1993 BUICK SKYLARK check engine light

Warning Lights, Gages and
Indicators
This section 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 go 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 turn the ignition key 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 the 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.
Fuel Gage
Your fuel gage shows how much fuel is in your tank. It
works only when the engine is on. When the indicator
nears
“E,” you still have a little fuel left. You need to get
more right away.

Low Coolant Warning Light
If this light comes on, your
system is low on coolant
and the engine may
overheat.
Malfunction Indicator Lamp (Service Engine Soon Light)
See “Engine Coolant’’ in the Index and have your
vehicle serviced as
soon as you can. 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 computkr is indicating that
you have a problem. You should take your vehicle in for
service soon.

This gage tells you if there could be a problem with your
engine oil pressure.
If the gage reads in the red band, and stays there, it
means oil isn’t going through your engine properly. You
could be low on oil or you might have some other oil
problem.
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 hp-
I your vehicle serviced.
“Check Oil” Light
e
The “Check Oil” 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, under the following conditions, the system
will not register a low engine oil condition.
0 If the vehicle is tilted more than 20°. I problems can be costly and is not covered by
If it has not been more than 8 minutes since the
engine was last shut off.
115

If the “Check Oil” light comes back on, the engine oil
should be brought up to the proper level, see “Engine
j Oil” in the Index.
“Battery” Light
When you turn the key to RUN, this light will come on
briefly, to show that your alternator and battery charging
systems are working.
If the light stays on, you need service, and should take your Buick to the dealer
at
once. To save your battery until
you get there, turn off
all accessories, and set your air system to OFF.
Volts Gage (Option)
This gage shows the voltage in the electrical system.
The normal range is
11 to 15 volts. If the reading stays
outside the normal range, have your Buick dealer check
the electrical system.

start bralung. If you must brake on the through lane, and
if there
is traffic close behind you, you can allow a little
extra time and flash your brake lights (in addition to your turn signal) as extra warning that you are about to
slow down and 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 slower than you
actually are. For example,
40 mph (65 km/h) might
seem like only
20 mph (30 km/h). Obviously, this could
lead to serious trouble on a ramp designed for
20 mph
(30 krn/h)!
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’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:
0 Windshield Washer Fluid: Is the reservoir full? Are
all windows clean inside and outside?
WiDer Blades: Are they in good shape/
Fuel, Engine Oil, Other Fluids: Have you checked
all levels?
0 Lights: Are they all working? Are the lenses clean?
0 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?
168

0
0
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.
I
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
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:
0
0
0
0
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.
169

Passing
You’ll need more passing distance up ahead when
you’re towing a trailer. And, because you’re a good deal \
longer, you’ll need to go much farther beyond the
passed vehicle before you can return to your lane.
d
Backing Up
Hold the bottom of the steering wheel with one hand.
Then, to move the trailer to the left, just move that hand
to the left. To move the trailer to the right, move your
hand to the right. Always. back up slowly and, if
possible, have someone guide you.
Making Turns
When you’re turning with a trailer, make wider turns
than normal.
Do this so your trailer won’t strike soft
shoulders, curbs, road signs, trees, or other objects.
Avoid jerky or sudden maneuvers. Signal well in
advance.
nrn Signals When Towing a Trailer
When you tow a trailer, your vehicle has to have a
different turn signal flasher and extra wiring. The green
arrows on your instrument panel will flash whenever you signal a turn or lane change. Properly hooked up, the trailer lights will also flash, telling other drivers
you’re about to turn, change lanes or stop.
When towing a trailer, the green arrows on your
instrument panel will flash for turns even if the bulbs on
the trailer are burned out. Thus, you may think drivers
behind you are seeing your signal when they are not. It’s
important to check occasionally to be sure the trailer
bulbs are still working.
Driving On Grades
Reduce speed and shift to a lower gear before you start
down a long
or steep downgrade. If you don’t shift
down, you might have to use your’brakes
so much that
they would get hot and no longer work well.
On a long uphill grade, use the highest gear. possible. If
you cannot maintain posted speeds, driving at a lower
speed may help avoid overheating your engine and
transaxle.
Parking on Hills
You really should not park your vehicle, with a trailer
attached, on a hill. If something goes wrong, your rig
could
start to move. People can be injured, and both
your vehicle and the trailer can be damaged.
183

.... +,..
Maintenance Inspections
.................................. 279
Record
...................................... 282
Schedule
.................................... 265
Underbody
.................................. 255
Malfunction Indicator Lamp
....................... 1 13
Manual Lumbar Support
........................... 15
Manualseat
..................................... 14
Manual Seat. Four Way
............................ 15
Markings. Pavement
............................. 144
Master Cylinder. Brake
........................... 236
Methanol In Gasoline
............................. 217
Mirrors
........................................ 102
Mirrors. Convex Outside
.......................... 104
Mirrors. Visor Vanity
............................. 104
Mist. Driving in
................................. 164
Mountain Driving
................................ 170
MTBE in Gasoline
............................... 2 17
. Mobile Telephone. Adding a ....................... 123 Octane
Required for Your Car
..................... 217
Odometer
...................................... 108
Odometer. Trip
.................................. 108
Off (Ignition Key Position)
......................... 73
Off-Road Recovery
.............................. 156
Oil. Engine
..................................... 223
Oil Pressure Warning Light
........................ 114
Oil. Change Your Engine
.......................... 223
Operation in Foreign Countries
..................... 218
Operation
of Lights ............................... 90
Outside Mirrors ................................. 103
Overheated Engine
............................... 197
Owner Checks and Services
........................ 276
P (Park) Position ................................. 77
Paint Spotting
................................... 255
Park. Shifting Into
................................ 81
Park. Shifting Out of
........................... 77. 83
Parking Brake
.................................... 80
Parking on Hills
................................. 172
N (Neutral) Gear Position ......................... 78 Parking Over Things That Burn ...................... 84
Net. Convenience
................................ 104 Passing ........................................ 156
New Vehicle Break-In
............................. 71 Pavement Markings .............................. 144
NightDriving
................................... 159 PedalTravel. Brake .............................. 153
Night Vision
.................................... 160 Perception Time in Braking ........................ 149
Notices About Damage
............................ 11 Periodic Maintenance Inspections ................... 279
Number. Vehicle Identification
..................... 257 Polishing and Waxing ............................ 253