1993 CHEVROLET ASTRO PASSENGER Owners Manual

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AM41 5020
As you brake, your computer keeps receiving updates on wheel speed and
controls braking pressure accordingly.
CAUTION
Anti-lock doesn’t change the time you need to get your foot up to
the brake pedal. 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.
To Use Four-wheel Anti-Lock:
Don’t pump the brakes. Just hold the brake pedal down and let anti-lock work
for you. You may feel the brakes vibrate,
or you may notice some noise, but
this is normal.
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Downloaded from www.Manualslib.com manuals search engine Brake System Warning Light
Standard Cluster Digital Cluster
PO641
This light appears on your instrument cluster to warn you if your regular
braking system needs service. See “Brake System Warning Light” in the
Index.
Anti-lock Brake System Warning Light
Standard CIusfer Digital Cluster
This light appears on the instrument cluster to warn you if your anti-lock
brake system needs service. See “Anti-lock Brake System Warning Light” in
the Index.
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Downloaded from www.Manualslib.com manuals search engine Disc Brake Wear Indicators
Your vehicle has front disc brakes and rear drum brakes. Disc brake\
pads
have built-in wear indicators that make a high-pitched warning sound when
the brake pads are worn and new pads are needed. The sound m\
ay come and go or be heard all the time your vehicle is moving (except when you are
pushing on the brake pedal firmly).
I CAUTION
A The brake wear warning sound means that sooner or later your
4 brakes won’t work well. That could lead to an accident. When you
hear the brake wear warning sound, have your vehicle serviced. \
I
NCTICE
Some driving conditions or climates may cause a brake squeal when the
brakes are first applied or lightly applied. This does not mean something is
wrong with your brakes.
Rear Drum Brakes
Your rear drum brakes don’t have the 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
have the rear brakes inspected, too.
Brake linings should always be replaced
Brake Pedal Travel
See your dealer if the brake pedal does
there
is a rapid increase in pedal travel.
trouble.
Brake Adjustment
Every time you make a brake stop, your you have
the front brakes replaced,
as complete axle sets.
not return to normal height, or
if
This could be a sign of brake
disc brakes adjust for wear.
If your
brake pedal goes down farther than normal, your rear drum brak\
es may need
adjustment. Adjust them by backing up and firmly applying the brakes a few
times.
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Downloaded from www.Manualslib.com manuals search engine Your Driving and the Road
Braking In Emergencies
Use your anti-lock braking system when you need to. 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
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 surface, 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
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 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.
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Downloaded from www.Manualslib.com manuals search engine 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.
Steering in Emergencies
There are times when steering can be more effective than braki\
ng. For
example, you come over a hill and find a truck stopped in your lane, or a
car suddenly pulls
out from nowhere, or a child darts out from between
parked cars and stops right in front of you. You can avoid these problems by
braking-if you can stop in time. But sometimes you can’t; there isn’t room.
That’s the time for evasive action-steering around the proble\
m.
Your vehicle can perform very well in emergencies like these. First apply your
brakes.
It is better to remove as much speed as you can from a possible collision.
Then steer around the problem,
to the left or right depending on the space
available.
An emergency like this requires close attention and a quick decision.
If you
are holding the steering wheel at the recommended 9 and 3 o’clock positions,
you can turn
it a full 180 degrees very quickly without removing either hand.
But you have to act fast, steer quickly, and just as quickly straighten the
wheel once you have avoided the object. You must then be prepared
to steer
back to your original lane and then brake to a controlled stop.
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Downloaded from www.Manualslib.com manuals search engine Your Driving and the Road
Depending on your speed, this can be rather violent for an un\
prepared driver.
This is one of the reasons driving experts recommend that you use your
safety belts and keep both hands on the steering wheel.
The fact that such emergency situations are always possible is a good reason
to practice defensive driving at all times.
Off-Road Recovery
You may find sometime that your right wheels have dropped off the edge\
of
a road onto the shoulder while you’re driving.
If the level of the shoulder is only slightly below the pavement, recovery is
fairly easy. Ease off the accelerator and then, if there is nothing in the way,
steer
so that your vehicle straddles the edge of the pavement. You can turn
the steering wheel up to a quarter turn until the right front tire contacts the
pavement edge. Then turn your steering wheel
to go straight down the
roadway.
I
AM428001
If the shoulder appears to be about four inches (100 mm) or more below the
pavement, this difference can cause problems.
If there is not enough room to
pull entirely onto the shoulder and stop, then follow the same\
procedures. But
if the right tire scrubs against the side of the pavement, do NOT steer more
sharply. With too much steering angle, the vehicle may jump back onto the
road with
so much steering input that it crosses over into the oncoming traffic
before you can bring
it back under control.
Instead, ease off again on the accelerator and steering input, straddle the
pavement once more, then try again.
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Downloaded from www.Manualslib.com manuals search engine Passing
The driver of a vehicle about to pass another on a two-lane highway waits
for just the right moment, accelerates, moves around the vehicle ahead, then
goes back into the right lane again.
A simple maneuver?
Not necessarily! Passing another vehicle on a two-lane highway is a
potentially dangerous move, since the passing vehicle occupies the same lane
as oncoming traffic for several seconds.
A miscalculation, an error in
judgment, or a brief surrender
to frustration or anger can suddenly put the
passing driver face to face with the worst of all traffic accidents-the head-on
collision.
So here are some tips for passing:
“Drive ahead.” Look down the road, to the sides, and
to crossroads for
situations that might affect your passing patterns. If you have\
any doubt
whatsoever about making a successful pass, wait for a better t\
ime.
Watch for traffic signs, pavement markings, and lines.
If you can see a
sign up ahead that might indicate a turn or an intersection, delay your
pass. A broken center line usually indicates it’s all right
to pass
(providing the road ahead is clear). Never cross a solid line on your side
of the lane or a double solid line, even if the road seems empty of
approaching traffic.
If you suspect that the driver of the vehicle you want to pass isn’t aware
of your presence, tap the horn a couple of times before passing.
Do not get too close to the vehicle you want to pass while you’re
awaiting an opportunity. For one thing, following too closely r\
educes your
area of vision, especially
if you’re following a larger vehicle. Also, you
won’t have adequate space
if the vehicle ahead suddenly slows or stops.
Keep back a reasonable distance.
When
it looks like a chance to pass is coming up, start to accelerate
but stay in the right lane and don’t get too close. Time your move
so
you will be increasing speed as the time comes to move into \
the other
lane.
If the way is clear to pass, you will have a “running start” that
more than makes up for the distance you would lose by dropping back.
And
if something happens to cause you to cancel your pass, you need
only
slow down and drop back again and wait for another opportunity.
If other cars are lined up to pass a slow vehicle, wait your turn. But
take care that someone isn’t trying to pass you as you pull
out to pass
the
slow vehicle. Remember to glance over your shoulder and check the
blind spot.
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Downloaded from www.Manualslib.com manuals search engine Your Driving and the Road
0
Check your mirrors, glance over your shoulder, and start your \
left lane
change signal before moving out of the right lane
to pass. When you
are far enough ahead of the passed vehicle
to see its front in your
inside mirror, activate your right lane change signal and move \
back into
the right lane. (Remember that your right outside mirror is c\
onvex. The
vehicle you just passed may seem
to be further away from you than it
really
is.)
Try not to pass more than one vehicle at a time on two-lane roads.
Reconsider before passing the next vehicle.
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.
If you’re being passed, make it easy for the following driver
to get ahead
of you. Perhaps you can ease a little
to the right.
Loss of Control
Let’s review what driving experts say about what happens whe\
n the three
control systems (brakes, steering and acceleration) don’t ha\
ve 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 possib\
le.
The three types
of skids correspond to your vehicle’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.
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 foo\
t
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
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