2011 CHEVROLET CORVETTE traction control

Black plate (38,1)Chevrolet Corvette Owner Manual - 2011
9-38 Driving and Operating
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
if 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 until TRACTION SYSTEM
AND ACTIVE HANDLING
SYSTEM—OFF is displayed.
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. If the Tire Pressure Monitor (TPM)
system detects a flat 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
or Performance Traction
Management is unavailable.
.The Active Handling System
will feel different in aiding and
maintaining directional control.
Competitive Driving Mode
Competitive Driving Mode,
Performance Traction Management,
and Launch Control are systems
designed to allow increased
performance while accelerating
and/or cornering. This is
accomplished by regulating and
optimizing the engine, brakes,
and suspension performance.
These modes are for use at a
closed course race track and are
not intended for use on public
roads. They will not compensate
for a driver
’s inexperience or lack
of familiarity with the race track.
Drivers who prefer to allow the
system to have more control of
the engine, brake, and suspension
are advised to turn the normal
traction control and active handling
systems on. See Racing or Other
Competitive Driving on page 9‑7
for more information.

Black plate (39,1)Chevrolet Corvette Owner Manual - 2011
Driving and Operating 9-39
Notice:Do not attempt to shift
when the drive wheels are
spinning and do not have
traction. This may cause damage
to the transmission. Damage
caused by misuse of the vehicle
is not covered by the vehicle
warranty. See the warranty book
for additional information.
Competitive Driving Mode
(Except ZR1)
Competitive Driving Mode allows
full engine power while the Active
Handling System helps maintain
directional control of the vehicle
by selective brake application.
In this mode, TCS is off and
Launch Control is available.
Adjust your driving style to account
for the available engine power.
See Launch Control later in this
section.
This light is on when the vehicle is
in the Competitive Driving Mode.
This optional handling mode can be
selected by pressing the ACTIVE
HANDLING button on the console
quickly two times. COMPETITIVE
DRIVING MODE displays in the
Driver Information Center (DIC).
See Ride Control System Messages
on page 5‑44 for more information.
When the ACTIVE HANDLING
button is pressed again, the Active
Handling and TCS systems are on.
The TRACTION SYSTEM AND
ACTIVE HANDLING-ON message
displays briefly in the DIC and a
chime is heard.
Performance Traction
Management (ZR1)
Performance Traction Management
integrates the Traction Control,
Active Handling and Selective
Ride Control systems to provide
improved and consistent
performance when cornering.
The amount of available engine
power is based on the mode
selected, track conditions, driver
skill, and the radius of each corner.
This light is on when the vehicle
is in the Performance Traction
Management Mode.

Black plate (40,1)Chevrolet Corvette Owner Manual - 2011
9-40 Driving and Operating
This optional handling mode
can be selected by pressing the
ACTIVE HANDLING button on the
console quickly two times. PERF
TRAC 1 - WET ACTIVE HANDLING
ON displays in the DIC.
To experience the performance
benefit of this system, after entering
a curve and at the point where
the driver would normally start
to increase acceleration, the
accelerator pedal can be fully
pressed. The Performance Traction
Management system will modify the
level of engine power for a smooth
and consistent corner exit.
To select a mode while in
Performance Traction Management,
turn the knob located on the
console.
The Performance Traction
Management system contains
five modes. These modes are
selected by turning the Selective
Ride Control/Performance Traction
Management knob on the center
console. The driver scrolls up
or down through modes 1–5 by
rotating the knob to the right or left.The following is a DIC display
description and the recommended
usage of each mode:
PERF TRAC 1
–WET ACTIVE
HANDLING ON
.Intended for all driver skill levels
.Wet or damp conditions
only —not intended for use in
heavy rain or standing water
.Active Handling is on and engine
power is reduced based on
conditions
PERF TRAC 2 –DRY ACTIVE
HANDLING ON
.For use by less experienced
drivers or while learning a new
track
.Dry conditions only
.Active Handling is on and engine
power is slightly reduced

Black plate (41,1)Chevrolet Corvette Owner Manual - 2011
Driving and Operating 9-41
PERF TRAC 3–SPORT
ACTIVE HANDLING ON
.For use by drivers who are
familiar with the track
.Dry conditions only
.Requires more driving skill than
mode 2
.Active Handling is on and more
engine power is available than in
mode 2
PERF TRAC 4 –SPORT
ACTIVE HANDLING OFF
.For use by drivers who are
familiar with the track
.Dry conditions only
.Requires more driving skill than
modes 2 or 3
.Active Handling is off and
available engine power is the
same as mode 3
PERF TRAC 5 –RACE ACTIVE
HANDLING OFF
.For use by experienced drivers
who are familiar with the track
.Dry conditions only
.Requires more driving skill than
in other modes
.Active Handling is off and engine
power is available for maximum
cornering speed
Press and release the ACTIVE
HANDLING button to turn off
Performance Traction Management
and return to the Active Handling
and Traction Control Systems.
The TRACTION SYSTEM AND
ACTIVE HANDLING-ON message
displays briefly in the DIC and a
chime is heard.
Launch Control
A Launch Control feature is
available, within Competitive
Driving Mode (except ZR1) or
Performance Traction Management
(ZR1), on vehicles with a manual
transmission to allow the driver
to achieve high levels of vehicle
acceleration in a straight line.
Launch Control is a form of traction
control that manages tire spin
while launching the vehicle. This
feature is intended for use during
closed course race events where
consistent zero to sixty and quarter
mile times are desirable.

Black plate (42,1)Chevrolet Corvette Owner Manual - 2011
9-42 Driving and Operating
Launch Control is only available
when the following criteria are met:
.Competitive Driving Mode is
selected (except ZR1) or any
of the Performance Traction
Management modes are
selected (ZR1). The TCS
light comes on the instrument
panel and the appropriate
DIC message displays.
.The vehicle is not moving.
.The steering wheel is pointing
straight.
.The clutch is pressed and the
vehicle is in first gear.
.The accelerator pedal is rapidly
applied to wide open throttle.
The Launch Control feature will
initially limit engine speed as
the driver rapidly applies the accelerator pedal to wide open
throttle. A smooth, quick release of
the clutch, while maintaining the
fully pressed accelerator pedal, will
manage wheel slip. Complete
shifts as described in
Manual
Transmission on page 9‑32.
After the vehicle is launched, the
system continues in Competitive
Mode (except ZR1) or Performance
Traction Management (ZR1).
Competitive Driving Mode,
Performance Traction Management,
and Launch Control are systems
designed for a closed course race
track and not intended for use on
public roads. The systems are not
intended to compensate for lack of
driver experience or familiarity with
the race track.
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 benefits:
.Reduced Impact Harshness
.Improved Road Isolation
.Improved High-Speed Stability
.Improved Handling Response
.Better Control of Body Ride
Motions

Black plate (44,1)Chevrolet Corvette Owner Manual - 2011
9-44 Driving and Operating
SPORT:Use where road conditions
or personal preference demand
more control. This setting provides
more “feel”, or response to the road
conditions.
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.
The Selective Ride knob will not
display the Tour or Sport setting
when the Performance Traction
Management mode is selected. When this mode is selected,
turning the Selective Ride knob
will change the Performance
Traction Management mode
and the suspension setting
will be determined automatically.
See
Competitive Driving Mode on
page 9‑38 for more information.
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 to Ride Control System
Messages on page 5‑44 for more
information.Cruise Control
With cruise control, a speed of
about 40 km/h (25 mph) or more can
be maintained without keeping your
foot on the accelerator. Cruise
control does not work at speeds
below about 40 km/h (25 mph).
Cruise control will not work if the
parking brake is set, or if the master
cylinder brake fluid level is low.
{WARNING
Cruise control can be dangerous
where you cannot drive safely at
a steady speed. So, do not use
the 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 excessive wheel slip, and
you could lose control. Do not use
cruise control on slippery roads.

Black plate (45,1)Chevrolet Corvette Owner Manual - 2011
Driving and Operating 9-45
If the vehicle is in cruise control,
and has the Traction Control
System (TCS), and it begins to
limit wheel spin, the cruise control
automatically disengages. See
Traction Control System (TCS) on
page 9‑36. When road conditions
allow the cruise control to be safely
used again, it can be turned
back on.
The vehicle has cruise control.
9(Off):Turns the system off.
R(On):Turns the system on.
+(Resume/Accelerate): Use to
make the vehicle accelerate or
resume a previously set speed.
T(Set): Press this button at the
end of the lever to set the speed.
Setting Cruise Control
If the cruise button is on when not in
use, it could get bumped and go into
cruise when not desired. Keep the
cruise control switch off when cruise
is not being used.
1. Move the cruise control switch to on.
2. Get up to the speed desired.
3. Press
Tat the end of the lever
and release it.
4. Take your foot off the accelerator pedal.
When the cruise control is engaged,
the CRUISE SET TO XX MPH
message displays on the Driver
Information Center (DIC). See
Cruise Control Messages on
page 5‑38. Resuming a Set Speed
If the cruise control is set at a
desired speed and then the brakes
are applied, the cruise control is
disengaged without erasing the set
speed from memory.
Once the vehicle speed reaches
about 40 km/h (25 mph) or more,
move the cruise control switch
briefly from
RtoS. The vehicles
returns to the previous set speed
and stays there.
If the switch is held at resume/
accelerate the vehicle keeps going
faster until the switch is released or
the brake is applied. Do not hold the
switch at resume/accelerate, unless
you want the vehicle to go faster.

Black plate (4,1)Chevrolet Corvette Owner Manual - 2011
10-4 Vehicle Care
Accessories and
Modifications
Adding non‐dealer accessories
to the vehicle can affect vehicle
performance and safety, including
such things as airbags, braking,
stability, ride and handling,
emissions systems, aerodynamics,
durability, and electronic systems
like antilock brakes, traction control,
and stability control. Some of
these accessories could even
cause malfunction or damage not
covered by the vehicle warranty.Damage to vehicle components
resulting from the installation or use
of non‐GM certified parts, including
control module modifications, is not
covered under the terms of the
vehicle warranty and may affect
remaining warranty coverage for
affected parts.
GM Accessories are designed to
complement and function with other
systems on the vehicle. Your GM
dealer can accessorize the vehicle
using genuine GM Accessories.
When you go to your GM dealer
and ask for GM Accessories,
you will know that GM-trained and
supported service technicians will
perform the work using genuine
GM Accessories.
Also, see
Adding Equipment to the
Airbag-Equipped Vehicle on
page 3‑35.