engine coolant CHEVROLET CORVETTE 2006 6.G User Guide

The fuel economy data used to determine fuel range
is an average of recent driving conditions. As your
driving conditions change, this data is gradually updated
automatically.
If the vehicle has been idling for a long time, the range
displayed on the DIC could be abnormally low. The
vehicle must be driven 5–10 miles (8–16 km) to get an
accurate reading.
GAGES Button
The gages button displays oil pressure, oil temperature,
coolant temperature, transmission uid temperature
for automatic transmission vehicles only, battery voltage,
and tire pressure information.
Oil Pressure:This display shows the oil pressure.
Press the gages button to display the oil pressure,
such as:
OIL PRESSURE 40 PSI or
OIL PRESSURE 276 kPa
Oil Temperature:This display shows the oil
temperature.
Press the gages button again to display the oil
temperature, such as:
OIL TEMPERATURE 234°F or
OIL TEMPERATURE 112°CIf the oil temperature is low, the display will show OIL
TEMPERATURE LOW. If the oil temperature is high,
the display will show OIL TEMPERATURE HIGH.
Coolant Temperature:This display shows the engine
coolant temperature.
Press the gages button again to display the coolant
temperature, such as:
COOLANT TEMPERATURE 123°F or
COOLANT TEMPERATURE 51°C
If the coolant temperature is low, the display will show
COOLANT TEMPERATURE LOW. If the coolant
temperature is high, the display will show COOLANT
TEMPERATURE HIGH.
Transmission Fluid Temperature:If you have an
automatic transmission vehicle, this display shows the
automatic transmission uid temperature.
Press the gages button again to display the automatic
transmission uid temperature, such as:
TRANS FLUID TEMP 123°F or
TRANS FLUID TEMP 51°C
If the transmission uid temperature is low, the
display will show TRANS FLUID TEMP LOW. If the
transmission uid temperature is high, the display will
show TRANS FLUID TEMP HIGH.
3-50

BUCKLE SEATBELT:This message reminds you to
buckle the driver’s seat belt.
This message will display and a chime will sound when
the ignition is on, the driver’s seat belt is unbuckled,
and the vehicle is in motion. You should buckle
your seat belt.
If the driver remains unbuckled when the ignition is
on and the vehicle is in motion, the reminder will
be repeated. If the driver’s seat belt is already buckled,
this message and chime will not come on.
This message is an additional reminder to the Safety
Belt Reminder Light in the instrument panel cluster.
SeeSafety Belt Reminder Light on page 3-34for more
information.
CHANGE ENGINE OIL:This message will appear when
the life of the engine oil has expired. SeeScheduled
Maintenance on page 6-4. After an oil change, the engine
oil life system must be reset. See “Engine Oil Life” under
DIC Controls and Displays on page 3-48. Also, see
Engine Oil on page 5-16andEngine Oil Life System on
page 5-23for more information.
CHECK BRAKE FLUID:This message will appear, a
chime will sound, and the brake system warning light on
the instrument panel cluster will be on if the ignition is
on to inform the driver that the brake uid level is
low. SeeBrake System Warning Light on page 3-38.
Have the brake system serviced by your GM dealer as
soon as possible. SeeBrakes on page 5-42.CHECK COOLANT LEVEL:This message will appear
when there is a low level of engine coolant. Have
the cooling system serviced by your GM dealer as soon
as possible. SeeEngine Coolant on page 5-29.
CHECK GAS CAP:If the gas cap has not been fully
tightened, this message will appear. You should
check your gas cap to ensure that it is on properly.
Once tightened, it will take at least one overnight park
to reset or clear this message. If there is a CHECK GAS
CAP message and a malfunction indicator lamp on in
the instrument panel cluster, you may need to see your
GM dealer for service. SeeMalfunction Indicator
Lamp on page 3-42for more information.
CHECK OIL LEVEL:Press the RESET button to
acknowledge that you have read the message and to
remove it from the display. The message will reappear
every 10 minutes until this condition changes. Once
the vehicle senses a change in the engine oil level, the
light will remain off.
You will hear two chimes when this message is
displayed. If this message appears after starting your
engine, your engine oil level may be too low. You
may need to add oil. SeeEngine Overheating on
page 5-32.
3-55

CLOSE TRUNK TO MOVE TOP:This message will
display and a chime will sound if the trunk is open while
you are trying to operate the convertible top. Make
sure the trunk is closed before operating the convertible
top. SeeConvertible Top (Manual) on page 2-60or
Convertible Top (Power) on page 2-67.
COMPETITIVE DRIVING MODE:When the Competitive
Driving mode is selected, this message will be
displayed in the DIC and a short chime will sound.
The instrument panel cluster light will not be on when
the Competitive Driving mode is selected. The Traction
Control System will not be operating while in the
Competitive Driving mode. You should adjust your
driving accordingly. SeeRacing or Other Competitive
Driving on page 4-18for more information.
COOLANT OVER TEMPERATURE:You will hear a
chime when this message is displayed. To acknowledge
the warning, press the RESET button. After you press
the RESET button, a message will be displayed and
you will hear a chime every minute until this condition
changes. If you do not press the RESET button,
the message will remain on the digital display until the
condition changes.If the engine coolant exceeds 255°F (124°C), this
message is displayed. If you have been operating your
vehicle under normal driving conditions, you should
pull off the road, stop your vehicle and turn off the
engine as soon as possible. You can monitor the coolant
temperature with the GAGES button on the DIC or
the engine coolant gage on the instrument panel cluster.
SeeEngine Overheating on page 5-32.
CRUISE DISENGAGED:This message will momentarily
appear when you disengage the cruise control system
by stepping on the brake on an automatic transmission
vehicle or the clutch on a manual transmission vehicle
or by turning off the cruise control switch. SeeCruise
Control on page 3-11for more information.
ENGINE DRAG CONTROL ACTIVE:This message
displays when engine drag control is active. When
driving in a lower gear in rainy, snowy or icy conditions,
and then letting up on the accelerator or downshifting,
the rear wheels may begin to slip and this message
appears. This message will stay on for a few seconds
following the engine drag control event.
ENGINE OVERHEATED – STOP ENGINE:This
message will appear along with a continuous chime when
the engine has overheated. Stop and turn the engine off
immediately to avoid severe engine damage. SeeEngine
Overheating on page 5-32.
3-56

ENGINE PROTECTION REDUCE ENGINE RPM:
You will hear multiple chimes when this message is
displayed. This message will remain displayed and
active until the issue is resolved.
If the engine oil temperature exceeds 320°F (160°C),
this message is displayed. You should check the engine
coolant temperature and engine oil level. If your engine is
too hot, seeEngine Overheating on page 5-32. Your
vehicle may need service, so see your GM dealer. You
can monitor the oil temperature with the gages button
on the DIC.
HEADLAMPS SUGGESTED:If it is dark enough outside
and the headlamps and Twilight Sentinel
®controls are
off, this message will display. This message informs the
driver that turning on the exterior lamps is recommended.
It has become dark enough outside to require the
headlamps and/or other exterior lamps.
HIGH TIRE PRESSURE:To acknowledge the warning,
press the RESET button. After you press the RESET
button, a message will reappear every 10 minutes
until this condition changes. This message indicates
that the pressure in one of your tires is higher than
42 psi (290 kPa). Next to the HIGH TIRE PRESSURE
message, you can see either LEFT FRONT, RIGHT
FRONT, LEFT REAR, or RIGHT REAR to indicate to
you which tire is higher than 42 psi (290 kPa).You can receive more than one tire pressure message
at a time. To read other messages that may have
been sent at the same time, press the RESET button.
If a tire pressure message appears on the DIC, stop
as soon as you can. Have the tire pressures checked
and set to those shown on your Tire Loading Information
Label. SeeExtended Mobility Tires on page 5-62and
Ination - Tire Pressure on page 5-64.
HOT ENGINE AIR CONDITIONING OFF:This message
displays when the engine coolant becomes hotter than
the normal operating temperature. To avoid added strain
on a hot engine, the air conditioning compressor is
automatically turned off. When the coolant temperature
returns to normal, the A/C operation will automatically
resume. You can continue to drive your vehicle. If this
message continues to appear, have the system repaired
by your GM dealer as soon as possible to avoid
compressor damage.
ICE POSSIBLE:This message displays when the
outside air temperature is cold enough to create icy road
conditions.
LOW FUEL:This message displays when the fuel tank
is less than 10 percent full and the display is turned
off. A multiple chime will also sound when this message
is displayed. SeeFuel Gage on page 3-47.
3-57

NO FOB - OFF OR RUN?:When this message
displays, it means that the keyless access transmitter
is not detected inside the vehicle while you are trying
to turn the ignition off. Your vehicle may be near a strong
radio antenna signal causing the keyless access
system to be jammed. The vehicle will remain in
ACCESSORY until OFF or START has been pressed
or ve minutes has expired. If you turn the ignition
off and you cannot nd the keyless access transmitter,
you will not be able to restart the vehicle. The keyless
access transmitter needs to be inside of the vehicle
in order for the vehicle to start. SeeStarting the Engine
on page 2-23for more information.
OPTIONS UNAVAILABLE:This message is displayed
for a few seconds if a keyless access transmitter
that is not labelled 1 or 2 is used and you try to
personalize the features on your vehicle by pressing
the OPTION button. The personalization system will
not recognize the transmitter and the DIC will not display
the current driver number or the menus used to set
personalizations. The personalization features will
then be set to the default states. SeeDIC Vehicle
Personalization on page 3-68for more information.
PRESS BRAKE TO START ENGINE (Automatic
Transmission Only):This message is displayed if you
try to start the engine by pressing the keyless ignition
start button without having the brake pressed. The brake
needs to be pressed when starting the engine. See
Ignition Positions on page 2-22for more information.REDUCED ENGINE POWER:You will hear multiple
chimes when this message is displayed. To acknowledge
that you have read the message and to remove it from
the display, press the RESET button. The message will
reappear every ve minutes until this condition changes.
If the Driver Information Center (DIC) displays the
REDUCED ENGINE POWER message and the CHECK
ENGINE light comes on, a noticeable reduction in the
vehicle’s performance may occur. If the REDUCED
ENGINE POWER message is displayed but there is no
reduction in performance, proceed to your destination.
The performance may be reduced the next time the
vehicle is driven.
The vehicle may be driven at a reduced speed while
the REDUCED ENGINE POWER message is displayed,
but acceleration and speed may be reduced. Anytime the
CHECK ENGINE light stays on, the vehicle should be
taken to your GM dealer as soon as possible for
diagnosis and repair.
Also, seeMalfunction Indicator Lamp on page 3-42.Ifthe
REDUCED ENGINE POWER message is displayed in
combination with the COOLANT OVER TEMPERATURE
message, seeEngine Overheating on page 5-32.
3-60

TRANSMISSION HOT IDLE ENGINE:You will hear
four chimes when this message is displayed. To
acknowledge this warning, press the RESET button.
After you press the RESET button, the message will be
displayed every 10 minutes until the condition changes.
If you do not press the RESET button, the message
remains on the display until the condition changes.
If the transmission uid temperature rises above
270°F (132°C) or rises rapidly, this message is displayed.
The transmission may shift gears or apply the torque
converter clutch to reduce the uid temperature. Driving
aggressively or driving on long hills can cause the
transmission uid temperature to be higher than normal.
If this message appears, you may continue to drive
at a slower speed. You should also monitor the
transmission uid temperature and allow it to cool to at
least 230°F (110°C). The transmission uid temperature
can be monitored with the gages button on the DIC.
SeeAutomatic Transmission Fluid on page 5-28. You
should also check the engine coolant temperature. If it is
also hot, seeEngine Overheating on page 5-32.If the TRANSMISSION HOT IDLE ENGINE message is
displayed during normal vehicle operation on at roads,
your vehicle may need service. See your GM dealer for
an inspection.
If driving in a performance or competitive manner, the use
of (S) Sport Automatic Mode or (S) Sport Manual Paddle
Shift gear selection is recommended. SeeAutomatic
Transmission Operation on page 2-26for more
information.
TURN SIGNAL ON:If a turn signal is left on for
three-quarters of a mile (1.2 km), this message will
appear on the display and you will hear a chime. Move
the turn signal/multifunction lever to the off position.
To acknowledge this message, press the RESET button.
UNLATCH HEADER TO MOVE TOP:This message
will display and a chime will sound if you try to lower
the convertible top without rst unlocking the top. Move
the latch handle to unlock the convertible top. See
Convertible Top (Manual) on page 2-60orConvertible
Top (Power) on page 2-67.
3-66

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside
of Your Vehicle...........................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-5
Gasoline Specications....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-6
Filling the Tank..............................................5-7
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-16
Engine Oil Life System..................................5-23
Engine Air Cleaner/Filter................................5-25
Automatic Transmission Fluid.........................5-28
Manual Transmission Fluid.............................5-28
Hydraulic Clutch...........................................5-28
Engine Coolant.............................................5-29
Coolant Surge Tank Pressure Cap..................5-32
Engine Overheating.......................................5-32Overheated Engine Protection
Operating Mode........................................5-34
Cooling System............................................5-34
Power Steering Fluid.....................................5-40
Windshield Washer Fluid................................5-41
Brakes........................................................5-42
Battery........................................................5-45
Jump Starting...............................................5-46
Rear Axle.......................................................5-51
Bulb Replacement..........................................5-52
High Intensity Discharge (HID) Lighting............5-52
Halogen Bulbs..............................................5-52
Headlamps, Front Turn Signal,
and Parking Lamps....................................5-52
Taillamps, Turn Signal, and Stoplamps............5-54
Replacement Bulbs.......................................5-54
Windshield Replacement.................................5-54
Windshield Wiper Blade Replacement..............5-55
Tires..............................................................5-57
Tire Sidewall Labeling...................................5-58
Tire Terminology and Denitions.....................5-60
Extended Mobility Tires..................................5-62
Ination - Tire Pressure.................................5-64
Tire Pressure Monitor System.........................5-67
Tire Rotation................................................5-69
Section 5 Service and Appearance Care
5-1

Filling a Portable Fuel Container
{CAUTION:
Never ll a portable fuel container while it is in
your vehicle. Static electricity discharge from
the container can ignite the gasoline vapor.
You can be badly burned and your vehicle
damaged if this occurs. To help avoid injury to
you and others:
Dispense gasoline only into approved
containers.
Do not ll a container while it is inside a
vehicle, in a vehicle’s trunk, pickup bed, or
on any surface other than the ground.
Bring the ll nozzle in contact with the
inside of the ll opening before operating
the nozzle. Contact should be maintained
until the lling is complete.
Do not smoke while pumping gasoline.
Checking Things Under
the Hood
{CAUTION:
An electric fan under the hood can start up
and injure you even when the engine is not
running. Keep hands, clothing, and tools away
from any underhood electric fan.
{CAUTION:
Things that burn can get on hot engine parts
and start a re. These include liquids like fuel,
oil, coolant, brake uid, windshield washer and
other uids, and plastic or rubber. You or
others could be burned. Be careful not to drop
or spill things that will burn onto a hot engine.
5-10

A. Clutch Master Cylinder Reservoir (If Equipped).
SeeHydraulic Clutch on page 5-28.
B. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-41.
C. Brake Fluid Reservoir. See “Brake Fluid” under
Brakes on page 5-42.
D. Coolant Surge Tank and Pressure Cap. SeeEngine
Coolant on page 5-29.
E. Engine Air Cleaner/Filters. SeeEngine Air
Cleaner/Filter on page 5-25.F. Power Steering Fluid Reservoir. SeePower Steering
Fluid on page 5-40.
G. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-16.
H. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-16.
I. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 5-98.
J. Passenger Compartment Air Filter (Out of View).
SeePassenger Compartment Air Filter on page 3-31.
K. Battery. SeeBattery on page 5-45.
5-13

A. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-25.
B. Power Steering Fluid Reservoir. SeePower Steering
Fluid on page 5-40.
C. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 5-98.
D. Remote Positive Terminal (Out of View). SeeBattery
on page 5-45.
E. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-16.
F. Dry Sump Engine Oil Tank. See “Changing Engine
Oil and Filter (Z06 Only)”Engine Oil on page 5-16.G. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-16.
H. Coolant Surge Tank and Pressure Cap. SeeEngine
Coolant on page 5-29.
I. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-41.
J. Brake Fluid Reservoir. See “Brake Fluid” under
Brakes on page 5-42.
K. Clutch Master Cylinder Reservoir. SeeHydraulic
Clutch on page 5-28.
5-15