1997 BUICK CENTURY brake

The air bag readiness light should flash for a few
seconds 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.
Charging System Light
4
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.
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.)
2-57
ProCarManuals.com

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 on after your parking brake is
fully
released, it means you have a brake problem.
Anti-Lock Brake System Warning Light
ANTI -
LOCK
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.)
2-58
ProCarManuals.com

ON:
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.
If 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 again to 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.
4nti-Lock Brake System Active Light
1
When your anti-lock system
is adjusting brake pressure
to help avoid a braking
skid,
the anti-lock brake system
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.
2-59
ProCarManuals.com

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. The
light will come on briefly
when your ignition is turned
on to show
you that it is
working properly.
Low Traction Light
LOW TRAC
When your anti-lock system
is adjusting brake pressure
to help avoid a braking skid,
this light will come on.
(Also see “Anti-Lock Brake
System Active Light”
earlier
in this section.)
Slippery road conditions may exist if the low traction
light comes on,
so adjust your driving accordingly. The
light will stay on for a few seconds after the anti-lock
system stops adjusting brake pressure.
The
LOW TRAC 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 anti-lock brake system is active.
2-61
ProCarManuals.com

F A
Defensive Driving
The best advice anyone can give about driving is:
Drive defensively.
Please start with a very Important safety device in your
Buick: Buckle up. (See “Safety Belts” in the Index.)
Defensive driving really means “be ready for anything.”
On city streets, rural roads or freeways, it means
“always expect the unexpected.”
Assume that pedestrians
or other drivers are going to be
careless and make mistakes. Anticipate what they might
do. Be ready for their mistakes.
Rear-end collisions are about the most preventable
of
accidents. Yet they are common. Allow enough
following distance. It’s the best defensive driving
maneuver, in both city and rural driving. You never
know when the vehicle in front of you is going to brake
or turn suddenly.
4-2
ProCarManuals.com

Control of a Vehicle Braking
You
have three systems that make your vehicle go where
you want it to go. They are the brakes, the steering and
the accelerator. All three systems have to do their work
at the places where the tires meet the road. Braking action involves perception
time and reaction time.
First, you have to decide to push on the brake pedal.
That’s
perception time. Then you have to bring up your
foot and do it. That’s
reaction time.
Sometimes, as when you’re driving on snow or ice, it’s
easy to ask more
of those control systems than the tires
and road can provide. That means you can lose control
of your vehicle. Average
reaction
time is about 314 of a second. But
that’s only an average. It might be less with one driver
and as long as two or three seconds or more with
another. Age, physical condition, alertness, coordination
and eyesight all play a
part. So do alcohol, drugs and
frustration. But even in 314
of a second, a vehicle
moving at
60 mph (100 km/h) travels 66 feet (20 m).
That could be a lot
of distance in an emergency, so
keeping enough space between your vehicle and others
is important.
And, of course, actual stopping distances
vary greatly
with the surface of the road (whether it’s pavement or
gravel); the condition of the road (wet,
dry, icy); tire
tread; the condition of your brakes; the weight of the
vehicle and the amount of brake force applied.
4-6
ProCarManuals.com

Avoid needless heavy bralung. 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.
Anti-Lock Brakes (ABS)
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
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.
4-7
ProCarManuals.com

than any driver could. The computer
is programmed to
The
anti-lock system can change the
brake pressure faster
mc&e the most of available tire and
road conditions.
Here’s how anti-lock works. Let’s say the road
is wet.
You’re driving safely. Suddenly an animal jumps out in
front of you.
You slam on the brakes. Here’s what happens with ABS.
A computer senses that wheels are slowing down. If one
of the wheels is about to stop rolling, the computer will
separately work the brakes at each front wheel and at the
rear wheels. You
can steer around the obstacle while braking hard.
As you brake, your computer keeps receiving updates on
wheel speed and controls braking pressure accordingly.
4-8
ProCarManuals.com