2009 CHEVROLET CORVETTE Owners Manual

Antilock Brake System (ABS)
This vehicle has the Antilock Brake System (ABS), an
advanced electronic braking system that will help
prevent a braking skid.
When the engine is started and the vehicle begins to
drive away, ABS checks itself. A momentary motor
or clicking noise might be heard while this test is going
on, and it might even be noticed that the brake pedal
moves a little. This is normal.
If there is a problem with
ABS, this warning light
stays on. SeeAntilock
Brake System (ABS)
Warning Light on
page 3-39.Let us say the road is wet and you are driving safely.
Suddenly, an animal jumps out in front of you. You slam
on the brakes and continue braking. Here is what
happens with ABS:
A computer senses that the wheels are slowing down.
If one of the wheels is about to stop rolling, the computer
will separately work the brakes at each wheel.
ABS can change the brake pressure to each wheel, as
required, faster than any driver could. This can help
the driver steer around the obstacle while braking hard.
As the brakes are applied, the computer keeps
receiving updates on wheel speed and controls braking
pressure accordingly.
Remember: ABS does not change the time needed to get
a foot up to the brake pedal or always decrease stopping
distance. If you get too close to the vehicle in front of you,
there will not be enough time to apply the brakes if that
vehicle suddenly slows or stops. Always leave enough
room up ahead to stop, even with ABS.
4-5

Using ABS
Do not pump the brakes. Just hold the brake pedal
down rmly and let antilock work. A motor or clicking
noise might be heard and the brake pedal might be felt
to move a little during a stop, but this is normal.
Braking in Emergencies
ABS allows the driver to steer and brake at the same
time. In many emergencies, steering can help more than
even the very best braking.
Traction Control System (TCS)
The vehicle has a Traction Control System (TCS) that
limits wheel spin. This is especially useful in slippery
road conditions. The system operates only if it senses
that the rear wheels are spinning too much or are
beginning to lose traction. When this happens, the
system works the rear brakes and reduces engine power
(by closing the throttle and managing engine spark) to
limit wheel spin.The TRACTION SYSTEM ACTIVE message displays on
the Driver Information Center (DIC) when TCS is limiting
wheel spin. SeeDIC Warnings and Messages on
page 3-54. The system may be heard or felt while it is
working, but this is normal.
If cruise control is being used when TCS begins to
limit wheel spin, the cruise control will automatically
disengage. Cruise control may be reengaged when road
conditions allow. SeeCruise Control on page 3-10.
The SERVICE TRACTION
SYSTEM message and
the TCS warning light will
come on if there is a
problem with TCS. See
DIC Warnings and
Messages on page 3-54.
When this light and the SERVICE TRACTION SYSTEM
message are on, the system will not limit wheel spin.
Adjust your driving accordingly.
4-6

TCS automatically comes on whenever the vehicle is
started. To limit wheel spin, especially in slippery
road conditions, the system should always be left on.
TCS can be turned off if needed.
To turn the system off,
press the button located
on the console.
The system can be turned on or off at any time by
pressing the ACTIVE HANDLING button. The DIC will
display the appropriate message when the button
is pushed.Notice:When traction control is turned off, or
Competitive Driving Mode is active, it is possible to
lose traction. If you attempt to shift with the drive
wheels spinning with a loss of traction, it is possible
to cause damage to the transmission. Do not attempt
to shift when the drive wheels do not have traction.
Damage caused by misuse of the vehicle is not
covered. See the warranty book for additional
information.
Adding non-dealer/non-retailer accessories can affect
the vehicle’s performance. SeeAccessories and
Modifications on page 5-3for more information.
4-7

Active Handling System
The Active Handling System is a computer controlled
system that helps the driver maintain directional control
of the vehicle in difficult driving conditions. This is
accomplished by selectively applying any one of the
vehicle’s brakes.
The ACTIVE HANDLING message will come on when the
system is operating. SeeDIC Warnings and Messages
on page 3-54for more information. The system may be
heard or felt while it is working. This is normal.
The SERVICE ACTIVE
HANDLING SYSTEM
message will be displayed,
the instrument cluster light
will come on, and a sound
will be heard if there is a
problem with the system.
SeeDIC Warnings and Messages on page 3-54for
more information.When this light and the SERVICE ACTIVE HANDLING
SYSTEM message are on, the system is not
operational. Adjust your driving accordingly.
The Active Handling System comes on automatically
whenever the vehicle is started. To help maintain
directional control of the vehicle, the system should
always be left on. The system can be turned off needed.
If the Active Handling System is turned off, the Traction
Control System will also be turned off. Adjust your driving
accordingly.
To turn the system off,
press the ACTIVE
HANDLING button on the
console for ve seconds.
The system can be
turned back on at any time
by pressing the button.
The DIC will display
the appropriate message
when the button is pushed.
4-8

If the Tire Pressure Monitor (TPM) system detects a at
tire and the Driver Information Center (DIC) displays
TIRE FLAT, or if the TPM system is malfunctioning and
the DIC displays SERVICE TIRE MONITOR, the
Active Handling System will be affected as follows:
The Active Handling System cannot be turned off by
the driver.
If the Active Handling System is off, it will be turned
on automatically.
Competitive Driving Mode is unavailable.
The Active Handling System will feel different in
aiding and maintaining directional control.
Competitive Driving Mode
The driver can select this optional handling mode by
pressing the ACTIVE HANDLING button on the console
quickly two times. COMPETITIVE DRIVING MODE will
be displayed in the DIC. Competitive Driving Mode allows
the driver to have full control of the rear wheels while the
Active Handling System helps maintain directional control
of the vehicle by selective brake application. This involves
less intervention than with both the Active Handling
System and Traction Control Systems on. The Traction
Control System will not be operating. Adjust your driving
accordingly.This light will be on when
the vehicle is in the
Competitive Driving Mode.
When the ACTIVE HANDLING button is pressed
again, the Active Handling and Traction Control Systems
will be on. The TRACTION SYSTEM AND ACTIVE
HANDLING-ON message will be displayed briey in the
DIC and a chime will be heard.
Notice:When traction control is turned off, or
Competitive Driving Mode is active, it is possible to
lose traction. If you attempt to shift with the drive
wheels spinning with a loss of traction, it is possible
to cause damage to the transmission. Do not attempt
to shift when the drive wheels do not have traction.
Damage caused by misuse of the vehicle is not
covered. See the warranty book for additional
information.
4-9

Limited-Slip Rear Axle
Vehicles with a limited-slip rear axle can give more
traction on snow, mud, ice, sand or gravel. It works like
a standard axle most of the time, but when traction
is low, this feature allows the drive wheel with the most
traction to move the vehicle.
Selective Ride Control
The vehicle may have a ride control system called
Magnetic Selective Ride Control. The system provides
the following performance benets:
Reduced Impact Harshness
Improved Road Isolation
Improved High-Speed Stability
Improved Handling Response
Better Control of Body Ride MotionsThis knob is located on the
center console. Turn it to
select the suspension
of your choice.
TOUR:Use for normal city and highway driving. This
setting provides a smooth, soft ride.
SPORT:Use where road conditions or personal
preference demand more control. This setting provides
more “feel”, or response to the road conditions.
4-10

The setting can be changed at any time. Based on road
conditions, steering wheel angle and the vehicle speed,
the system automatically adjusts to provide the best
handling while providing a smooth ride. The Tour and
Sport modes will feel similar on a smooth road. Select a
new setting whenever driving conditions change.
Three Driver Information Center (DIC) messages
(SERVICE RIDE CONTROL, SHOCKS INOPERATIVE
and MAXIMUM SPEED 80 MPH (129 KM/H) display
when a malfunction occurs with the Selective Ride
Control system. Refer toDIC Warnings and Messages
on page 3-54for more information.
Steering
Power Steering
If power steering assist is lost because the engine
stops or the system is not functioning, the vehicle can
be steered but it will take more effort.
Magnetic Speed Variable Assist
Steering System
This system continuously adjusts the effort felt when
steering at all vehicle speeds. It provides ease when
parking, yet a rm, solid feel at highway speeds.
Steering Tips
It is important to take curves at a reasonable speed.
Traction in a curve depends on the condition of the tires
and the road surface, the angle at which the curve is
banked, and vehicle speed. While in a curve, speed is
the one factor that can be controlled.
If there is a need to reduce speed, do it before entering
the curve, while the front wheels are straight.
Try to adjust the speed so you can drive through the
curve. Maintain a reasonable, steady speed. Wait to
accelerate until out of the curve, and then accelerate
gently into the straightaway.
4-11

Steering in Emergencies
There are times when steering can be more effective
than braking. For example, you come over a hill and nd
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. These problems can
be avoided by braking — if you can stop in time. But
sometimes you cannot stop in time because there is no
room. That is the time for evasive action — steering
around the problem.
The vehicle can perform very well in emergencies like
these. First apply the brakes. SeeBraking on page 4-4.
It is better to remove as much speed as possible from a
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 holding the steering wheel at the
recommended 9 and 3 o’clock positions, it can be turned
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.
The fact that such emergency situations are always
possible is a good reason to practice defensive driving
at all times and wear safety belts properly.
4-12