check engine light CADILLAC SEVILLE 1996 4.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine I A CAUTION:
Don’t let anyone ride where he or she can’t wear
a safety belt properly.
If you are in a crash and
you’re not wearing a safety belt, your injuries
can be much worse.
You can hit things inside the
vehicle or be ejected from
it. You can be seriously
injured or killed.
In the same crash, you might
not be
if you are buckled up. Always fasten your
safety belt, and check that your passengers’ belts
are fastened properly too.
Your vehicle has a light that
comes on
as a reminder to
buckle up. (See “Safety Belt
Reminder Light” in
the
Index.)
In most states and Canadian provinces, the law says to
wear safety belts. Here’s why:
They work.
You never know if you’ll be in a crash. If you do have a
crash, you don’t know if it will be a bad one.
A few crashes are mild, and some crashes can be so
serious that even buckled up a person wouldn’t survive.
But most crashes are in between. In many
of them,
people
who buckle up can survive and sometimes walk
away. Without belts they could have been badly hurt or
killed.
After more than
25 years of safety belts in vehicles,
the facts are clear.
In most crashes buckling up does
matter ... a lot!

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A CAUTION:
Air bags inflate with great force, faster than the
blink of an eye.
If you’re too close to an inflating
air bag, it could seriously injure you. Safety belts
help keep you
in position for an air bag inflation
in
a crash. Always wear your safety belt, even
with an
air bag. The driver should sit as far back
as possible while still maintaining control of the
vehicle.
I A CAUTION:
An inflating air bag can seriously injure small
children. Always secure children properly
in your
vehicle.
To read how, see the part of this manual
called “Children” and the caution label on the
right front passenger’s safety belt.
11 There is an air bag
AIR BAG
readiness light on the
instrument panel, which
shows AIR
BAG.
The system checks the air bag’s electrical system for
malfunctions. The light tells
you if there is an electrical
problem. See
“Air Bag Readiness Light” in the Index
for more information.
1 31

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If the vehicle’s safety belt will fasten around you, you
should use it.
But if a safety belt isn’t long enough to fasten, your
dealer will order
you an extender. It’s free. When you go
in to order it, take the heaviest coat you will wear, so the
extender will be long enough for you. The extender will
be just for you, and
just for the seat in your vehicle that
you choose. Don’t let someone
else use it, and use it
only for the seat it is made to fit. To wear it, just attach it
to the regular safety belt.
Checking Your Restraint Systems
Now and then, make sure the safety belt reminder light
and
all your belts, buckles, latch plates, retractors and
anchorages are working properly. Look for any other
loose
or damaged safety belt system parts. If you see
anything that might keep a safety belt system from
doing its job, have
it repaired.
Torn or frayed safety belts may not protect you in a
crash. They can rip apart under impact forces. If a belt
is
tom or frayed, get a new one right away.
Also look for any opened
or broken air bag covers, and
have them repaired or replaced. (The air bag system
does not need regular maintenance.)
Replacing Restraint System Parts
After
a Crash
If you’ve had a crash, do you need new belts?
After a very minor collision, nothing may be necessary. But if the belts were stretched, as they would be if
worn
during a more severe crash, then you need new belts.
If belts are cut or damaged, replace them. Collision
damage also may mean
you will need to have safety belt
or seat parts repaired or replaced. New parts and repairs
may be necessary even
if the belt wasn’t being used at
the time of the collision.
If an air bag inflates, you’ll need
to replace air bag
system parts. See the
part on the air bag system earlier
in this section.
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If the turn signal is left on, a warning chime will sound
and the
DIC will display TURN SIGNAL ON (after
driving about a mile) to remind you to turn it off.
Arrows that
flash rapidly when signaling for a turn or
lane change may be caused by
a burned out signal bulb.
Other drivers won’t see the turn signal.
Replace burned
out bulbs to help avoid possible
accidents. Check the fuse (see “Fuses and Circuit
Breakers”
in the Index) and for burned-out bulbs if the
arrow fails
to work when signaling a turn.
Headlamp High/Low Beam
Pull the turn signal lever all
the way toward you and
then release
it to change the
headlamps from low beam
to high or from high beam
to low. The blue light on the
instrument panel will be on
indicating high-beam usage.
Flash-To-Pass
This lets you use the high-beam headlamps to signal the
driver in front
of you that you want to pass. It works
even if
the headlamps are off.
Pull the turn signal lever toward you to use. When you do:
0 If the headlamps are off, the high-beam headlamps
will turn on. They’ll stay on as
long as you hold the
lever there. Release the lever to turn them off.
If the headlamps are on low beam, they will shift to
high beam and stay there. Pull
the lever toward you
to return to low beam.
0 If the headlamps are on high beam, they will switch
to low beam. To return to high beam, pull the lever
toward
you.
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Engine Speed Limiter
This feature prevents the engine from operating at too
many revolutions per minute (rpm). When the engine
rpm’s are critically high, the fuel supply to the engine
is shut off. When the engine speed slows, the fuel
supply will come on again. This helps prevent damage
to the engine.
Vehicle Speed Limiter (270 hp)
This feature prevents your vehicle from exceeding
speeds that the tires are not rated for. When this
happens, the engine’s fuel supply is shut
off. When the
vehicle speed slows, the fuel supply will come on again.
Warning Lights, Gages and
Indicators
This part describes the warning lights and gages that
may be on your vehicle. The pictures will help you
locate them.
Warning lights
and gages can signal that something is
wrong before it becomes serious enough to cause
an
expensive repair or replacement. Paying attention to
your warning lights and gages could also save you
or
others from injury. Warning
lights come on when there may be or is a
problem with one
of your vehicle’s functions. As you
will see
in the details on the next few pages, some
warning lights come on briefly when you start the
engine just to let you know they’re working. If you
are
familiar with this section, you should not be alarmed
when this happens.
crages can indicate when there may be or is a problem
with one of your vehicle’s functions. Often gages and
warning lights work together to let you know when
there’s a problem with your vehicle.
When one of the warning lights comes on and stays on
when you are driving, or when one of the gages shows
there may be a problem, check the section that tells you
what to do about
it. Please follow this manual’s advice.
Waiting to do repairs can be costly
-- and even
dangerous.
So please get to know your warning lights
and gages. They’re a big help.
Your vehicle may
also have a driver information system
that works along with the warning lights and gages. See
“Driver Information Center” in the Index.
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Downloaded from www.Manualslib.com manuals search engine Safety Belt Reminder Light
When the key is turned to RUN or START, a chime will
come on for about eight seconds to remind people to
fasten their safety belts,
unless the driver’s safety belt is
already buckled.
The safety belt light will
also come on and stay
on for about
20 seconds,
then
it will flash for about
70 seconds. If the driver’s
belt is already buckled,
neither the chime nor the
light will come on.
Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows
AIR BAG. The system checks the
air bag’s electrical system for malfunctions. The light
tells
you if there is an electiical problem. The system
check includes the air bag sensors, the air bag modules,
the wiring and the crash sensing and diagnostic module.
For more information on the air bag system, see “Air
Bag” in the Index.
, You will see this light flash
for a few seconds when you
turn your ignition to RUN
or START. Then the light
should
go out. This means
,, the system is ready.
If the air bag readiness light doesn’t come on when you
start your vehicle, or stays on, or comes on when you
are driving, your air bag system may not work properly.
Have your vehicle serviced right away.
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Light
This red light tells you that
the engine has overheated.
You should stop the car and
turn the engine off as soon
as possible.
A warning
chime should also sound if
this light comes on.
As a check, the light should come on for a few seconds
when you start your engine. In the section “Problems on
the Road,” this manual explains what to do. See “Engine
Overheating’’ in the Index.
Malfunction Indicator Lamp
(Service Engine
Soon Light)
SERVICE
ENGINE
SOON
Your Cadillac 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.
2-71

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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:
0 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.
If the Light Is Flashing
The following may prevent more serious damage to
your vehicle:
0 Reduce vehicle speed.
0 Avoid hard accelerations.
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.
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If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
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.
Are 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.
Have you recently changed brands of fuel?
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 asdesigned.
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 warned
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.

Downloaded from www.Manualslib.com manuals search engine Oil Pressure Light
This light tells you if there
could be a problem with
your engine oil pressure.
The light
goes on when you turn your key to RUN or
START.
It goes off once you start your engine. That’s a
check to be sure the light works. If it doesn’t come on,
be sure to have it fixed so it will be there to warn you if
something goes wrong.
When the light
comes on and stays on, it means that
oil isn’t flowing through your engine properly. You
could be low on oil and you might have some other
system problem.
A CAUTION:
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.