1993 BUICK LESABRE check engine

e Put your valuables in a storage area, like your trunk
0 Lock the glove box.
Lock all the doors except the driver’s.
Then take the door key with you.
or glove box.
PASS-Key I1 TM
Your vehicle is equipped with the PASS-Key I1 TM
(Personalized Automotive Security System) theft
deterrent system. PASS-Key I1
TM is a passive theft deterrent system.
This means you don’t have to do
anything different
to arm or disarm the system. It works
when you insert or remove the key from the ignition.
PASS-Key uses a resistor pellet in the ignition key
that matches
a decoder in your vehicle.
When the PASS-Key I1
TM system senses that someone is
using the wrong key, it
shuts down the vehicle’s starter
and fuel systems. For about three minutes, the starter
won’t work and
fuel won’t go to the engine. If someone
tries to start your vehicle again or uses another key
during this time, the vehicle will not start. This
discourages someone from randomly trying different
keys with different resistor pellets in an attempt to make
a match.
The ignition key must be clean and dry before it’s
inserted in the ignition or the engine may not start.
If the
engine does not start and the “SECURITY” light comes
on, the key may be dirty or wet. Turn the ignition off.
Clean and dry the key. Wait about three minutes and try
again. The security light will remain on during this time.
If the starter still won’t work, and the key appears to be
clean and dry, wait about three minutes and try the other
ignition key. At this time, you may also want to check
the
fuse (see “Fuses and Circuit Breakers” in the Index).
If the starter won’t work with the other key, your vehicle
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Engine Coolant Temperature Gage
If you have the Gage Cluster, 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.
HOT COOLANT CAN BURN YOU BADLY!
In “Problems on the Road,” this manual shows what to
do. See “Engine Overheating”
in the Index.
Malfunction Indicator Lamp
(Service Engine Soon Light)
SERVICE
,ENGINE SOON
SERVICE
ENGINE
SOON
A computer monitors operation of your fuel, ignition
and emission control systems. This light should come
on
when the ignition is on, but the engine is not running, as
a check to show
you it is working. If it does not come on
at all, have
it fixed right away. If it stays on, or it comes
on while you are driving, the computer
is indicating that
you have a problem. You should take your vehicIe in for
service soon.
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I NOTICE:
If you keep driving your vehicle wlrn rnis llgr In,
after a while the emission controls won’t worK as
well, your fuel economy won’t be as good and
your engine may not run
as smoothly. This could
Engine Oil Pressure Light And Gage
i
This light tells you if there could be a problem with your
engine oil pressure.
If your car has the optional gage cluster, you can read
your oil pressure directly from the gage on your
instrument panel.
There are three ways this light can come
on briefly,
which is normal and doesn’t show a problem. They are:
1. The light comes on when you turn your key to
“Run.”
It goes off once you turn it to Start. That’s
just a check to be sure
the light works. If it doesn’t,
be sure to have
it fixed so it will be there to warn you
if something goes wrong.
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2. If you’re “idling” at a stop sign, the light may blink
3. If you make a hard stop, the light may come on for a
on and then off.
moment.
But, when this light comes
on and stays on, it means
oil isn’t going through your engine properly.
You could
be low on oil, or you might have some other oil
problem.
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A CAUTION:
Don’t keep driving if the 001 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.
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problems can ed
your warranty. I
‘‘Check Oil Level” Light (Option)
CHECK
OIL LEVEL.,
The “Check Oil Level”
light is lit for three seconds
as a bulb check each time
the ignition key is turned to
the RUN position.
If
the light doesn’t come on, have your vehicle serviced.
If the engine
oil is more than one quart low, the light
will come
on briefly, then go off for 15 - 25 seconds,
and then come back
on for 20 - 40 seconds.
However,
if it has not been more than eight minutes
since the engine was
shut off, the system will not
register a low engine oil condition.
If the “Check Oil Level” light comes back on, the
engine oil should be checked at the dipstick and then
brought up
to the proper level if necessary. See
“Engine Oil”
in the Index.

“Change Oil Soon’’ Light (Option)
This light is activated by
the Engine Oil Life
Monitor System. It
indicates that the engine oil
has degraded enough to
require changing. See
“Engine Oil”
in the Index.
After changing the engine oil, the system should be
reset.
This will cause the “Change Oil Soon” light once
again, to be lit for just
the bulb check period of 3
seconds.
This
is determined by electronically monitoring engine
speed, coolant temperature and vehicle speed. Since the
change interval is dependent on driving habits and
conditions, the “Change Oil Soon” light may come on as
early as
2,000 miles or less for harsh circumstances.
The “Change Oil Soon” light is lit for three seconds as a
bulb check each time the ignition key is turned to
the
RUN position. If an oil change is required, it will stay
on for 60 seconds each time the engine is started. If the
“Change Oil Soon” light is on continuously, there is a
problem with the Oil Life Monitor System and service
is
required. The reset button
is inside this hole, which is under the
passenger’s side of the instrument panel, near the door.
With the ignition key in
the RUN position, but the
engine not started, use a pen
to push the reset button,
holding
it in for at least 5 seconds but not more than 60
seconds. After 5 seconds, the “Change Oil Soon” light
will flash
4 times and then turn off. This indicates that
the Oil Life Monitor System has been reset.
1lA
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AM Stereo
This means the Delco@ system can receive C-QUAM@
stereo broadcasts. Many
AM stations around the country
use C-QUAM@ to produce stereo, though some
do not.
(C-QUAM@ is
a registered trademark of Motorola, Inc.)
If your D~ICO@ system can get C-QUAM@, your
“STEREO” light will come on when you’re receiving it.
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A CAUTION:
Hearing damage from loud noise is almost I
undetectable until it is too late. Your hearing can I
adapt to higher volumes of sound. Sound that
Seems normal
can be loud and harmful to your
hearing. Take pibutions by adjusting the
volume control on your radio ‘to a safe sound
level before your hearing adapts to it.
To help avoid hearing loss or damage:
m Adjust the volume control to the lowest
a Increase volume slowly until you hear
setting.
comfortably and cle; f.
Before
you add any sound equipment to you
vehicle
-- like a tape player, CB radio, mobile
telephone or two-way radio
-- be sure you car
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 eve1
damage them. And, your vehicle’s systems may interfere with the operation of sound e
ui ment
that has been added improperly.
So, before adding sound equip
your dealer and be sure
to check Federal r
covering mobile radio and telephone units
12s

Driving a Long Distance
Although most long trips today are made on freeways,
there are still many made on regular highways. Long-distance driving on freeways and regular
highways is the same in some ways. The trip has to be
planned and the vehicle prepared, you drive at
higher-than-city speeds, and there are longer turns
behind the wheel. You’ll enjoy your trip more if you and
your vehicle are in good shape. Here are some tips for a
successful long trip.
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’!! 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 Washer 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?
Lights: 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?
On the Road
Unless you are the only driver, it is good to share the
driving task with others. Limit turns behind the wheel to
about
100 miles (160 km) or two hours at a sitting.
Then, either change drivers or stop for some refreshment
like coffee, tea
or soft drinks and some limbering up.
But do stop and move around. Eat lightly along the way.
Heavier meals tend to make some people sleepy.

On two-lane highways or undivided multilane highways
that do not have controlled access, you’ll want to watch for some situations not usually found on freeways.
Examples are: stop signs and signals, shopping centers with direct access to the highway, no passing zones and school zones, vehicles turning left and right off the road,
pedestrians, cyclists, parked vehicles, and even animals.
Highway Hypnosis
Is there actually such a condition as “highway
hypnosis”? Or is it just plain falling asleep at the wheel?
Call it highway hypnosis, lack of awareness, or
whatever.
There is something about an easy stretch
of road with
the same scenery, along with the hum of the tires on the
road, the drone of the engine, and the rush of the wind
against the vehicle that can make you sleepy. Don’t let it
happen to you! If it does, your vehicle can leave the
road in less than a second, and you could crash and be
injured. What can you
do about highway hypnosis? First, be
aware that it can happen.
Then here are some tips:
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Make sure your vehicle is well ventilated, with a
comfortably cool interior.
Keep your eyes moving. Scan the road ahead and
to
the sides. Check your rearview mirrors frequently
and your instruments from time
to time. This can
help you avoid
a fixed stare.
Wear good sunglasses in bright light. Glare can
cause drowsiness. But don’t wear sunglasses at
night. They will drastically reduce your overall
vision
at the very time you need all the seeing power
you have.
If you get sleepy, pull off the road into a rest, service,
or parking area and take a nap, get some exercise, or
both. For safety, treat drowsiness on the highway as
an emergency.
As in any driving situation, keep pace with traffic and
allow adequate following distances.