Downloaded from www.Manualslib.com manuals search engine 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.
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 314 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
314 of a second, a vehicle
moving at
60 mph (100 km/h) 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; and the condition of your brakes.
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Downloaded from www.Manualslib.com manuals search engine The ASR OFF warning light will come on and stay on.
If the ASR system is limiting wheel spin when you
press the button, the system won’t turn
off right away.
It will wait until there’s
no longer a current need to limit
wheel spin.
You can turn the system
back on at any time by
pressing the button again. The
ASR OFF warning
light should go off.
If your car is equipped with P245bOZR16 tires, the
ASR system will automatically turn off at speeds above
108 mph (174 Mh). (The ASR OFF warning light
will not come
on.) When the vehicle speed drops below
103 mph (166 kmh) the system will automatically come
on again.
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 is not functioning, you can steer but
it will take much more effort.
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Downloaded from www.Manualslib.com manuals search engine 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. Unless you have
ASR 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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Downloaded from www.Manualslib.com manuals search engine 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 Chevrolet’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 is best handled by easing your foot off
the accelerator pedal.
If you have the
ASR system, remember: It helps avoid
only the acceleration skid. If you
do not have ASR, or
if the system is off, then an
acceleration skid
is also 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 quickly 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 brake system
(ABS) helps
avoid only the braking skid.
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Downloaded from www.Manualslib.com manuals search engine 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.
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 are
tuned for driving
on dry pavement.
4-18
Downloaded from www.Manualslib.com manuals search engine 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.
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. Hydroplaning doesn’t
happen often. 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 cbn see reflections from trees, telephone
poles, or other vt$ucles, and raindrops “dimple” the
water’s surface, +ere could be hydroplaning.
Hydroplaning usually happens at higher speeds. There
just isn’t a hard ahd fast rule about hydroplaning. The
best advice is to slow down when
it is raining.
I
Some Other Rainy Weather Tips
Turn on your low-beam headlamps -- not just your
parking lamps
-- to help make you more visible to
others.
0 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.,
Have good tires with proper tread depth. (See
“Tires” in
the Index.)
4-19
Downloaded from www.Manualslib.com manuals search engine Once you are moving on the freeway, make certain you
allow a reasonable following distance. Expect to move
slightly slower at night.
When you want to leave the freeway, move
to the proper
lane well in advance.
If you miss your exit do not, under
any circumstances, stop and back up. Drive
on to the
next exit.
The exit ramp can be curved, sometimes quite sharply.
The exit speed is usually posted.
Reduce your speed according to your speedometer,
not
to your sense of motion. After driving for any distance
at higher speeds, you may tend to think you are going
slower than you actually are.
Before Leaving on a Long Trip
Make sure you’re ready. Try to be well rested. If you
must start when you’re not fresh -- such as after a day’s
work
-- don’t plan to make too many miles that first part
of the journey. Wear comfortable clothing and shoes
you
can easily drive in.
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
Chevrolet dealers 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:
0
0
0
0
0
0
0
Windshield Washer Fluid: Is the reservoir full? Are
all windows clean inside and outside?
Wiper Blades: Are they in good shape?
Fuel, Engine Oil, Other Fluids: Have you checked
all levels?
Lumps: 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?
Maps: Do you have up-to-date maps?
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Downloaded from www.Manualslib.com manuals search engine 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.
What can
you do about highway hypnosis? First, be
aware that
it can happen.
Then here are some tips:
a
a
a
Make sure your vehicle is well ventilated, with a
comfortably cool interior.
Keep your eyes moving. Scan
the road ahead and to
the sides. Check your rearview mirrors and your
instruments frequently.
If you get sleepy, pull off the road into a rest, service,
or parking area and take
a nap, get some exercise, or
both. For safety, treat drowsiness on the highway
as
an emergency.
Hill and Mountain Roads
c
Driving on steep hills or mountains is different from
driving in flat or rolling terrain.
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