Center
The message center is located in the instrument panel
cluster. It gives you important safety and maintenance
facts.
If there are several messages, each message will be
shown for a few seconds and will continue to repeat until
cleared. To clear a message, press the trip/reset
button while the message you want to clear is being
displayed.
Many messages will also cause a chime to sound,
to alert you to the message.
Changing the Language (Canada Only)
Vehicles rst sold in Canada have instrument panel
clusters that show messages in either English or French.
To change the language, do the following:
1. Turn the ignition on.
2. Press the trip/reset button until the current language
of ENGLISH or FRENCH is displayed.
3. Press and hold the trip/reset button for several
seconds until the language is changed.
4. Press the trip/reset button to return to the odometer
display.
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Transaxle Fluid Cold Message
The TRANS COLD
message will be displayed
if the automatic transaxle
uid temperature is
too cold to operate
correctly.
When this happens, shifting out of PARK (P) is
prevented until the transaxle uid warms up. Let the
engine run for a few minutes until this message is
no longer displayed. The vehicle may then be shifted
out of PARK (P).
Low Coolant Level Warning Message
When the COOLANT
message is displayed while
the engine is running, the
engine coolant is low.
SeeEngine Coolant on page 5-26for more information.
Change Engine Oil Message
When the CHG OIL
message is displayed, it
means that service is
required for your vehicle.
SeeScheduled Maintenance on page 6-4 Engine Oil on
page 5-15for more information.
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Check Gage Message
If the CHK GAGE message
is displayed, the engine
coolant may be
overheated. A chime will
also sound to alert
you to this message.
If this message is displayed, check your engine coolant
temperature gage. If the needle is in the red area,
your engine may be overheating. SeeEngine Coolant
Temperature Gage on page 3-35andEngine
Overheating on page 5-29for more information.
Notice:Driving with either the CHK GAGE message
or the COOLANT message displayed in the
message center and the Engine Coolant
Temperature Gage on your instrument panel in the
red zone could cause your vehicle to overheat.
See “Engine Overheating” underEngine Coolant on
page 5-26. Your vehicle could be damaged and
the damages might not be covered by your warranty.
Power Steering Message
If the PWR STR message
is displayed, a problem
has been detected with the
electric power steering.
If you suspect electric power steering problems and/or
the PWR STR message is on, see your retailer for
service and repair.
Trunk Ajar Warning Message
When the TRUNK
message is displayed,
it means the trunk lid is not
fully closed.
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