automatic transmission CHEVROLET CORVETTE 2007 6.G User Guide

Notice:Your engine is designed to work with
the electronics in your vehicle. If you add
electrical parts or accessories, you could
change the way the engine operates. Before
adding electrical equipment, check with
your dealer. If you do not, your engine might
not perform properly. Any resulting damage
would not be covered by your vehicle’s
warranty.
Stopping Your Engine
If your vehicle has an automatic transmission,
move the shift lever to PARK (P) and press the
Acc. (Off/Accessory) button located on the
instrument panel. If the shift lever is not in
PARK (P), the engine shuts off and the vehicle
goes into the Accessory Mode. The DIC displays
SHIFT TO PARK. Once the shifter is moved to
PARK (P), the vehicle turns off. If your vehicle
has a manual transmission, it is recommended
that you move the shift lever to REVERSE (R) and
set the parking brake after you turn off the engine
by pressing the Acc. (Off/Accessory) button.If the keyless access transmitter is not detected
inside the vehicle when it is turned to off, the DIC
displays NO FOB – OFF OR RUN?.
SeeDIC Warnings and Messages on page 214for
more information.
Engine Coolant Heater
Your vehicle may have an engine coolant heater.
In very cold weather, 0°F (−18°C) or colder,
the engine coolant heater can help. You will get
easier starting and better fuel economy during
engine warm-up.
Usually, the coolant heater should be plugged
in a minimum of four hours prior to starting your
vehicle. At temperatures above 32°F (0°C), use
of the coolant heater is not required. Your vehicle
may also have an internal thermostat in the
plug end of the cord. This will prevent operation of
the engine coolant heater when the temperature
is at or above 0°F (−18°C) as noted on the cord.
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Automatic Transmission Operation
There are several
different positions for
your shift lever.
PARK (P):This position locks your rear wheels.
It is the best position to use when you start your
engine because your vehicle cannot move easily.{CAUTION:
It is dangerous to get out of your vehicle
if the shift lever is not fully in PARK (P)
with the parking brake rmly set. Your
vehicle can roll.
Do not leave your vehicle when the engine
is running unless you have to. If you have
left the engine running, the vehicle can
move suddenly. You or others could be
injured. To be sure your vehicle will not
move, even when you are on fairly level
ground, always set your parking brake
and move the shift lever to PARK (P).
SeeShifting Into Park (P) (Automatic
Transmission) on page 103.
Be sure the shift lever is fully in PARK (P)
before starting the engine. Your vehicle has an
automatic transmission shift lock control system.
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You have to fully apply your regular brakes rst
and then press the shift lever button before
you can shift from PARK (P) when the vehicle
is running. If you cannot shift out of PARK (P),
ease pressure on the shift lever and push the shift
lever all the way into PARK (P) as you maintain
brake application. Then press the shift lever button
and move the shift lever into another gear. See
Shifting Out of Park (P) (Automatic Transmission)
on page 104.
REVERSE (R):Use this gear to back up.
Notice:Shifting to REVERSE (R) while your
vehicle is moving forward could damage
the transmission. The repairs would not
be covered by your warranty. Shift to
REVERSE (R) only after your vehicle is
stopped.
To rock your vehicle back and forth to get out
of snow, ice, or sand without damaging your
transmission, seeIf Your Vehicle is Stuck in
Sand, Mud, Ice, or Snow on page 308.NEUTRAL (N):In this position, your engine does
not connect with the wheels. To restart when
you are already moving, use NEUTRAL (N) only.
If your vehicle needs towing, seeTowing Your
Vehicle on page 315.
{CAUTION:
Shifting into a drive gear while your
engine is running at high speed is
dangerous. Unless your foot is rmly on
the brake pedal, your vehicle could move
very rapidly. You could lose control and
hit people or objects. Do not shift into a
drive gear while your engine is running at
high speed.
Notice:Shifting out of PARK (P) or
NEUTRAL (N) with the engine running at high
speed may damage the transmission. The
repairs would not be covered by your warranty.
Be sure the engine is not running at high speed
when shifting your vehicle.
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DRIVE (D):This position is for normal driving.
It provide the best fuel economy for your vehicle.
If you need more power for passing, and you are:
Going less than about 35 mph (56 km/h), push
the accelerator pedal about halfway down.
Going about 35 mph (56 km/h) or more, push
the accelerator all the way down.
Downshifting the transmission in slippery road
conditions could result in skidding, see “Skidding”
underLoss of Control on page 291.
SPORT MODE (S):When in SPORT MODE (S),
the transmission will work as an automatic
until you use the Manual Paddle Shift Controls,
which activates the driver manual gear selection.
See Manual Paddle Shift later in this section.
While in automatic SPORT MODE (S), the
transmission computer determines when the
vehicle is being driven in a competitive manner
and will select and hold the transmission in lower
gears and have more noticeable upshifts for
sportier vehicle performance.
Manual Paddle Shift
While in the SPORT MODE (S) position, the
paddles located on the steering wheel, can be
used to manually up-shift or down-shift the
transmission.
While in the SPORT MODE (S) mode, push the
paddle above the steering wheel spokes to up-shift
to the next gear, or pull on the paddle behind
the steering wheel spokes to down-shift to the
next gear.
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To use the system, shift from PARK (P) position
to SPORT MODE (S) while stopped and with the
engine running, or from DRIVE (D) with the vehicle
moving. When accelerating your vehicle from a stop
in snowy and icy conditions, you may want to shift
to second (2) or third (3) gear. A higher gear allows
you to gain more traction on slippery surfaces. If the
traction control is active, upshifts are delayed to
increase your control of the vehicle. SeeTraction
Control System (TCS) on page 281.
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 second gear as the
vehicle stops. From a stop, the vehicle will start
from and hold second (2) gear unless the driver
manually paddle shifts into a different gear or
selects DRIVE (D). The driver can select rst (1)
gear for maximum acceleration from a stop.When using the Manual
Paddle Shift Feature
while in the SPORT
MODE (S), the current
gear will be displayed in
the Driver Information
(DIC), or the Head-Up
Display (HUD), if the
vehicle has either of
these features.
If your vehicle has a Navigation system, see
“Head-Up Display (HUD)” in the Index of
the navigation manual.
The Manual Paddle Shift system will not allow
either an up-shift or a down-shift if the vehicle
speed is too fast or too slow, nor will it allow a
start from Fourth (4) or higher gear
If up-shifting does not occur when needed, the
vehicle speed will be limited to protect the engine.
The transmission will also automatically
down-shift as the vehicle slows down and
comes to a stop.
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Shifting Into Park (P)
(Automatic Transmission)
{CAUTION:
It can be dangerous to get out of your
vehicle if the shift lever is not fully in
PARK (P) with the parking brake rmly
set. Your vehicle can roll. If you have left
the engine running, the vehicle can move
suddenly. You or others could be injured.
To be sure your vehicle will not move,
even when you are on fairly level ground,
use the steps that follow.
1. Hold the brake pedal down with your right foot
and set the parking brake.
SeeParking Brake on page 102for more
information.
2. Move the shift lever into PARK (P) by holding in
the button on the lever and pushing the lever all
the way toward the front of the vehicle.
3. Press the Acc. button (ignition switch) to turn
the engine off.
Leaving Your Vehicle With the Engine
Running (Automatic Transmission)
{CAUTION:
It can be dangerous to leave your vehicle
with the engine running. Your vehicle could
move suddenly if the shift lever is not fully
in PARK (P) with the parking brake rmly
set. And, if you leave the vehicle with the
engine running, it could overheat and even
catch re. You or others could be injured.
Do not leave your vehicle with the engine
running.
If you have to leave your vehicle with the engine
running, be sure your vehicle is in PARK (P) and
your parking brake is rmly set before you leave it.
After you have moved the shift lever into PARK (P),
hold down the regular brake pedal. See if you can
move the shift lever away from PARK (P) without
rst pulling it toward you. If you can, it means that
the shift lever was not fully locked into PARK (P).
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Torque Lock (Automatic Transmission)
If you are parking on a hill and you do not shift your
transmission into PARK (P) properly, the weight of
the vehicle may put too much force on the parking
pawl in the transmission. You may nd it difficult to
pull the shift lever out of PARK (P). This is called
“torque lock.” To prevent torque lock, set the
parking brake and then shift into PARK (P) properly
before you leave the driver’s seat. To nd out how,
see “Shifting Into PARK (P)” listed previously in this
section.
When you are ready to drive, move the shift lever
out of PARK (P) before you release the parking
brake.
If torque lock does occur, you may need to
have another vehicle push yours a little uphill to
take some of the pressure from the transmission
parking pawl, so you can pull the shift lever
out of PARK (P).
Shifting Out of Park (P)
(Automatic Transmission)
Your vehicle has an automatic transmission shift
lock control system which locks the shift lever
in PARK (P) when the ignition is off. In addition,
you have to fully apply your regular brake
before you can shift from PARK (P) when the
ignition is on. SeeAutomatic Transmission
Operation on page 95.
If you cannot shift out of PARK (P), ease pressure
on the shift lever and push the shift lever all the
way into PARK (P) and release the shift lever
button as you maintain brake application.
Then press the shift lever button and move
the shift lever into the gear you wish.
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Running the Engine While Parked
It is better not to park with the engine running.
But if you ever have to, here are some things
to know.
{CAUTION:
Idling the engine with the climate control
system off could allow dangerous exhaust
into your vehicle. See the earlier caution
underEngine Exhaust on page 106.
Also, idling in a closed-in place can let
deadly carbon monoxide (CO) into your
vehicle even if the climate control fan is
at the highest setting. One place this can
happen is a garage. Exhaust — with
CO — can come in easily. NEVER park
in a garage with the engine running.
Another closed-in place can be a blizzard.
SeeWinter Driving on page 304.
{CAUTION:
It can be dangerous to get out of your
vehicle if the shift lever is not fully in
PARK (P) with the parking brake rmly
set. Your vehicle can roll. Do not leave
your vehicle when the engine is running
unless you have to. If you have left the
engine running, the vehicle can move
suddenly. You or others could be injured.
To be sure your vehicle will not move,
even when you are on fairly level ground,
always set the parking brake and move
the shift lever to PARK (P).
Follow the proper steps to be sure your vehicle
will not move. SeeShifting Into Park (P)
(Automatic Transmission) on page 103.
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Roof Panel
The vehicle may have a removable roof panel.
Follow the procedures listed when removing
or installing it.
Removing the Roof Panel
{CAUTION:
Do not try to remove a roof panel while
the vehicle is moving. Trying to remove
the roof panel while the vehicle is moving
could cause an accident. The panel could
fall into the vehicle and cause you to lose
control, or it could y off and strike
another vehicle. You or others could be
injured. Remove the roof panel only when
the vehicle is parked.
Until you are sure you can remove the panel
alone, have someone help you.Notice:If you drop or rest a roof panel
on its edges, the roof panel, paint and/or
weatherstripping may be damaged. Always
place the roof panel in the stowage receivers
after removing it from the vehicle.
1. Park on a level surface and set the parking
brake. Shift an automatic transmission into
PARK (P). Shift a manual transmission
into NEUTRAL.
2. Make sure the ignition is off.
3. Lower both sun visors.
4. Open the rear hatch and remove any items
that may interfere with proper storage of the
roof panel.
5. Lower the windows.
There are two release latches on the front of
the roof panel and one rear release latch
on the back of the roof panel.
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Installing the Roof Panel
{CAUTION:
An improperly attached roof panel may
fall into or y off the vehicle. You or
others could be injured. After installing
the roof panel, always check that it is
rmly attached by pushing up on the
underside of the panel. Check now and
then to be sure the roof panel is rmly
in place.
Notice:If you drop or rest a roof panel
on its edges, the roof panel, paint and/or
weatherstripping may be damaged. Always
place the roof panel in the stowage receivers
after removing it from the vehicle.In most cases, it makes it easier if two people
re-install the roof panel.
1. Park on a level surface and set the parking
brake. Shift an automatic transmission into
PARK (P). Shift a manual transmission
into NEUTRAL.
2. Check that the front release latches and
the rear release latch on the vehicle’s roof
opening are in their opened positions before
attempting to install the roof panel.
3. If the roof panel is stored in the rear storage
area of the vehicle, grasp the rear edge of the
roof panel with both hands and gently lift it
up and remove it from the storage area.
4. Carefully place the roof panel over the top of
the vehicle.
5. Position the rear edge of the roof panel to the
weatherstrip on the back of the roof opening.
Then align and t the pins at the rear of the roof
panel inside the openings in the rear overhead
weatherstrip. Gently lower the front edge of the
roof panel to the front of the roof opening.
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