1994 OLDSMOBILE BRAVADA tires

Your Driving and the Road
108
“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 a
higher 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. That’s especially
true for brain, spinal cord and heart
injuries. That means that
if anyone who
has been drinking
- driver or
passenger
- is in a crash, the chance of
being killed or permanently disabled is
higher than
if that person had not been
drinking. And we’ve already seen that
the chance
of a crash itself is higher for
drinking drivers. 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,
Wt Is All-Wheel Drive?
All the Wheels, All the Time
Bravada has a unique system called all-
wheel drive
(AWD) . Simply stated,
AWD supplies power from the engine to
all four wheels, all the time. It works in
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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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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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Your Driving and the Road
I
114
If you don’t know, you should check
with law enforcement people in the
area. Will you be
on someone’s private
land?
If so, be sure to get the necessary
permission.
Loading Your Vehicle for Off-Road
Driving
There are some important things to
remember about how to load your
vehicle.
The heaviest things should be on the
load floor and forward of your rear
axle. Put heavier items as far forward
as you can.
Be sure the load is secured properly,
so driving on the off-road terrain
doesn’t toss things around.
You’ll find other important information
in this manual. See
Vehicle Loading,
Luggage Carrier
and Tires in the Index.
Traveling to Remote Areas
It makes sense to plan your trip,
especially when going to a remote area.
Know the terrain and plan your route.
You are much less likely to get bad
surprises. Get accurate maps of trails
and terrain. Try to learn of any blocked
or closed roads.
It’s also a good idea to travel with at
least one other vehicle. If something
happens to one of them, the other can
help quickly.
Getting Familiar with Off-Road
Driving
It’s a good idea to practice in an area
that’s safe and close to home before you
go into the wilderness. Off-road driving
does require some new and different
driving skills. Here’s what we mean.
Tune your senses to different kinds of
signals. Your eyes, for example, need to
constantly sweep the terrain for
unexpected obstacles. Your ears need to
listen for unusual tire or engine sounds.
With your
arms, hands, feet, and body
you’ll need to respond to vibrations and
vehicle bounce.
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Q: Am I likely to stall when going
downhill?
A It’s much more likely to happen
going uphill. But if it happens going
downhill, here’s what to do.
Stop your vehicle by applying the
regular brakes. Apply the parking
brake.
Shift to P (Park) and, while still
braking, restart the engine.
Shift back to a low gear, release the
parking brake, and drive straight
down.
If the engine won’t start, get out
and get help.
Driving Across an Incline
Sooner or later, an off-road trail will
probably go across the incline of a
hill. If
this happens, you have to decide
whether to
try to drive across the incline.
Here are some things to consider:
A hill that can be driven straight up or
down may be too steep to drive
across. When you go straight up or
down
a hill, the length of the wheel
base (the distance from the front wheels
to the rear wheels) reduces the
likelihood the vehicle will tumble end
over end. But when you drive across
an incline, the much more narrow
track width (the distance between the
left and right wheels) may not prevent
the vehicle from tilting and rolling
over. Also, driving across an incline
puts more weight
on the downhill
wheels. This could cause
a downhill
slide or a rollover.
Surface conditions can be a problem
when you drive across a hill. Loose
gravel, muddy spots, or even wet grass
can cause your tires to slip sideways,
downhill. If the vehicle slips sideways,
it can hit something that will trip it (a
rock, a rut, etc.) and roll over.
Hidden obstacles can make the
steepness of the incline even worse. If
you drive across a rock with the uphill
wheels, or if the downhill wheels drop
into a rut or depression, your vehicle
can tilt even more.
For reasons like these, you need to
decide carefully whether to
try to drive across
an incline. Just because the trail
goes across the incline doesn’t mean
you have to drive it. The last vehicle to
try it might have rolled over.
Q: What if I’m driving across an
incline that’s not too steep, but
I
hit some loose gravel and start to
slide downhill. What should I do?
A: If you feel your vehicle starting to
slide sideways, turn downhill. This
should help straighten out the
vehicle and prevent the side slipping.
However, a much better way to
prevent this is
to get out and “walk
the course”
so you know what the
surface is like before you drive it.
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Your Driving and the Road
122
Stalling on an Mine
If your vehicle stalls when you’re
crossing an incline, be sure you (and
your passengers) get
out on the uphill
side, even if the door there is harder to
open. If you get out on the downhill
side and the vehicle starts to roll over,
you’ll be right in its path.
If you have to walk down the slope, stay
out of the path the vehicle will take if it
does roll over.
Driving In Mud, Sand, Snow, Or
Ice
When you drive in mud, snow or sand,
your wheels won’t get good traction.
You can’t accelerate as quickly, turning
is more difficult, and you’ll need longer
braking distances.
It’s best to use a low gear when you’re
in mud -the deeper the mud, the
lower the gear. In really deep mud, the
idea is to keep your vehicle moving
so
you don’t get stuck.
When you drive on sand, you’ll sense a
change in wheel traction. But it will
depend upon how loosely packed the
sand
is. On loosely packed sand (as on
beaches or sand dunes) your tires will tend
to sink into the sand. This has an
effect on steering, accelerating, and
braking. You may want to reduce the
air pressure in your tires slightly when
driving on sand. This will improve
traction.
Hard packed snow and ice offer the
worst tire traction.
On these surfaces,
it’s very easy to lose control.
On wet
ice, for example, the traction is
so poor
that you will have difficulty
accelerating. And
if you do get moving,
poor steering and difficult braking can
cause you to slide
out of control.
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Driving In Water
Light rain causes no special off-road
driving problems. But heavy rain can
mean flash flooding, and flood waters
demand extreme caution.
Find
out how deep the water is before
you drive through it. If it’s deep enough
to cover your wheel hubs, axles, or
exhaust pipe, don’t
try it - you
probably won’t get through.
Also, water
that deep can damage your axle and
other vehicle parts.
If the water isn’t too deep, then drive
through it slowly. At fast speeds, water
splashes on your ignition system and
your vehicle can stall. Stalling can also
occur
if you get your tailpipe under
water.
And, as long as your tailpipe is
under water, you’ll never be able to
start your engine. When you go through
water, remember that when your brakes
get wet, it may take you longer to stop.
After OtY-Road Driving
Remove any brush or debris that has
collected on the underbody, chassis or
under the hood. These accumulations
can be a fire hazard.
After operation
in mud or sand, have
the brake linings cleaned and checked.
These substances can cause glazing and
uneven braking. Check the body
structure, steering, suspension, wheels,
tires, and exhaust system for damage.
Also, check the fuel lines and cooling
system for any leakage.
Your vehicle
will require more frequent
service due to off-road use. Refer to the
Maintenance Schedule for additional
information.
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1 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 get even less
traction. It’s always wise to go slower
and be cautious
if rain starts to fall
while you are driving. The surface may
get wet suddenly when your reflexes arc
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.
It’s 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.
I
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.
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