A Cruise control can be
L dangerous where you can’t
I drive safely at a steady speed. So,
don’t use your cruise control on
winding roads or in heavy traffic.
Cruise control can be dangerous
on slippery roads. On such roads,
fast changes in tire traction can
cause needless wheel spinning,
and you could lose control. Don’t
use cruise control on slippery
roads.
7 TO Set Cruise Control
~ 1. Move the cruise control switch to
ON.
GAU I ION
If you leave your cruise
control switch
ON when
you’re not using cruise, you might
hit a button and
go into cruise
when you don’t want to. You could
be startled and even lose control.
Keep the cruise control switch
OFF
until you want to use it.
-- --
2 Get up to the speed you want.
3. Push in the SET button at the end of
4. Take your foot off the accelerator
the
lever
and release it.
pedal.
71
Your Driving ad the Road
Steering Tips-Driving on Curves
154
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 jaws 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 banlted, 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 apply
the brakes. Both control systems-
steering and braking-have to do their
work where the tires meet the road.
Unless you have four-wheel anti-lock
brakes, adding the hard braking can
demand too much at those places.
You
can lose control.
The same thing can happen if you’re
steering through a sharp curve and 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 brake or
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.
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.
~
~~ Your Driving and the Road
158
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 (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
1
traction, try your best to avoid sudden
steering, acceleration, or braldng (including engine braking by shifting to a
lower gear). Any sudden changes could
Sewice & Appearance Care
256
1 Uniform Tire Quality
Grading
The following information relates to the
system developed by the United States
National Highway Traffic Safety
Administration which grades tires by
treadwear, traction and temperature
performance. (This applies only to
vehicles sold in the United States.)
Treadwear
The treadwear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled
conditions on a specified government
test course. For example, a tire graded
150 would wear one and a half (1%)
times as well on the government course
as a tire graded
100. The relative
performance of tires depends upon the actual
conditions
of their use, however,
and may depart significantly from the
norm due to variations
in driving habits,
service practices and dif€erences in road
characteristics and climate.
Traction-A, B, C
The traction grades, from highest to
lowest are:
A, B, and C. They represent
the tire’s ability to stop on wet
pavement as measured under controlled
conditions on specified government test
surfaces
of asphalt and concrete. A tire
marked
C may have poor traction
performance.
Warning: The traction grade assigned
to this tire is based on braking (straight-
ahead) traction tests and does not
include cornering (turning) traction.
Temperature-A, B, C
The temperature grades are A (the
highest),
B, and C, representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled
conditions on a specified indoor
laboratory test wheel. Sustained high
temperature can cause the material of
the tire to degenerate and reduce tire
life, and excessive temperature can lead
to sudden tire failure. The grade
C
corresponds to a level of performance
which all passenger car tires must meet
under the Federal Motor Vehicle Safety
Standard No.
109. Grades B and A
represent higher levels of performance
on the laboratory test wheel than the
minimum required by law.