1994 OLDSMOBILE BRAVADA brake

Your Driving and the Road
110
SERVICE
ENGINE
SOON ANT’- LOCK I
Anti-Lock Brakes (ABS)
Your vehicle has an advanced electronic
braking system that can help you keep
it under control. When you start your
vehicle and begin to drive away, you
may hear a momentary motor or
clicking noise. This is the ABS system
testing itself. Here’s how anti-lock works.
Let’s say
the road is wet. You’re driving safely.
Suddenly an animal jumps out in front
You slam on the brakes. Here’s what
happens with
ABS.
A computer senses that the 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. 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.
of
you.
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.
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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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.
I 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.
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. Both control systems
-
steering and acceleration - have to do
their work where the tires meet the
road. Adding the sudden acceleration
can demand too much of those places.
You can lose control.
Suppose you’re steering through
a
sharp curve. Then you suddenly
accelerate. Both control systems
-
steering and acceleration - have to do
their work where the tires meet the
road. Unless you have traction control
and the system is on, adding the sudden
acceleration can demand too much of
those places.
You can lose control. What
should you do if this ever
happens? Ease 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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Your Driving and the Road
112
Steering in Emergencies
There are times when steering can be
more effective than braking. 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 problem.
Your Oldsmobile can perform very well
in emergemies like these. First apply
your brakes. It is better to remove as
much speed as
you can from a possible collision. Then
xeer 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.
The fact that such emergency situations
are always possible is
a good reason to
practice defensive driving at all times
and wear safety belts properly.
, IOFF ROAD RECOVERY /
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
should be 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 1/4
turn until the right front tire contacts
the pavement edge. Then turn your
steering wheel to
go straight down the
roadway.
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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 time.
markings, and lines. If you can see a
sign up ahead that might indicate a
turn or an intersection, delay your
Watch for traffic signs, pavement 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.
Do not get too close to the vehicle you
want to pass while you’re awaiting an
opportunity. For one thing, following
too closely reduces 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.
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 convex. The vehicle you just
passed may seem to be farther 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.
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hur Driving and the Road
114
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 Oldsmobile’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, ease your
foot
off the accelerator pedal and
quickly steer the way you want the
vehicle to go. If you start steering
quicldy enough, your vehicle may
straighten out. Always be ready for a
second skid if it occurs.
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 surface 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.
Remember: Any anti-lock braking
system (ABS) helps avoid only the
braking skid.
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Driving Guidelines
This multipurpose passknger vehicle is
defined as a utility vehicle in Consumer
Information Regulations issued by the
National Highway Traffic Safety
Administration (NHTSA) of the United
States Department of Transportation.
Utility vehicles have higher ground
clearance and a narrower track to make
them capable of performing in a wide
variety of off-road applications. Specific
design characteristics give them a
higher center of gravity than ordinary
cars. An advantage of the higher ground
clearance is a better view of the road
allowing you to anticipate problems.
They are not designed for cornering at
the same speeds as conventional
2-
wheel drive vehicles any more than low-
slung sports cars are designed to
perform satisfactorily under off-road
conditions.
If at all possible, avoid sharp
turns or abrupt maneuvers. As with
other vehicles of this type, failure to
operate this vehicle correctly may result
in loss of control or vehicle rollover.
3perating Your Bravada Off
Paved Roads
Many of the same design features that
help make Bravada responsive on paved
roads during poor weather conditions
-
features like the locking rear axle and all-
wheel drive - help make it much better
suited for off-road use than a
conventional passenger
car. Its higher
ground clearance also helps Bravada step
over some off-road obstacles. But
Bravada doesn’t have features like special
underbody shielding and a transfer case
low gear range, things that are usually
thought necessary for extended or severe
off-road service.
This guide is for
operating your Bravada off paved roads.
Also, see Anti-Lock Brakes in the Index.
Off-road driving can be great fun. But it
does have some definite hazards. The
greatest of these is the terrain itself.
“Off-roading” means you’ve left the
great North American road system
behind. Traffic lanes aren’t marked.
Curves aren’t banked. There are no
road signs. Surfaces can be slippery,
rough, uphill or downhill. In short,
you’ve gone right back to nature.
Off-road driving involves some new
skills. And that’s why it’s very
important that
you read this guide.
You’ll find many driving tips and
suggestions. These will help malte your
off-road driving safer and more
enjoyable.
Before You Go Ofi-Roading
There are some things to do before you
go out. For example, be sure to have all
necessary maintenance and service
work done. Be sure you read all the
information about your all-wheel drive
vehicle in this manual.
Is there enough
fuel? Is the spare tire fully inflated? Are
the fluid levels up where they should
be? What are the local laws that apply
to off-roading where you’ll be driving?
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Driving Uphi//
Once you decide you can safely drive
up the hill, you need to take some
special steps.
Use a low gear and get a firm grip on
the steering wheel.
Get a smooth start up the hill and try
to maintain your speed. Don’t use
more power than you need, because
you don’t want your wheels to start
spinning or sliding.
Try to drive straight up the hill if at all
possible. If the path twists and turns,
you might want to find another route.
Ease up on your speed as you
approach the top of the.hill..
Attach a flag to the vehicle to make
you more visible to approaching
traffic on trails or hills.
Sound the horn as you approach the
top of the hill to let opposing traffic
know you’re there.
Use your headlights even during the
day. They make you more visible to
oncoming traffic.
Q: What should I do if my vehicle
stalls,
or is about to stall, and I
can’t make it up the hill?
A: If this happens, there are some
things you should
do, and there are
some things you must not do. First,
here’s what you
should do:
Push the brake pedal to stop the
vehicle and keep it from rolling
backwards. Also, apply the parking
brake.
the transmission into reverse,
release the parking brake, and
slowly back down the hill in reverse.
If your engine has stopped running,
you’ll need
to restart it. With the
brake pedal depressed and the
parking brake still applied, shift the
transmission to
P (Park) and
restart the engine. Then, shift to
reverse, release the parking brake,
and slowly back down the hill as
straight as possible in reverse.
As you are backing down the hill,
put
your left hand on the steering
wheel at the
12 o’clock position.
This way, you’ll be able to tell if
your wheels are straight and
maneuver
as you back down. It’s
best that you back down the hill
with your wheels straight rather
than in the left or right direction.
Turning the wheel too far
to the
left or right will increase the
possibility
of a rollover.
If your engine is still running, shift
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Your Driving and the Road
120
Here are some things you must not
do if you stall, or are about to stall,
when going up a hill.
Never attempt to prevent a stall by
shifting into
N (Neutral) to “rev-
up” the engine and regain forward
momentum. This won’t work. Your
vehicle will roll backwards very
quickly and you could go out of
control. Instead, apply the regular
brake to stop the vehicle. Then
apply the parking brake. Shift into
reverse, release the parking brake,
and slowly back straight down.
Never attempt to turn around if
you are about to stall when going
up a hill. If the hill is steep enough
to stall your vehicle, it’s steep
enough to cause you to roll over
if
you turn around. If you can’t make
it up the hill, you must back
straight down the hill.
Q: Suppose, after stalling, I try to back
down the hill and decide
I just
can’t do it. What should
I do?
A: Set the parking brake, put your
transmission
in P (Park), and turn off
the engine. Leave the vehicle and go get some nelp. Exit
on the uphill side
and stay clear of the path the vehicle
would take
if it rolled downhill.
Driving Downhill
When off-roading takes you downhill,
you’ll want to consider a number of
things:
How steep is the downhill? Will I be
able
to maintain vehicle control?
What’s the surface like? Smooth?
Rough? Slippery? Hard-packed dirt?
Gravel?
Are there hidden surface obstacles?
Ruts? Logs? Boulders?
What’s at the bottom of the hill? Is
there a hidden creek bank or even a
river bottom with large rocks?
If you decide you can go down a hill
safely, then try to keep your vehicle
headed straight down, and use a low
gear. This way, engine drag can help
your brakes and they won’t have to do
all the work. Descend slowly, keeping
your vehicle under control at all times.
Q: Are there some things I should not
do when driving down a hill?
A: Yes! These are important because if
you ignore them you could lose
control and have a serious accident.
When driving downhill, avoid turns
that take you across the incline of
the hill.
A hill that’s not too steep
to drive down may be too steep to
drive across. You could roll over
if
you don’t drive straight down.
transmission in
N (Neutral). This
is called “free-wheeling.” Your
brakes will have to do all the work
and could overheat and fade.
Never go downhill with the
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