1993 BUICK CENTURY tires

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.
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.
Braking
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.
Average reaction time is about 34 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
% of a second, a vehicle moving at 60 mph
(100 ludh) 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 surf$ce of the road (whether it’s pavement or
gravel); the condition of the road (wet, dry, icy); tire
tread; and the condition of your brakes.
Most drivers treat their brakes with care. Some, however,
overwork the braking
system with poor driving habits.
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.
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Rear Drum Brakes
Your rear drum brakes don’t have wear indicators, but if
you ever hear a rear brake rubbing noise, have the rear
brake linings inspected.
Also, the rear brake drums should
be removed and inspected each time the tires are removed
for rotation or changing. .When you have the front brakes
replaced, have the rear brakes inspected, too.
Brake linings should always be replaced as complete
axle sets.
Braking In Emergencies
At some time, nearly every driver gets into a situation
that requires hard braking. Your first reaction-to
hit the
brake
pedal hard and hold it down-may be the wrong
thing to do. Your wheels can stop rolling. Once they
do,
the vehicle can’t respond to your steering. Momentum
will carry it
in whatever direction it was headed when the
wheels stopped rolling. That could be
off the road, into
the very thing you were trying
to avoid, or into traffic.
Use a “squeeze” braking technique. This will give you
maximum braking while maintaining steering control.
You do
this by pushing on the brake pedal with steadily
increasing pressure.
Brake Pedal Travel
See your dealer if the brake pedal does not return to
normal height, or if there is a rapid increase in
pedal
travel. This could be a sign of brake trouble.
Brake Adjustment
Every time you make a moderate brake stop, your disc
brakes adjust for wear.
If you rarely make a moderate or
heavier stop, then your brakes might not adjust correctly.’
If you drive in that way, then-very carefully-make a
few moderate brake stops about every
1,0oO miles
(1 600 km), so your brakes will adjust properly.
If your brake pedal goes down farther than normal, your rear drum brakes may need adjustment. Adjust them by
backing up and
firmly applying the brakes a few times. In an emergency you will probably want
to “squeeze”
the
brakes hard without locking the wheels.
If you hear or
feel the wheels sliding, ease off the brake pedal. This will
help you retain steering control.
In many emergencies, steering can help you more than
even the very best braking.
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Steering
Power Steering
If you lose power steering assist because the engine stops
or the system
fails to function, you can steer but it will
take much more effort.
Steering Tips
Driving on Curves
It’s important to take curves at a reasonable speed.
A lot of the “driver lost control” accidents mentioned on
the news happen on curves. Here’s why:
Experienced driver or beginner, each of us is subject to
the same laws of physics when driving on curves. The
traction
of the tires against the road surface makes it
possible for the vehicle to change its path when you turn
the front wheels. If there’s no traction, inertia will keep
the vehicle going
in the same direction. If you’ve ever
tried to steer a vehicle on wet ice, you’ll understand
this.
The traction you can get in a curve depends on the
condition
of your tires and the road surhce, the angle at
which the curve is banked, and your
speed. While you’re
in a curve, speed is the one factor you can control.
Suppose you’re steering through
a sharp curve. Then you
suddenly apply
the brakes. Both control systems-
steering and braking-have
to do their work where the
tires meet the road. Adding the hard braking can demand
too much at those places. You can lose control.
The
same thing can happen if you’re steering through a’
sharp curve and you suddenly accelerate. Those two
control systems-steering and acceleration-can
overwhelm those places where the tires meet the road and make you lose ‘control.
What should you do
if this ever happens? Let up on the
brake or accelerator
pedal, steer the vehicle the way you
want it to go, and slow down.
Speed limit signs near curves warn that you should adjust
your
speed. Of course, the posted speeds are based on
good weather and road conditions. Under less favorable
conditions you’ll want
to go slower.
If you need to reduce your speed as you approach a
curve, do it before you enter the curve, while your front
wheels
are straight ahead. Try to adjust your speed so
you can “drive” through the curve. Maintain a
reasonable, steady speed. Wait to accelerate until you are
out of the curve, and then accelerate gently into the
straightaway.
When you drive
into a curve at night, it’s harder to see
the road ahead of you because it bends away .from the
straight beams of your lights.
This is one good reason to
drive slower.
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Don’t overtake a slowly moving vehicle too rapidly.
Even though the brake lights are not flashing, it
may be
slowing down or starting to turn.
driver to get ahead of you. Perhaps you can ease a little
to the right.
If you’re being passed, make it easy for the following
Loss of Control
Let’s review what driving experts say about what happens
when the three control systems (brakes, steering and
acceleration) don’t have enough friction where the tires
meet the road
to do what the driver has asked.
In any emergency, don’t give up. Keep trying to steer and
constantly
seek an escape route or area of less danger.
Skidding
In a skid, a driver can lose control of the vehicle.
Defensive drivers avoid most skids
by taking reasonable
care suited
to existing conditions, and by not
“overdriving” those conditions. But skids are always
possible.
The three types
of skids correspond to your Buick‘s three
control systems. In the braking skid your wheels aren’t
rolling.
In the steering or cornering skid, too much speed
or steering in a curve causes tires to slip and lose
cornering force. And
in the acceleration skid too much
throttle causes the driving wheels to spin.
I
A cornering skid and an acceleration skid are best
handled by easing your foot
off the accelerator pedal. If
your vehicle starts to slide (as when you turn a corner on
a wet, snow- or ice-covered road), ease your
foot off the
accelerator pedal as soon as you feel the vehicle start to
slide. Quickly steer the way you want the vehicle to go. If
you
start steering quickly enough, your vehicle will
straighten out. As it does, straighten the front wheels.
Of course, traction is reduced when water, snow, ice,
gravel, or other material is on the road.
For safety, you’ll
want to slow down and adjust your driving
to these
conditions. It is important to slow down on slippery
surfaces because stopping distance will be longer and
vehicle control more limited.
While driving on a surfhce
with reduced traction, try
your best to avoid sudden steering, acceleration, or
braking (including engine braking
by shifting to a lower
gear).
Any sudden changes could cause the tires to slide.
You may not realize the surface is slippery until your
vehicle is skidding.
Learn to recognize warning clues-
such as enough water, ice or packed snow on the road
to
make a “mirrored surface”-and slow down when you
have
any doubt.
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Driving in the Rain
Rain and wet roads can mean driving trouble. On a wet
road you can’t stop, accelerate or
turn as well because
your tire-to-road traction isn’t as good as on dry roads.
And, if your tires don’t have much tread left, you’ll ge\
t
even less traction.
It’s always wise to go slower and be cautious
if rain starts
to hll while you are driving. The surface may get wet
suddenly when your reflexes are tuned for driving on dry
pavement. The heavier the
rain, the harder it is to see. Even if your
windshield wiper blades are in
good shape, a heavy rain
can make
it harder to see road signs and traffic signals,
pavement markings, the edge of the road, and even
people walking. Road spray can often be worse for vision than rain, especially if it comes from a dirty road.
So it is wise to keep your wiping equipment in good
shape and keep your windshield washer
tank filled.
Replace your windshield wiper inserts when they show signs of streaking or missing areas on the windshield, or
when strips of rubber
start to separate from the inserts.
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Driving too fast through large water puddles or even
going through some car washes can cause problems, too.
The water may affect your brakes. Try to avoid puddles.
But if you can’t, try to slow down before you hit them.
A CAUTION:
Wet brakes can cause accidents. They-won’t
work well in
a quick stop and may cause
pulling to one side. Ybu could lose control
of
the vehicle.
After driving through a large puddle of water
or I car wash, apply your brake pedal lightly
until your
brakes work normally.
Hydroplaning
Hydroplaning is dangerous. So much water can build up
under your tires that they can actually ride on the water.
This can happen if the road is wet enough and you’re
going fast enough. When your vehicle
is hydroplaning, it
has
little or no contact with the road.
You might not be aware of hydroplaning. You could drive
along for some time without realizing your tires aren’t in
constant contact with the road. You could
find out the
hard way: when you have’to slow, turn, move out to
pass-or if you get hit
by a gust of wind. You could
suddenly find yourself out
of control.
Hydroplaning doesn’t happen at higher
speeds. But it can
if your tires haven’t much tread or
if the pressure in one
or
more is low. It can happen if a lot of water is standing
on the road.
If you can see reflections from trees,
telephone poles, or other vehicles, and raindrops
“dimple” the water’s surface, there could be
hydroplaning.
Hydroplaning usually happens at higher speeds. There
just isn’t a hard and
fast rule about hydroplaning. The
best advice is to slow down when it is raining, and be careful.
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Some Other Rainy Weather Tips
Turn on your headlights-not just your parking
lights-to help make you more visible to others.
-
Look for hard-to-see vehicles coming from behind. You
may want to use your headlights even in daytime if it’s
raining hard.
Besides slowing down, allow some extra following
distance. And be
especially careful when you pass
another vehicle.
Allow yourself more clear room
ahead, and be prepared to have your view restricted by
road
spray. If the road spray is so heavy you are actually
blinded, drop back. Don’t pass until conditions improve. Going more slowly is better than having an accident.
Use your defogger if it helps.
Have good tires with proper tread depth. (See “Tires”
in the Index.)
Driving in Fog, Mist and Haze
,. .,,
Fog can occur with high humidity or heavy frost. It can
be
so mild that you can see through it for severa1,hundred
feet (meters). Or it might be so thick that you can see
only a few
feet (meters) ahead. It may come suddenly to
an otherwise clear road. And it can be a major hazard.
When you drive into a fog patch, your visibility will be
reduced quickly. The biggest dangers
are striking the
vehicle ahead or being struck by the one behind’.
Try to
“read” the fog density down the road. If the vehicle
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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:
Windshield Washer Fluid: Is the reservoir full? Are
all windows clean inside and outside?
Wiper Blades: Are they in good shape?
hel, Engine Oil, Other Fluids: Have you checked all
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?
levels?
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
sol3 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.
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