2007 CHEVROLET CORVETTE traction control

Driving On Snow or Ice
Most of the time, those places where the tires
meet the road probably have good traction.
However, if there is snow or ice between the tires
and the road, you can have a very slippery
situation. You will have a lot less traction, or grip,
and will need to be very careful.What is the worst time for this? Wet ice. Very cold
snow or ice can be slick and hard to drive on.
But wet ice can be even more trouble because it
may offer the least traction of all. You can get
wet ice when it is about freezing, 32°F (0°C), and
freezing rain begins to fall. Try to avoid driving
on wet ice until salt and sand crews can get there.
Whatever the condition — smooth ice, packed,
blowing, or loose snow — drive with caution.
Traction control improves your ability to accelerate
when driving on a slippery road. Even though your
vehicle has a traction control system, you will want
to slow down and adjust your driving to the road
conditions. Under certain conditions, you may
want to turn the traction control system off, such as
when driving through deep snow and loose gravel,
to help maintain vehicle motion at lower speeds.
SeeTraction Control System (TCS) on page 281.
The Active Handling System may also activate.
SeeActive Handling System on page 283.
305

Rocking Your Vehicle to Get It Out
First, turn the steering wheel left and right to
clear the area around the front wheels. Turn the
traction control system off. SeeTraction Control
System (TCS) on page 281. Then shift back
and forth between REVERSE (R) and a forward
gear, spinning the wheels as little as possible.
For a manual transmission, shift slowly
between either FIRST (1) or SECOND (2) and
REVERSE (R), allowing the wheels to stop
before shifting into gear. To prevent transmission
wear, wait until the wheels stop spinning before
shifting gears. Release the accelerator pedal while
you shift, and press lightly on the accelerator
pedal when the transmission is in gear. By slowly
spinning the wheels in the forward and reverse
directions, you will cause a rocking motion
that could free your vehicle. If that does not get
your vehicle out after a few tries, it might need to
be towed out. If your vehicle does need to be
towed out, seeTowing Your Vehicle on page 315.
Loading Your Vehicle
It is very important to know how much weight your
vehicle can carry. This weight is called the vehicle
capacity weight and includes the weight of all
occupants, cargo and all nonfactory-installed
options. Two labels on your vehicle show how much
weight it may properly carry, the Tire and Loading
Information label and the Certication label.
{CAUTION:
Do not load your vehicle any heavier than
the Gross Vehicle Weight Rating (GVWR),
or either the maximum front or rear Gross
Axle Weight Rating (GAWR). If you do,
parts on your vehicle can break, and it
can change the way your vehicle handles.
These could cause you to lose control
and crash. Also, overloading can shorten
the life of your vehicle.
309

Service
Your dealer knows your vehicle best and
wants you to be happy with it. We hope you will
go to your dealer for all your service needs.
You will get genuine GM parts and GM-trained
and supported service people.
We hope you will want to keep your GM vehicle
all GM. Genuine GM parts have one of these
marks:
Accessories and Modications
When you add non-GM accessories to your vehicle
they can affect your vehicle’s performance and
safety, including such things as, airbags, braking,
stability, ride and handling, emissions systems,
aerodynamics, durability, and electronic systems
like anti-lock brakes, traction control and
stability control. Some of these accessories may
even cause malfunction or damage not covered
by warranty.
GM Accessories are designed to complement
and function with other systems on your vehicle.
Your GM dealer/retailer can accessorize your
vehicle using genuine GM Accessories. When
you go to your GM dealer/retailer and ask for
GM Accessories, you will know that GM-trained
and supported service technicians will perform
the work using genuine GM Accessories.
319

Buying New Tires
GM has developed and matched specic tires
for your vehicle. The original equipment tires
installed on your vehicle, when it was new,
were designed to meet General Motors Tire
Performance Criteria Specication (TPC spec)
system rating. If you need replacement tires,
GM strongly recommends that you get tires with
the same TPC Spec rating. This way, your vehicle
will continue to have tires that are designed to
give the same performance and vehicle safety,
during normal use, as the original tires.
GM’s exclusive TPC Spec system considers over
a dozen critical specications that impact the
overall performance of your vehicle, including
brake system performance, ride and handling,
traction control, and tire pressure monitoring
performance. GM’s TPC Spec number is molded
onto the tire’s sidewall by the tire manufacturer.
If the tires have an all-season tread design,
the TPC spec number will be followed by an
MS for mud and snow. SeeTire Sidewall
Labeling on page 380for additional information.Winter tires with the same speed rating as your
original equipment tires may not be available for H,
V, W, Y, and ZR speed rated tires. If you choose
snow tires with a lower speed rating, never
exceed the tire’s maximum speed capability.
{CAUTION:
Mixing tires could cause you to lose
control while driving. If you mix tires of
different sizes (other than those originally
installed on your vehicle), brands, or
types (radial and bias-belted tires), the
vehicle may not handle properly, and
you could have a crash. Using tires of
different sizes (other than those originally
installed on your vehicle), brands or
types, may also cause damage to your
vehicle. Be sure to use the correct size,
brand, and type tires on all four wheels.
394

Different Size Tires and Wheels
If you add wheels or tires that are a different size
than your original equipment wheels and tires,
this may affect the way your vehicle performs,
including its braking, ride and handling
characteristics, stability, and resistance to
rollover. Additionally, if your vehicle has electronic
systems such as, anti-lock brakes, traction
control, and electronic stability control, the
performance of these systems can be affected.
{CAUTION:
If you add different sized wheels, your
vehicle may not provide an acceptable
level of performance and safety if tires
not recommended for those wheels are
selected. You may increase the chance
that you will crash and suffer serious
injury. Only use GM specic wheel and
tire systems developed for your vehicle,
and have them properly installed by a
GM certied technician.SeeBuying New Tires on page 394and
Accessories and Modications on page 319
for additional information.
Uniform Tire Quality Grading
Quality grades can be found where applicable
on the tire sidewall between tread shoulder
and maximum section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National
Highway Traffic Safety Administration (NHTSA),
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
(UTQG) 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.
396

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 and additional General
Motors Tire Performance Criteria (TPC) standards.
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 (1.5) 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.
397

Tire Chains
{CAUTION:
Do not use tire chains. There is not
enough clearance. Tire chains used on
a vehicle without the proper amount
of clearance can cause damage to the
brakes, suspension, or other vehicle
parts. The area damaged by the tire
chains could cause you to lose control
of your vehicle and you or others
may be injured in a crash.
CAUTION: (Continued)
CAUTION: (Continued)
Use another type of traction device
only if its manufacturer recommends it
for use on your vehicle and tire size
combination and road conditions.
Follow that manufacturer’s instructions.
To help avoid damage to your vehicle,
drive slowly, re-adjust or remove the
device if it is contacting your vehicle,
and do not spin your wheels. If you
do nd traction devices that will t,
install them on the rear tires.
401

Light
Active Handling System........................... 198
Airbag Readiness..................................... 191
Anti-Lock Brake System Warning............. 197
Brake System Warning............................. 196
Fog Lamp................................................ 205
Highbeam On.......................................... 206
Lights On Reminder................................. 206
Malfunction Indicator................................ 200
One-to-Four Shift..................................... 195
Passenger Airbag Status Indicator............ 192
Safety Belt Reminder............................... 190
Security................................................... 205
TCS Warning Light.................................. 197
Tire Pressure........................................... 199
Traction Control System (TCS) Warning.... 197
Lighting
Entry/Exit................................................. 173Lights
Exterior Lamps......................................... 168
Flash-to-Pass........................................... 162
High/Low Beam Changer......................... 162
On Reminder........................................... 169
Limited-Slip Rear Axle................................. 285
Loading Your Vehicle................................... 309
Lockout Protection......................................... 82
Locks
Automatic Door Lock ................................. 81
Door.......................................................... 78
Lockout Protection..................................... 82
Power Door............................................... 80
Programmable Automatic Door Unlock....... 81
Loss of Control........................................... 291
Lumbar
Power and Side Bolsters............................. 9
481