1998 CHEVROLET ASTRO Owners Manual

Downloaded from www.Manualslib.com manuals search engine Section 4 Your Driving and the Road
Here you’ll find information about driving on different kinds of roads and in varying weather conditions. We’ve also
included many other useful tips on driving.
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4-2 4-5
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4-a
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4- 12
4-13 Defensive
Driving
Drunken Driving
Control of a Vehicle
Braking
Steering
Off-Road Recovery
Passing
Loss of Control
Driving at Night 4-15
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4-19
4-20
4-2
1
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4-26
4-28 Driving in Rain and
on Wet
Roads
City Driving
Freeway Driving
Before Leaving
on a Long Trip
Highway Hypnosis Hill and Mountain Roads
Winter Driving
Loading Your Vehicle
Towing a Trailer

Downloaded from www.Manualslib.com manuals search engine -
Defensive Driving
The best advice anyone can give about driving is:
Drive defensively.
Please start with a very important safety device in your
vehicle: 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.
Defensive driving requires that a driver concentrate
on
the driving task. Anything that distracts from the driving
task
-- such as concentrating on a cellular telephone call,
reading, or reaching for something on the floor
-- makes
proper defensive driving more difficult and can even
cause
a collision, with resulting injury. Ask a passenger
to help do things like this, or pull
off the road in a safe
place to do them yourself. These simple defensive
driving techniques could save your life.
Drunken Driving
Death and injury associated with drinking and driving is a
national tragedy. It’s the number one contributor
to the
highway death toll, claiming thousands of victims every year.
Alcohol affects four things that anyone needs
to drive
a vehicle:
0 Judgment
Muscular Coordination

Downloaded from www.Manualslib.com manuals search engine 0 Vision
0 Attentiveness.
Police records show that almost half
of all motor
vehicle-related deaths involve alcohol. In most cases,
these deaths
are the result of someone who was drinking
and driving. In recent years, over
17,000 annual motor
vehicle-related deaths have been associated with the use
of alcohol, with more than
300,000 people injured.
Many adults
-- by some estimates, nearly half the adult
population
-- choose never to drink alcohol, so they
never drive after drinking. For persons under 21, it’s
against the law in every
U.S. state to drink alcohol.
There are good medical, psychological and
developmental reasons for these laws.
The obvious way to solve this highway safety problem
is for people never to drink alcohol and then drive. But
what if people do? How much is
“too much” if the
driver plans
to drive? It’s a lot less than many might
think. Although
it depends on each person and situation,
here is some general information on the problem.
The Blood Alcohol Concentration (BAC) of someone
who is drinking depends upon four things:
0 The amount of alcohol consumed
The drinker’s body weight
The amount of food that is consumed before and
0 The length of time it has taken the drinker to
According to the American Medical Association, a
180-lb. (82 kg) person who drinks three 12-ounce
(355 ml) bottles of beer in an hour will end up with a
BAC of about
0.06 percent. The person would reach the
same BAC
by drinking three 4-ounce (120 ml) glasses
of wine or three mixed drinks if each had 1- 1/2 ounces
(45 ml) of a liquor like whiskey, gin or vodka.
during
drinking
consume
the alcohol.
4-3

Downloaded from www.Manualslib.com manuals search engine It’s the amount of alcohol that counts. For example, if
the same person drank three double martinis (3 ounces
or
90 ml of liquor each) within an hour, the person’s
BAC would be close to 0.12 percent. A person who
consumes food just before or during drinking will have
a
somewhat lower BAC level.
There is a gender difference, too. Women generally have
a lower relative percentage
of body water than men.
Since alcohol is carried in body water, this means that a
woman generally will reach a higher BAC level than
a
man of her same body weight when each has the same
number of drinks.
The law in many
U.S. states sets the legal limit at a BAC
of 0.10 percent. In a growing number of U.S. states, and
throughout Canada, the limit
is 0.08 percent. In some
other countries, it’s
even lower. The BAC limit for all
commercial drivers in the United States is
0.04 percent.
The BAC will be over 0.10 percent after three to
six drinks (in
one hour). Of course, as we’ve seen, it
depends on how much alcohol is in the drinks, and how
quickly the person drinks them.
But the ability to drive is affected well below a BAC of
0.10 percent. Research shows that the driving skills of
many people are impaired at
a BAC approaching
0.05 percent, and that the effects are worse at night.
All drivers are impaired at BAC levels above
0.05 percent. Statistics show that the chance of being in
a collision increases sharply for drivers who have a
BAC of
0.05 percent or above. A driver with a BAC
level
of 0.06 percent has doubled his or her chance of
having a collision. At a BAC level of 0.10 percent, the
chance of this driver having a collision is 12 times
greater; at a level of
0. I5 percent, the chance is
25 times greater!
The body takes about an hour
to rid itself of the alcohol
in one drink. No amount of coffee or number of cold
showers will speed
that up. “I’ll be careful” isn’t the
right answer. What
if there’s an emergency, a need to
take sudden action, as when
a child darts into the street?
A person
with even a moderate BAC might not be able
to react quickly enough to avoid the collision.
There’s something else about drinking and driving that many people don’t know. Medical research shows that
alcohol
in a person’s system can make crash injuries
worse, especially injuries to
the brain, spinal cord or
heart. This means that when anyone who has been
drinking
-- driver or passenger -- is in a crash, that
person’s chance of being killed or permanently disabled
is higher than
if the person had not been drinking.

Downloaded from www.Manualslib.com manuals search engine Drinking and then driving is very dangerous.
Your reflexes, perceptions, attentiveness and
judgment can be affected by even
a small amount
of alcohol.
You can have a serious -- or even
fatal
-- collision if you drive after drinking.
Please don’t drink and drive or ride with a driver
who has been drinking. Ride home in a cab; or
if
you’re with a group, designate a driver who will
not drink.
Control of a Vehicle
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.
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Downloaded from www.Manualslib.com manuals search engine 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 3/4 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 3/4 of a second, a vehicle
moving at
60 mph (100 kmh) 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. 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. 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.
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Downloaded from www.Manualslib.com manuals search engine 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 and 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. This is normal.
If there’s a problem with the
anti-lock brake system, this
warning light will stay on.
See “Anti-Lock Brake
System Warning Light” in
the Index.
ANTI -
LOCK
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
both rear wheels.
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Downloaded from www.Manualslib.com manuals search engine The anti-lock system can change the brake pressure
faster
than any driver could. The computer is
programmed
to make the most of available tire and
road conditions.
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. Remember: Anti-lock doesn’t
change the time you need
to get your
foot up to the brake pedal or always decrease
stopping distance.
If you get too close to the vehicle in
front of you,
you won’t have time to apply your brakes
if
that vehicle suddenly slows or stops. Always leave
enough room up ahead to stop, even though you have
anti-lock brakes.
Using Anti-Lock
Don’t pump the brakes. Just hold the brake pedal down
firmly and let anti-lock work for
you. You may feel the
brakes vibrate, or you may notice some noise, but this
is normal.
Braking in Emergencies
With anti-lock, you can steer and brake at the same
time. In many emergencies, steering can help you more
than even the very best braking.
Steering
Power Steering
If you lose power steering assist because the engine
stops or the system is not functioning, you can steer but
it will take much more effort.
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