2012 CHEVROLET CORVETTE traction control

Black plate (6,1)Chevrolet Corvette Owner Manual - 2012
9-6 Driving and Operating
Defensive drivers avoid most skids
by taking reasonable care suited to
existing conditions, and by not
overdriving those conditions.
But skids are always possible.
If the vehicle starts to slide, follow
these suggestions:
.Ease your foot off the
accelerator pedal and quickly
steer the way you want the
vehicle to go. The vehicle may
straighten out. Be ready for a
second skid if it occurs.
.Slow down and adjust your
driving according to weather
conditions. Stopping distance
can be longer and vehicle
control can be affected when
traction is reduced by water,
snow, ice, gravel, or other
material on the road. 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.
.Try to avoid sudden steering,
acceleration, or braking,
including reducing vehicle speed
by shifting to a lower gear. Any
sudden changes could cause
the tires to slide.
Remember: Antilock brakes help
avoid only the braking skid.
Racing or Other
Competitive Driving
Racing or competitive driving may
affect the vehicle warranty. See the
warranty book before using the
vehicle for racing or other
competitive driving.
Notice: If you use the vehicle
for racing or other competitive
driving, the engine may use more
oil than it would with normal use.
Low oil levels can damage the
engine. For information on how to
add oil, see Engine Oil on
page 10‑16. Z06, ZR1, and Grand Sport Coupe
manual transmission only: Be
sure to check the oil level often
during racing or other
competitive driving and keep the
level at or near the upper mark
that shows the proper operating
range on the engine oil dipstick.
Except Z06, ZR1, and Grand Sport
Coupe manual transmission:
Be sure to check the oil level
often during racing or other
competitive driving and keep the
level at or near 1 L (1 qt) above
the upper mark that shows the
proper operating range on the
engine oil dipstick. After the
competitive driving, remove
excess oil so that the level on the
dipstick is not above the upper
mark that shows the proper
operating range.
Z06, ZR1, and Grand Sport Coupe
manual transmission Only: For
racing or competitive driving, it is
recommended that the brake fluid
be replaced with a high performance
brake fluid that has a dry boiling

Black plate (8,1)Chevrolet Corvette Owner Manual - 2012
9-8 Driving and Operating
Street High Performance Brake
Burnishing Procedure
Run this procedure in a safe
manner and in compliance with all
local and state ordinances/laws
regarding motor vehicle operation.
Run this procedure only on dry
pavement.
1. From a stop, accelerate asrapidly as possible without
activating traction control to a
speed of 97 kph (60 mph).
2. Use enough pedal force to completely stop the vehicle in
four to five seconds. If ABS
activates, braking is too hard.
3. Repeat Steps 1 and 2, five times. This should take
about 10 minutes.
4. After completing the 50 stops, cool the brakes by driving for
8 km (5 mi) at 97 kph (60 mph). As with all high performance brake
systems, some amount of brake
squeal is normal.
Racing/Track Brake Burnish
Procedure
To prepare the ZR1 and Z06 with
Z07 Performance Package brake
system for track events and racing,
the Street High Performance Brake
Burnish as described previously
should be completed.
In addition to completing the Street
High Performance Brake Burnishing
Procedure, the following procedure
needs to be completed to make the
ZR1 and Z06 with Z07 Performance
Package brake system ready for
track events and racing.
This procedure should only be
run on a track and only on dry
pavement.
Notice:
Brake pedal fade will
occur during this track burnish
procedure and can cause brake
pedal travel and force to increase.
This could extend stopping
distance until the brakes are
fully burnished.
1. Drive a normal first lap and not too aggressive.
2. Laps 2 and 3 should be gradually driven faster and more
aggressive, while allowing for
reduced brake output and
increased stopping distance due
to brake fade.
3. Lap 4 as near to full speed, while allowing for reduced brake
output and increased stopping
distance due to brake fade.
4. Laps 5 and 6 should be cool down laps
5. Lap 7 should be normal driving or an easy out lap.

Black plate (9,1)Chevrolet Corvette Owner Manual - 2012
Driving and Operating 9-9
Driving on Wet Roads
Rain and wet roads can reduce
vehicle traction and affect your
ability to stop and accelerate.
Always drive slower in these types
of driving conditions and avoid
driving through large puddles and
deep‐standing or flowing water.
{WARNING
Wet brakes can cause crashes.
They might not work as well in a
quick stop and could cause
pulling to one side. You could
lose control of the vehicle.
After driving through a large
puddle of water or a car/vehicle
wash, lightly apply the brake
pedal until the brakes work
normally.(Continued)
WARNING (Continued)
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause the
vehicle to be carried away. If this
happens, you and other vehicle
occupants could drown. Do not
ignore police warnings and be
very cautious about trying to
drive through flowing water.
Hydroplaning
Hydroplaning is dangerous. Water
can build up under the vehicle's
tires so they actually ride on the
water. This can happen if the road is
wet enough and you are going fast
enough. When the vehicle is
hydroplaning, it has little or no
contact with the road.
There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.Allow extra following distance.
.Pass with caution.
.Keep windshield wiping
equipment in good shape.
.Keep the windshield washer fluid
reservoir filled.
.Have good tires with proper
tread depth. SeeTires on
page 10‑58.
.Turn off cruise control.

Black plate (11,1)Chevrolet Corvette Owner Manual - 2012
Driving and Operating 9-11
{WARNING
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. The brakes will have
to do all the work of slowing down
and they could get so hot that
they would not work well. You
would then have poor braking or
even none going down a hill. You
could crash. Always have the
engine running and the vehicle in
gear when going downhill.
.Stay in your own lane. Do not
swing wide or cut across the
center of the road. Drive at
speeds that let you stay in
your own lane.
.Be alert on top of hills,
something could be in your
lane (stalled car, accident).
.Pay attention to special road
signs (falling rocks area, winding
roads, long grades, passing or
no-passing zones) and take
appropriate action.
Winter Driving
Driving on Snow or Ice
Drive carefully when there is snow
or ice between the tires and the
road, creating less traction or grip.
Wet ice can occur at about 0°C
(32°F) when freezing rain begins to
fall, resulting in even less traction.
Avoid driving on wet ice or in
freezing rain until roads can be
treated with salt or sand.
Drive with caution, whatever the
condition. Accelerate gently so
traction is not lost. Accelerating too
quickly causes the wheels to spin
and makes the surface under the
tires slick, so there is even less
traction.Try not to break the fragile traction.
If you accelerate too fast, the drive
wheels will spin and polish the
surface under the tires even more.
The
Antilock Brake System (ABS)
on page 9‑35 improves vehicle
stability during hard stops on
slippery roads, but apply the brakes
sooner than when on dry pavement.
Allow greater following distance on
any slippery road and watch for
slippery spots. Icy patches can
occur on otherwise clear roads in
shaded areas. The surface of a
curve or an overpass can remain icy
when the surrounding roads are
clear. Avoid sudden steering
maneuvers and braking while
on ice.
Turn off cruise control on slippery
surfaces.

Black plate (29,1)Chevrolet Corvette Owner Manual - 2012
Driving and Operating 9-29
Manual Mode
Manual Paddle Shift
While in S (Sport Mode), the paddles
located on the steering wheel can
be used to manually up-shift or
down-shift the transmission.
The Manual Paddle Shift system is
activated from S (Sport Mode) by
pushing the paddle, above the
steering wheel spokes, to up-shift to
the next gear, or pulling on the
paddle, behind the steering wheel
spokes, to down-shift to the
next gear.When accelerating the vehicle from
a stop in snowy and icy conditions,
you may want to shift to 2 (Second)
or 3 (Third) gear. A higher gear
allows you to gain more traction on
slippery surfaces. If traction control
is active, upshifts are delayed to
increase your control of the vehicle.
See
Traction Control System (TCS)
on page 9‑36 Traction Control
System (TCS).
The Manual Paddle Shift system
can be deactivated by moving the
shift lever from S (Sport Mode) back
to D (Drive), or by holding either
up‐shift paddle for more than
one second.
The driver may choose to briefly
activate the Manual Paddle Shift
system while in D (Drive). Tapping
either the upshift or downshift
controls will place the transmission
in Manual Paddle Shift mode. The driver may then exit Manual
Paddle Shift mode by holding
either upshift control for more
than one second. The system will
return to automatic shifting after
10 seconds of cruising at a steady
speed and no manual shifts,
or when the vehicle comes
to a stop.
While the Manual Paddle Shift gear
selection system is active, the
transmission will automatically
downshift through the gears as the
vehicle slows. The transmission
will select 2 (Second) gear as the
vehicle stops. From a stop, the
vehicle will start from and hold
2 (Second) gear unless the driver
manually paddle shifts into a
different gear or selects D (Drive).

Black plate (36,1)Chevrolet Corvette Owner Manual - 2012
9-36 Driving and Operating
Parking Brake
The parking brake lever is located to
the right of the center console.
To set the parking brake, hold the
brake pedal down. Pull the parking
brake lever up. If the ignition is on,
the brake system warning light will
come on.
To release the parking brake, hold
the brake pedal down. Then push
the release button in as you move
the parking brake lever all the
way down.
Notice:Driving with the parking
brake on can overheat the brake
system and cause premature
wear or damage to brake system
parts. Make sure that the parking
brake is fully released and the
brake warning light is off before
driving.
Brake Assist
This vehicle has a brake assist
feature designed to assist the driver
in stopping or decreasing vehicle
speed in emergency driving
conditions. This feature uses the
stability system hydraulic brake
control module to supplement
the power brake system under
conditions where the driver has
quickly and forcefully applied the
brake pedal in an attempt to quickly
stop or slow down the vehicle.
The stability system hydraulic brake
control module increases brake
pressure at each corner of the
vehicle until the ABS activates.
Minor brake pedal pulsation or
pedal movement during this time
is normal and the driver should
continue to apply the brake pedal
as the driving situation dictates.
The brake assist feature will
automatically disengage when the
brake pedal is released or brake
pedal pressure is quickly
decreased.
Ride Control Systems
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. See Ride
Control System Messages on
page 5‑45. The system may be
heard or felt while it is working, but
this is normal.

Black plate (37,1)Chevrolet Corvette Owner Manual - 2012
Driving and Operating 9-37
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 9‑45.
The SERVICE TRACTION SYSTEM
message and the Active Handling
System light will come on if there is
a problem with TCS. See Ride
Control System Messages on
page 5‑45.
When this light and the SERVICE
TRACTION SYSTEM message are
on, the system will not limit wheel
spin. Adjust your driving
accordingly. 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
Active Handling button located on
the console.
The Traction Off light comes on.
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 accessories can
affect the vehicle's performance.
See Accessories and Modifications
on page 10‑4 for more information.

Black plate (38,1)Chevrolet Corvette Owner Manual - 2012
9-38 Driving and Operating
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. SeeRide Control System
Messages on page 5‑45 for more
information. The system may be
heard or felt while it is working.
This is normal.
The SERVICE ACTIVE HANDLING
SYSTEM message is displayed on
the DIC, the Active Handling System light comes on, and a sound
is heard if there is a problem with
the system.
See
Ride Control System Messages
on page 5‑45 for 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 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
on the DIC.
The StabiliTrak Off light will
come on.
The system can be turned back on
at any time by pressing the Active
Handling button. The DIC will
display the appropriate message
when the button is pushed.