1993 PONTIAC GRAND-AM Owners Manual

Your Driving and the Road
Variable Effort Steering (omoN)
This steering system provides lighter
steering effort for parking and at low
vehicle speeds. Steering effort will
increase at higher
speeds for improved
road feel.
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.
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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.
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 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 Pontiac 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.
Depending on your speed, this can
be
rather violent for an unprepared 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.
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Your Driving and the Road
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 94 turn
until the right front tire contacts the
pavement edge. Then turn your steering
wheel to go straight down the roadway.
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 front 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.
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.
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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
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.
0 Watch for traffic signs, pavement
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. Or, you can
use flash-to-pass. See the
Index under
Flash-to-Pass.
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.
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.
If other cars are lined up to pass a
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Your Driving and the Road
Passing (CONT.)
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.)
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Try not to pass more than one vehicle
at a time on two-lane roads.
Reconsider before passing the next
vehicle.
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.
Don’t overtake a slowly moving
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.
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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 Pontiac’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 foot 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 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 change 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
Driving at Night
Night driving is more dangerous than
day driving. One reason is that some
drivers are likely to be impaired-by
alcohol or drugs, with night vision
problems, or by fatigue.
Here are some tips on night driving.
Drive defensively. Remember, this is
the most dangerous time.
Don’t drink and drive. (See the Index
under Drunken Driving for more on
this problem.)
Adjust your inside rearview mirror to
reduce the glare from headlights
behind you.
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Since you can’t see as well, you may
need to slow down and keep more
space between you and other vehicles.
It’s hard to tell how fast the vehicle
ahead is going just by looking at its
taillights.
speed roads. Your headlights can light
up only
so much road ahead.
Slow down, especially on higher
In remote areas, watch for animals.
If you’re tired, pull off the road in a
safe place and rest.
Night Vision
No one can see as well at night as in the
daytime. But as we get older these
differences increase.
A 50-year-old
driver may require at least twice as
much light to see the same thing at night
as a 20-year-old.
What you do
in the daytime can also
affect your night vision. For example, if
you spend the day in bright sunshine you
are wise to wear sunglasses. Your eyes
will have less trouble adjusting to night.
But if you’re driving, don’t wear
sunglasses at night. They may cut down
on glare from headlights, but they also
make a lot of things invisible that should
remain visible-such as parked cars,
obstacles, pedestrians, or even trains
blocking railway crossings. You may
want to
put on your sunglasses after you
have pulled into a brightly-lighted
service or refreshment area. Eyes
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shielded from that glare may adjust
more quickly to darkness back on the
road. But be sure to remove your
sunglasses before you leave the service
area.
You can be temporarily blinded by
approaching lights. It can take a second
or two, or even several seconds, for your
eyes to readjust to the dark. When you
are faced with severe glare (as from a
driver who doesn’t lower the high
beams, or a vehicle with misaimed
headlights), slow down a little. Avoid
staring directly into the approaching
lights. If there is a line of opposing
traffic, make occasional glances over the line of headlights to make certain that
one of the vehicles isn’t starting to move
into your lane. Once you are past the
bright lights, give your eyes time to
~ readjust before resuming speed.
High Beams
If the vehicle approaching you has its
high beams on, signal by flicking yours
to high and then back to low beam. This
is the usual signal to lower the headlight
beams. If the other driver still doesn’t lower the beams, resist the temptation to
put your high beams on. This only
makes two half-blinded drivers.
On a freeway, use your high beams only
in remote areas where you won’t impair
approaching drivers. In some places,
like cities, using high beams is illegal.
When you follow another vehicle on a
freeway or highway, use low beams.
True, most vehicles now have day-night
mirrors that enable the driver to reduce
glare. But outside mirrors are not of this
type and high beams from behind can
bother the driver ahead.
A Few More Night Driving
Suggestions
Keep your windshield and all the glass
on your vehicle clean-inside and out.
Glare at night is made much worse by
dirt on the glass. Even the inside
of the
glass can build up a film caused by dust.
Tobacco smoke also makes inside glass
surfaces very filmy and can be a vision
hazard
if it’s left there.
Dirty glass makes lights dazzle and
flash more than clean glass would,
making the pupils
of your eyes contract
repeatedly. You might even want to keep
a cloth and some glass cleaner in your
vehicle if you need to clean your glass
frequently.
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