1996 BUICK CENTURY check engine light

Speedometer and Odometer
Your speedometer lets you see your speed in both miles
per hour (mph) and kilometers per hour (kmh). Your
odometer shows how far your vehicle has been driven,
in either miles (used in the United States) or kilometers
(used in Canada).
Your Buick has a “tamper-resistant odometer.” If
you
can see very noticeable bright silver lines between the
numbers, someone has probably tried to turn it back.
The numbers may not be true.
You may wonder what happens if a vehicle has to have
a new odometer installed. If possible, the new one has
to be set
to the same reading as the old one. If it can’t
be, then it’s set at zero, and a label on the driver’s door
must show the old reading and when the new one
was installed.
Trip Odometer
The trip odometer can tell you how many miles you
have driven since
you last set it to zero. To reset it, push
the button
on the instrument cluster.
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 hnctions.
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.
Gages 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.
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Battery Light
I-+I
The battery warning light is
designed to come on briefly
when you turn on the
ignition, but the engine is
not running, as
a check to
show you it is working.
Then it should go out.
If it stays on, or comes on while
you
are driving, you may have a problem with the
electrical charging system. It could indicate that you
have a loose generator drive belt or another electrical
problem. Have it checked right away. Driving while this
light is on could drain your battery.
If
you must drive a short distance with the light on, be
certain to turn
off all your accessories, such as the radio
and air conditioner.
Brake System Warning Light
Your Buick’s hydraulic brake system is divided into two
parts.
If one part isn’t 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 could be a brake
problem. Have your brake system inspected right
away.
BRAKE
This light should come on
briefly when you turn the
ignition key to
RUN. If
it doesn’t come on then,
have it fixed
so it will be
ready to warn you if there’s
a problem.
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 floor. It
may take longer to stop.
If the light is still on, or if the
anti-lock brake system warning light is flashing, have the
vehicle towed for service.
(See “Anti-Lock Brake System
Warning Light” and ‘Towing Your Vehicle” in the Index.)
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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.
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:
0
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.
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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 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.
Engine Oil Pressure Light
If you have a problem with
your oil, this oil pressure
warning light may stay
on
after you start your engine,
or come
on when you are
driving. Stop your vehicle
and shut
off the engine if
this light stays on.
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 your vehicle
serviced immediately.
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The oil light could also come on in three other situations:
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, you may have
a problem with the fuse or a
bulb. Have
it fixed right away.
Sometimes when the engine is idling at a stop, the
If you make a hard stop, the light may come on for a
light
may blink on and off. This
is normal.
moment. This
is normal.
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.
Liftgate Ajar Warning Light (Wagon)
The TAILGATE AJAR
reminder light on your instrument panel will come
on if your liftgate is not
TAILGATE
AJAR
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NOTICE:
Before you add any sound equipment to your
vehicle
-- like a tape player, CB radio, mobile
telephone or two-way radio
-- be sure you can
add what you want.
If you can, it’s very
important to do it properly. Added sound
equipment may interfere with the operation of
your vehicle’s engine, Delco radio or other
systems, and even damage them. Your vehicle’s
systems may interfere
with the operation of
sound equipment that has been added
improperly.
So, before adding sound equipment, check with
your dealer and be sure to check Federal rules
covering mobile radio and telephone
units.
Care of Your Cassette Tape Player
A tape player that is not cleaned regularly can cause
reduced sound quality, ruined cassettes or
a damaged
mechanism. Cassette tapes should be stored in their
cases away from contaminants, direct sunlight and extreme heat.
If they aren’t, they may
not operate
properly or may cause failure
of the tape player.
Your tape player should be cleaned regularly after every
50 hours of use. If you notice a reduction in sound
quality, try
a known good cassette to see if the tape or
the tape player
is at fault. If this other cassette has no
improvement in sound quality, clean the tape player.
Cleaning may be done with
a scrubbing action,
non-abrasive cleaning cassette with
pads which scrub
the tape head as the hubs of the cleaner cassette turn. It
is normal for the cassette to eject while cleaning. Insert
the cassette at least three times to ensure thorough
cleaning.
A scrubbing action cleaning cassette is
available through your Buick dealer.
You may also choose a non-scrubbing action, wet-type
cleaner which uses
a cassette with a fabric belt to clean
the tape head. This type of cleaning cassette will not
eject. It may
not clean as thoroughly as the scrubbing
type cleaner.
Cassettes are subject
to wear and the sound quality may
degrade over time. Always make sure that the cassette
tape is
in good condition before you have your tape
player serviced.
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Avoid needless heavy braking. Some people drive
in spurts
-- heavy acceleration followed by heavy
braking
-- rather than keeping pace with traffic. This
is a mistake. Your brakes may not have time
to cool
between hard stops. Your brakes will wear out much
faster if you do
a lot of heavy braking. If you keep pace
with the traffic and allow realistic following distances,
you will eliminate
a lot of unnecessary braking. That
means better braking and longer brake life.
If your engine ever stops while you’re driving, brake
normally but don’t pump your brakes. If you do,
the
pedal may get harder to push down. If your engine
stops, you will still have some power brake assist. But
you will
use it when you brake. Once the power assist is
used up, it may take longer to stop and the brake pedal
will be harder to push. Your
vehicle has anti-lock brakes (ABS). ABS
is an
advanced electronic braking system that will help
prevent a braking skid.
When you start your engine, or when you begin to drive
away, your anti-lock brake system will check itself. You
may hear a momentary motor or clicking noise while
this test is going on, and you may even notice that your
brake pedal moves a little. This
is normal.
ANTI -
LOCK
Domestic Canadian
If there’s a problem with the anti-lock brake system, this
warning light will stay
on or flash. See “Anti-Lock
Brake System Warning Light” in the Index.
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Once you are moving on the freeway, make certain you
allow a reasonable following distance. Expect to move
slightly slower at night.
When you want to leave
the freeway, move to the proper
lane well in advance.
If you miss your exit, do not,
under any circumstances, stop and back up. Drive on to
the next exit.
The exit ramp can be curved, sometimes quite sharply.
The exit speed
is usually posted.
Reduce your speed according to your speedometer, not
to your sense of motion. After driving for any distance
at higher speeds, you may tend
to think you are going
s1owe.r than you actually are.
Before Leaving on a Long Trip
Make sure you’re ready. Try to be well rested. If you
must start when you’re not fresh
-- such as after a day’s
work
-- don’t plan to make too many miles that first part
of the journey. Wear comfortable clothing and shoes you
can easily drive
in.
Is your vehicle ready for a long trip? If you keep it
serviced and maintained, it’s ready to go. If it needs
service, have
it done before starting out. Of course,
you’ll find experienced and able service experts in
Buick dealerships all across North America. They’ll be
ready and willing
to help if you need it.
Here are some things you can check before a trip:
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Windshield Wclsher Fluid: Is the reservoir full? Are
all windows clean inside and outside?
Wiper Blades: Are they
in good shape?
Fuel, Engine Oil,
Other Fluids: Have you checked
all levels?
Larnps: Are they all working? Are the lenses clean?
Tires: They are vitally important to a safe,
trouble-free trip.
Is the tread good enough for
long-distance driving? Are the tires all inflated to
the
recommended pressure?
Weather
Forecasts: What’s the weather outlook
along your route? Should you delay your trip a short
time to avoid a major storm system?
Maps: Do you have up-to-date maps?
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