traction control PONTIAC PONTIAC 1996 Owners Manual

Cruise Control (Option)
With cruise control, you can maintain a speed of about
25 mph (40km/h) or more without keeping your foot on
the accelerator.
This can really help on long trips. Cniise
control does not work at
speeds below about 25 mph
(40 km/h).
When you apply your brakes, the cruise control- shuts off.
Cruise control can be dangerous where you
can’t drive safely at
a steady speed. So,
don’t use your cruise control on winding
roads or in heavy traffic.
slippery roads. 00 such road& f@t change& ’.
in tire traction can muse neediem wheel
spinning, and you
could lose conirol, Don’t
use cruise. eontrol on slippery roads.
Cruise controi can be dangerous on
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Braking in Emergencies
At some time, nearly every driver gets into a situation
that requires hard braking.
If you have anti-lock, you can steer and brake at the
same time. However,
if you don’t have anti-lock, your
first reaction
-- to hit the brake pedal hard and hold it
down
-- may be the wrong thing to do. Your wheels can
stop rolling. Once they do, the vehicle can’t respond to
your steering. Momentum will
carry it in whatever
direction it was headed when the wheels stopped rolling.
That could be off the road, into the very thing you were
trying to avoid, or into traffic.
If you don’t have anti-lock, use
a “squeeze” braking
technique.
This will give you maximum braking while
maintaining steering control. You do this by pushing on
the brake pedal with steadily increasing pressure.
In an emergency, you will probably want to squeeze the
brakes hard without locking the wheels. If you hear or
feel the wheels sliding, ease
off the brake pedal. This
will help you retain steering control. (If you
do have
anti-lock, it’s different: see “Anti-Lock Brakes” in
the Index.)
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.
Variable Assist Steering
This steering system provides lighter steering effort for
parking and when driving at low 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 gqing in the same direction. If you’ve ever
. . ,,: ., .. %
A,. .c .. j: tried to steer a vehicle on wet ice, you’ll understand this.
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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 apply the brakes. Both control
systems
-- steering and braking -- have to do ~eir
work where the tires meet
the road. Unless you have
four-wheel anti-lock brakes, adding
the hard braking
can demand too much of 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? Ease 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 conditiolls. Under less
favorable conditions you’ll want to go slower.
If you need to reduce your speed as you approach a
curve, do it b’efore 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.
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
problem
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
-- but, unless you have
anti-lock, not enough
to lock your wheels. (See
“Braking in Emergencies” earlier in this section.) It
is
better t’o 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.
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.. . . ,.- , . . .. .
. .. :.
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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 MI
the road to make a “mirrored surface” -- and slow down
when you have any doubt.
If you have the anti-lock braking system, remember: It
helps avoid
only the braking skid. If you do not have
antblock, then
in a braking skid (where the wheels are
Driving at Night
no longer rolling), release enough pressure on the brakes
to get the wheels rolling again. This restores steering
control. Push the hake pedal
down steadily when you
have to
stop suddenly. As long as the wheels are rolling, Night
driving is more dangerous than day driving. One
reason is
that some drivers are likely to be impaired -- by
alcohol QT drugs, with night vision problems, or by fatigue.
you
will have steering control.
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Buying New Tires
To find out what lund and size of tires you need, look at
the Tire-Loading Information.labe1.
The tires installed on your vehicle w
a Tire Performance Criteria Specification ("PC Spec)
number on each .tire's sidewall. When you get
new tires,
get ones with that same
TPC Spec number. That way
your vehicle will continue to have tires that are designed
to give proper endurance, handling, speed rating,
traction, ride and other things during normal sen;ice on
your vehicle.
If your tires have an all-season tread
design, the
TPC number will be followed by an "MS" '
(for mud and snow).
If you ever replace your tires with tho'se not having a
TPC Spec number, make sure they are the same size,
load range, speed rating and construction type (bias,
bias-belted or radial) as your original tires.
Mixing tires could cause you to lose control while
driving.
If ,you mix tires of different sizes or types
(radial and bias-belted tires), the vehicle may not
handle properly, and you could have
a crash.
Using tires
of different sizes may also cause
damage to your vehicle. Be sure to use the same
size and type tires
on all wheels. ,( ' . ; I :* ' '.i i.!;:; i
It's all right to drive with your compact spare,
though. It was developed for use on your vehicle.
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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.) The
grades are molded on the sidewalls of most passenger
car tires. The Uniform Tire Quality Grading system does
not apply to deep tread, winter-type snow tires,
space-saver or temporary use spare tires, tires with
nominal rim diameters of
10 to 12 inches (25 to 30 cm),
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
(1 1/2) 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 differences in
road characteristics and climate.
I.
or to some limited-production tires. ;,*?;;x.,< .
. .'-I '.'Traction -- A, B, C
While the tires available on General Motors passenger 1
cars and light trucks may vary with respect to these The traction grades, from highest to lowest, are A, B, and
grades,, they must also conform to Federal safety
C, and they represent the tire's' ability to stop on wet
requirements and additional General Motors Tire pavement as measured under controlled conditioa
on
Peiformance Criteria (TPC) standards. 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 (straightahead) traction tests and does not
include cornering (turning) traction.
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Specifications and Capacities .......... ... 6-73
Specifications. Engine
........................... 6-74
Speech Impaired. Customer Assistance
............... 8-4
Speedometer
................................... 2-45
SRS
......................................... 1-23
Starter Switch Check
.......................... 7-38
Starting Your Engine
............................. 2- 11
Steam
........................................ 5- 12
Steering
....................................... 4-9
Column
Lock Check .......................... 7-39
In Emergencies
............................... 4-10
Power
....................................... 4-9
Tips
......................................... 4-9
Variable Assist
........ ; ....................... 4-9
Wheel, Tilt
................................... 2-26
Wheel Touch Controls
......................... 3 -2 1
Storage Compartments
........................... 2-38
Storage, Vehicle
................................. 6-30
Stuck
In Sand. Mud, Ice or Snow .................. 5-34
SunVisors .................................... 2-41
Supplemental Restraint System
.................... 1-23
Sustained Interior Illumination
.................... 2-34
Symbols. Vehicle
.................................. v
Tachometer .................................. 2-45
Taillamp Bulb Replacement
....................... 6-46
Tapeplayercare
............................... 3-23
Temperature
Knob, Climate Control System ........... 3-1
Theft-Deterrent Feature,
CD Player ................ 3- 19
Theft
.......................................... 2-8
Stains. Cleaning
.......... ........... 6-57
Sunroof ....................................... 2-42
THEFTLOCK
............. ......... 3-19
Thermostat .................................... 6-24
Third Gear. Automatic Transaxle
................... 2-16
Tilt Steering Wheel
............................. 2-26
Time. Setting the
................................ 3-5
Tire Chains .................................... 6-56
Tire Loading
................... ......... 4-28
Tire-Loading Information Label
................... 4-28
Tires
......................................... 6-48
Alignment and Balance ........................ 6-54
Buying New
................................. 6-52
Chains
........... ................... 6-56
Changing
a Flat .............................. 5-23
Cleaning
.................................... 6-62
Compact Spare
............................... 5-33
Inflation
..................................... 6-49
Inflation Check
............................... 7-36
Inspection and Rotation
........................ 6-50
Loading
.... ................................. 4-28
Pressure ..................................... 6-49
Temperature ................................. 6-54
Traction
.................................... 6-53
Treadwear
................................... 6-53
Uniform Quality Grading
....................... 6-53
Wear Indicators
.............................. 6-51
Wheel Replacement
............................ 6-54
When It’s Time for New . . ....... .... 6-51
TopStrap
..................................... 1-45
Torque Lock
................................. ., .. 2-22
Torque, Wheel Nut
.............................. 5-30
TowingaTrailer
................................ 4-30
Towing Your Vehicle
............................. 5-7
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