1996 BUICK REGAL Owners Manual

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 electrical 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.
AIR BAG pf 0.
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.
Charging System Light
The charging system light
will come on briefly when
you turn
on the ignition, as
a check to show you it’s
working. Then it should
go out.
If it stays on, or comes on while you are driving, you
may have
a problem with the charging system. It could
indicate that you have
a loose 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.
ProCarManuals.com

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.)
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 or if the
anti-lock brake system warning light
is flashing
after you’ve pulled off the road and stopped
carefully, have the vehicle towed for service.
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 doesn’t release
fully. If it stays 011 after your parking brake is fully
released,
it means you have a brake problem.
ProCarManuals.com

Anti-Lock Brake System Warning Light
With the anti-lock brake
system, this light will come
on when you start your
engine and
it will stay
on for three seconds.
That’s normal.
If the light flashes when you’re driving, you don’t have
anti-lock brakes and there could be a problem with your
regular brakes. 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.
Have the vehicle towed for service. (See “Towing Your
Vehicle” in
the Index.)
A
Your regular brake system may not be working
properly if the anti-lock brake system warning
light
is flashing. Driving with the anti-lock brake
system warning light flashing can lead
to an
accident. After you’ve pulled off the road and stopped carefully, have the vehicle towed
for service.
f the anti-lock brake system warning light stays on
longer than normal after you’ve started your engine, turn
the ignition off. Or, if the light comes
on and stays on
when you’re driving, stop as soon as possible and turn
the ignition
off. Then start the engine againto reset the
system.
If the light still stays on, or comes on again
while you’re driving, your Buick needs service. If the
light is
on but not flashing and the regular brake system
warning light isn’t on, you still have brakes, but you
don’t have anti-lock brakes.
The anti-lock brake system warning light should come
on briefly when you turn the ignition key
to RUN. If the
light doesn’t come on then, have
it fixed so it will be
ready to warn you if there is a problem.
2-49
ProCarManuals.com

E
Anti-Lock Brake System Active Light
LOW
TRAC
When your anti-lock system
is adjusting brake pressure
to help avoid a braking skid,
the anti-lock brake system
active light will come on.
Engine Coolant Temperature Light
-
TEMP
This light tells you that your
engine coolant has
overheated or your radiator
cooling fan
is not working.
Slippery road conditions may exist if this light comes
on,
so adjust your driving accordingly. The light will
stay on for
a few seconds after the system stops
adjusting brake pressure,
The anti-lock brake system active light
also comes on
briefly when you turn the ignition key to RUN. If the
light doesn’t come on then, have it fixed
so it will be
there to tell you when the system is active. 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.
In “Problems
on the Road,” this manual shows what to
do. See “Engine Overheating” in the Index.
ProCarManuals.com

Engine Coolant Temperature Gage

TEMPERATURE
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.
In “Problems on the Road,”
this manual shows what to
do. See “Engine Overheating” in
the Index.
Low Coolant Warning Light
LOW
COOLANT
If this light comes on, your
system is low on coolant
and the engine may
overheat. See “Engine
Coolant” in ‘the Index and
have your vehicle serviced as soon as you can.
2-51
ProCarManuals.com

Malfunction Indicator Lamp
(Service Engine Soon Light)
SERV. ENGINE
SOON
Your Buick 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 SERV. 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.
1 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
or two ways:
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.
ProCarManuals.com

If the Light Is Flashing If the Light Is On Steady
The following may prevent more serious damage to
your vehicle:
0 Reduce vehicle speed.
0 Avoid hard accelerations.
0 Avoid steep uphill grades.
0 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. You
may be able to correct the emission system
malfunction by considering the following:
Did you just put fuel into your vehicle?
If
so, reinstall the fuel cap, making sure to fully install
the cap. The diagnostic system can determine
if the fuel
cap has been left off or improperly installed. This will
allow fuel to evaporate into the atmosphere. A few
driving trips should turn the light off.
Did you just drive through a deep puddle
of water?
Tf 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.
ProCarManuals.com

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.
Oil Warning Light
If you have a problem with
your oil, this light may stay
on after you start your
engine, or come on when
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 it fixed right away.
The oil light could also come on
in two 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 on, you may have a problem with the fuse or
bulb. Have it fixed right away.
2-54
ProCarManuals.com