2005 PONTIAC VIBE traction control

Steering Tips
Driving on Curves
It is important to take curves at a reasonable speed.
A lot of the “driver lost control” accidents mentioned on
the news happen on curves.
Here is 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 is no traction, inertia
will keep the vehicle going in the same direction.
If you have ever tried to steer a vehicle on wet ice,
you will 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 are in a curve, speed is the one factor you
can control.
Suppose you are 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 youhave 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 are 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 conditions. Under
less favorable conditions you will 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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Loss of Control
Let us review what driving experts say about what
happens when the three control systems — brakes,
steering, and acceleration — do not have enough friction
where the tires meet the road to do what the driver
has asked.
In any emergency, do not 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 vehicle’s
three control systems. In the braking skid, your wheels
are not 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 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
will 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.
If you have the anti-lock braking system, remember:
It helps avoid only the braking skid. If you do not have
anti-lock, then in a braking skid, where the wheels
are no longer rolling, release enough pressure on the
brakes to get the wheels rolling again. This restores
steering control. Push the brake pedal down steadily
when you have to stop suddenly. As long as the wheels
are rolling, you will have steering control.
4-16

Buying New Tires
To nd out what kind and size of tires you need, look at
the Tire and Loading Information label. For more
information about this label and where to nd it,
seeLoading Your Vehicle on page 4-32.
Make sure the replacements are the same size,
load capacity, speed rating and construction type
(bias, bias-belted or radial) as your original tires.
{CAUTION:
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. It’s all right to drive with your
compact spare temporarily, it was developed
for use on your vehicle. SeeCompact Spare
Tire on page 5-86.
{CAUTION:
If you use bias-ply tires on your vehicle, the
wheel rim anges could develop cracks after
many miles of driving. A tire and/or wheel
could fail suddenly, causing a crash. Use only
radial-ply tires with the wheels on your vehicle.
Uniform Tire Quality Grading
Quality grades can be found where applicable on the
tire sidewall between tread shoulder and maximum
selection width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the Unites 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), or to some
limited-production tires.
5-70

While the tires available on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to federal safety
requirements.
Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specied government test course.
For example, a tire graded 150 would wear one and
a half (1
12) 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 signicantly from the norm
due to variations in driving habits, service practices and
differences in road characteristics and climate.
Traction — AA, A, B, C
The traction grades, from highest to lowest, are AA, A,
B, and C. Those grades represent the tire’s ability
to stop on wet pavement as measured under controlled
conditions on specied 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 straight-ahead braking
traction tests, and does not include acceleration,
cornering, hydroplaning, or peak traction characteristics.
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 specied 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.
Warning: The temperature grade for this tire is
established for a tire that is properly inated and not
overloaded. Excessive speed, underination, or
excessive loading, either separately or in combination,
can cause heat buildup and possible tire failure.
5-71

Light (cont.)
Highbeam On.............................................3-40
Lights On Reminder.....................................3-39
Low Fuel Warning.......................................3-41
Low Tire Pressure Warning Light...................3-33
Low Washer Fluid Warning...........................3-40
Malfunction Indicator....................................3-35
Oil Pressure...............................................3-38
Overdrive Off..............................................3-40
Passenger Airbag Status Indicator..................3-30
Safety Belt Reminder...................................3-28
Stabilitrak
®Indicator.....................................3-34
Taillamp Indicator.........................................3-39
TCS Warning Light......................................3-34
Traction Control System (TCS) Warning..........3-34
Lighting
Entry.........................................................3-16
Locks
Door........................................................... 2-7
Power Door.................................................. 2-8
Programmable Automatic Door Locks............... 2-9
Rear Door Security Locks.............................2-10
Loss of Control...............................................4-16
Low Fuel Warning Light...................................3-41
Low Washer Fluid Warning Light.......................3-40
M
Maintenance, Normal Replacement Parts..........5-102
Maintenance Schedule
At Each Fuel Fill.........................................6-13
At Least Once a Month................................6-13
At Least Once a Year..................................6-14
At Least Twice a Year..................................6-14
Brake System Inspection..............................6-18
Engine Cooling System Inspection.................6-18
Exhaust System Inspection...........................6-17
Fuel System Inspection................................6-17
How This Section is Organized....................... 6-3
Introduction.................................................. 6-2
Maintenance Requirements............................. 6-2
Part A - Scheduled Maintenance Services......... 6-4
Part B - Owner Checks and Services.............6-13
Part C - Periodic Maintenance Inspections......6-17
Part D - Recommended Fluids and
Lubricants...............................................6-19
Part E - Maintenance Record........................6-21
Scheduled Maintenance................................. 6-4
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection..........................6-17
Throttle System Inspection............................6-18
Using Your................................................... 6-4
Your Vehicle and the Environment................... 6-2
8

Tires.............................................................5-57
Aluminum Wheels, Cleaning..........................5-92
Buying New Tires........................................5-70
Chains.......................................................5-73
Changing a Flat Tire....................................5-75
Cleaning....................................................5-92
Compact Spare Tire.....................................5-86
If a Tire Goes Flat.......................................5-74
Ination -- Tire Pressure...............................5-64
Inspection and Rotation................................5-68
Installing the Spare Tire................................5-78
Pressure Monitor System..............................5-65
Removing the Flat Tire.................................5-78
Removing the Spare Tire and Tools...............5-76
Storing a Flat or Spare Tire and Tools............5-84
Tire Sidewall Labelling..................................5-58
Tire Terminology and Denitions....................5-61
Uniform Tire Quality Grading.........................5-70
Wheel Alignment and Tire Balance.................5-72
Wheel Replacement.....................................5-72
When It Is Time for New Tires......................5-69
Top Strap......................................................1-35
Top Strap Anchor Location...............................1-37Towing
Recreational Vehicle.....................................4-37
Towing a Trailer..........................................4-40
Your Vehicle...............................................4-37
Traction
Control System (TCS).................................... 4-9
Control System Warning Light.......................3-34
Stabilitrak
®System......................................4-10
Transaxle
Fluid, Automatic...........................................5-23
Fluid, Manual..............................................5-26
Transaxle Operation, Automatic.........................2-22
Transaxle Operation, Manual............................2-25
Trip Odometers..............................................3-27
Turn and Lane-Change Signals.......................... 3-8
Turn Signal/Multifunction Lever........................... 3-7
U
Understanding Radio Reception........................3-64
Uniform Tire Quality Grading............................5-70
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