light SATURN AURA 2007 Service Manual

{CAUTION:
If the airbag readiness light stays on after
you start your vehicle, it means the airbag
system may not be working properly. The
airbags in your vehicle may not inate in
a crash, or they could even inate without
a crash. To help avoid injury to yourself
or others, have your vehicle serviced right
away if the airbag readiness light stays on
after you start your vehicle.
The airbag readiness light should ash for a few
seconds when you turn the ignition key to ON.
If the light does not come on then, have it xed so
it will be ready to warn you if there is a problem.
Passenger Airbag Status Indicator
Your vehicle has the passenger sensing system.
Your instrument panel has a passenger airbag
status indicator.
When the ignition key is turned to ON or START,
the passenger airbag status indicator will light
ON and OFF, or the symbol for on and off,
for several seconds as a system check. Then,
after several more seconds, the status indicator
will light either ON or OFF, or either the on
or off symbol to let you know the status of the
right front passenger’s frontal airbag and
seat-mounted side impact airbag.
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If the word OFF or the off symbol is lit on the
airbag status indicator, it means that the
passenger sensing system has turned off the right
front passenger’s frontal airbag and seat-mounted
side impact airbag. SeePassenger Sensing
System on page 77for more on this, including
important safety information.
If, after several seconds, all status indicator lights
remain on, or if there are no lights at all, there
may be a problem with the lights or the passenger
sensing system. See your retailer for service.
{CAUTION:
If the off indicator and the airbag
readiness light ever come on together, it
means that something may be wrong with
the airbag system. If this ever happens,
have the vehicle serviced promptly,
because an adult-size person sitting in the
right front passenger seat may not have
the protection of the airbags. SeeAirbag
Readiness Light on page 164.
Charging System Light
The charging system
light will come on for a
few seconds when
you turn on the ignition
as a check to indicate
it is working.
If the light stays on, or comes on while you are
driving and you hear a chime, there could be
a problem with the electrical charging system. This
could indicate that there is a loose generator
drive belt or another electrical problem. Have it
checked right away. Driving while this light
is on could drain the battery and result in the
engine and headlights suddenly shutting off.
If you must drive a short distance with this light
on, turn off accessories, such as the radio,
air conditioner and heater fan.
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Brake System Warning Light
Your vehicle’s hydraulic brake system is divided
into two parts. If one part is not working, the other
part can still work and stop you. For good
braking, though, you need both parts working well.
If the warning light comes on, there is a brake
problem. Have your brake system inspected
right away.
This light should come on briey when you turn
the ignition key to ON. If it does not come on then,
have it xed so it will be ready to warn you if
there is a problem.When the ignition is on, the brake system warning
light will also come on when you set your
parking brake. The light will stay on if your parking
brake does not release fully. If it stays on after
your parking brake is fully released, it means you
have a brake problem.
The Driver Information Center (DIC) may display a
BRAKE FLUID message. SeeDIC Warnings
and Messages on page 182for more information.
If the light comes on while you are driving, pull
off the road and stop carefully. You may notice that
the pedal is harder to push or the pedal may go
closer to the oor. It may take longer to stop.
Try turning off and restarting the vehicle one or two
times, if the light is still on, have the vehicle
towed for service. SeeTowing Your Vehicle on
page 247.
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{CAUTION:
Your brake system may not be working
properly if the brake system warning light
is on. Driving with the brake system
warning light on can lead to an accident.
If the light is still on after you have pulled
off the road and stopped carefully, have
the vehicle towed for service.
Antilock Brake System Warning
Light
Your vehicle may have
the Antilock Brake
System (ABS).
This light will come on when your engine is started
and may stay on for several seconds. This is
normal.If the light stays on, turn the ignition to off. If the
light comes on and the chime sounds when
you are driving, stop as soon as possible and turn
the ignition off. Then start the engine again to
reset the system. If the light still stays on,
or comes on again while you are driving, your
vehicle needs service. If the regular brake system
warning light is not on, you still have brakes,
but you do not have antilock brakes. If the regular
brake system warning light is also on, you do
not have antilock brakes and there is a problem
with your regular brakes. SeeBrake System
Warning Light on page 168earlier in this section.
The ABS warning light will come on briey
when you turn the ignition key to ON. This is
normal. If the light does not come on then, have it
xed so it will be ready to warn you if there is a
problem.
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Low Tire Pressure Warning Light
This light will come on
briey when you turn
the ignition to RUN.
This light will also come on when one or more of
your tires are signicantly underinated.
A CHECK TIRE PRESS DIC message will
accompany the light, seeDIC Warnings and
Messages on page 182for more information.
Stop and check your tires as soon as it is safe to do
so. If underinated, inate to the proper pressure.
SeeTires on page 298for more information.
This light will ash for 60 seconds and then turn
on solid if a problem is detected with the Tire
Pressure Monitor system. SeeTire Pressure
Monitor System on page 305for more information.
Traction Control System (TCS)
Warning Light
If your vehicle has the
Traction Control System
(TCS), this light may
come on for the
following reasons:
If you turn the system off by pressing the TC
(traction control) button located on the center
console, the light will come on and stay on. To
turn the system back on, press the button again
and the warning light should go out.
If there is a brake system problem that is
specically related to traction control, the TCS
will turn off and the warning light will come on.
If the traction control system warning light comes
on and stays on for an extended period of
time when the system is turned on, your vehicle
needs service.
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Electronic Stability Control Indicator
Light
Your vehicle may have
the Electronic Stability
Control (ESC) system.
You may feel or hear the system working, this is
normal. SeeElectronic Stability Control on
page 219for more information.
When the ESC indicator light is on and either the
SERVICE ESC or ESC OFF Driver Information
Center (DIC) message is displayed, the system will
not assist the driver to maintain directional
control of the vehicle. Adjust your driving
accordingly. SeeDIC Warnings and Messages on
page 182for more information.
Engine Coolant Temperature
Warning Light
This light indicates that
the engine coolant has
overheated or the
radiator cooling fan is
not working.
This light will come on briey when you turn on
the ignition as a check to show you it is working.
If the light comes on and the vehicle has been
operating under normal driving conditions, pull off
the road, stop the vehicle, and turn off the
engine as soon as possible.
SeeCooling System on page 278for more
information.
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Malfunction Indicator Lamp
Check Engine Light
Your vehicle has 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 make sure that emissions are at acceptable
levels for the life of the vehicle, helping to produce
a cleaner environment. The check engine 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 can 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, the emission
controls might not work as well, your vehicle’s
fuel economy might not be as good, and the
engine might not run as smoothly. This
could lead to costly repairs that might not be
covered by your warranty.
Notice:Modications made to the engine,
transmission, 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 can cause
this light to come on. Modications to these
systems could lead to costly repairs not
covered by your warranty. This could also
result in a failure to pass a required Emission
Inspection/Maintenance test. SeeAccessories
and Modifications on page 253.
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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 could damage the emission
control system on your vehicle. Diagnosis and
service might be required.
Light On Steady— An emission control
system malfunction has been detected on your
vehicle. Diagnosis and service might be
required.
If the Light is Flashing
The following can prevent more serious damage
to your vehicle:
Reduce vehicle speed.
Avoid hard accelerations.
Avoid steep uphill grades.
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
the 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 dealer/retailer
for service as soon as possible.
If the Light Is On Steady
You might 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 the Tank on page 258.
The diagnostic system can determine if the
fuel cap has been left off or improperly installed. A
loose or missing fuel cap allows fuel to evaporate
into the atmosphere. A few driving trips with
the cap properly installed should turn the light off.
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Did you just drive through a deep puddle of
water?
If so, your vehicle’s electrical system might be
wet. The condition is usually corrected when the
electrical system dries out. A few driving trips
should turn the light off.
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel.
SeeGasoline Octane on page 255. Poor fuel
quality causes the engine not to run as efficiently
as designed. You might 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
might 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 dealer/retailer can check the vehicle.
Your dealer/retailer has the proper test equipment
and diagnostic tools to x any mechanical or
electrical problems that might have developed.Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have
or might 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 to help
your vehicle pass an inspection:
Your vehicle will not pass this inspection if the
check engine 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 the battery or if the battery has run
down. The diagnostic system is designed
to evaluate critical emission control systems
during normal driving. This can 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 dealer/retailer
can prepare the vehicle for inspection.
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Oil Pressure Light
If your vehicle has low
engine oil pressure, this
light will stay on after
you start your engine, or
come on and you will
hear a chime 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.
This light will come on briey when you turn on
the ignition as a check to show you it is working. If
it does not come on with the ignition on, you
may have a problem with the 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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