2008 CHEVROLET CORVETTE engine coolant

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-7
Horn .............................................................3-7
Tilt Wheel.....................................................3-7
Turn Signal/Multifunction Lever.........................3-8
Turn and Lane-Change Signals (Auto Signal).....3-9
Headlamp High/Low-Beam Changer..................3-9
Flash-to-Pass...............................................3-10
Windshield Wipers........................................3-10
Windshield Washer.......................................3-11
Cruise Control..............................................3-11
Exterior Lamps.............................................3-15
Wiper Activated Headlamps............................3-16
Headlamps on Reminder................................3-16
Daytime Running Lamps (DRL).......................3-16
Fog Lamps ..................................................3-17
Twilight Sentinel
®..........................................3-18
Exterior Lighting Battery Saver........................3-19
Instrument Panel Brightness...........................3-19
Courtesy Lamps...........................................3-19
Entry/Exit Lighting.........................................3-19
Reading Lamps............................................3-20Battery Run-Down Protection..........................3-20
Head-Up Display (HUD).................................3-20
Accessory Power Outlet(s).............................3-24
Ashtray(s) and Cigarette Lighter......................3-25
Climate Controls............................................3-26
Dual Automatic Climate Control System...........3-26
Outlet Adjustment.........................................3-32
Passenger Compartment Air Filter...................3-32
Warning Lights, Gages, and Indicators............3-34
Instrument Panel Cluster................................3-35
Speedometer and Odometer...........................3-36
Tachometer.................................................3-36
Safety Belt Reminders...................................3-36
Airbag Readiness Light..................................3-37
Passenger Airbag Status Indicator...................3-38
Voltmeter Gage............................................3-40
One-to-Four Shift Light
(Manual Transmission)...............................3-40
Brake System Warning Light..........................3-41
Antilock Brake System (ABS) Warning Light........3-42
Traction Control System (TCS) Warning Light......3-42
Active Handling System Light.........................3-43
Engine Coolant Temperature Gage..................3-44
Section 3 Instrument Panel
3-1

Manual Paddle Shift Gear Indicator (If Equipped)
These displays on the HUD are for use when
using the manual paddle shift controls to shift
the transmission. See “Manual Paddle Shift” in
Automatic Transmission Operation on page 2-26.
Shift Light
This light is used for performance driving to indicate
that the vehicle’s best performance level has
been reached to shift the transmission into the next
higher gear. An arrow pointing up will light up on
the display just prior to reaching the engine fuel
cut-off mode. This cut-off is about 6,500 RPM for
the LS3 engine and 7,000 RPM for the LS7 engine.
Check Gages Warning
Engine Coolant Temperature Gage
Transmission Fluid Temperature Gage,
(Automatic Transmission Vehicles Only)
Engine Oil Temperature Gage
Engine Oil Pressure Gage
G-Force Gage
Audio Functions, Street Mode Only
Navigation, Only with Navigation Radio,
Turn-by-Turn GuidanceThere are three HUD modes that you can choose to view
in the HUD display. By pressing the MODE button, you
can scroll through these modes in the following order:
Street Mode supports
audio and navigation
functions with your choice
of tachometer settings.
Track Mode 1 supports the
G-Force gage and minor
gages with a circular
tachometer.
Track Mode 2 supports
G-Force gages and minor
gages with a linear
tachometer.
3-21

When the desired HUD display has been selected,
release the MODE button.
Within each mode, the display, can be further
customized by pressing the PAGE button. Pressing this
button in each mode will turn off and on the following:
Street Mode — No tachometer, circular tachometer,
and linear tachometer.
Track Modes 1 and 2 — No minor gage, coolant
temperature, transmission oil temperature, engine
oil temperature, and engine oil pressure.
While in Track Mode 1 or 2, the maximum G value
achieved during the current ignition cycle can be
displayed by pressing and holding the PAGE button.
The maximum G display will be shown until the
PAGE button is released. The maximum G value
display will be identical to the normal G value
display, except the maximum G gage digits (X.XX G)
and corresponding G gage bar will overwrite the
current G value.Be sure to continue scanning the displays, controls and
driving environment just as you would in a vehicle
without HUD. If you never look at your instrument panel
cluster, you may miss something important, such as
a warning light. Under important warning conditions,
the CHECK GAGES warning will illuminate in the HUD.
View your Driver Information Center (DIC) for more
information.
3-22

Voltmeter Gage
The voltmeter shows the
voltage output of your
battery. When the engine
is running, it shows
the voltage output of the
charging system.
The reading will change as the rate of charge changes
(with engine speed, for example), but if the voltmeter
reads at 9 volts or below, your instrument panel
cluster and other systems may shut down. The Driver
Information Center (DIC) will read BATTERY VOLTAGE
LOW when your vehicle is at 10 volts or below.
Have it checked right away. Driving with the voltmeter
reading at 10 volts or below could drain your battery
and disable your vehicle.
One-to-Four Shift Light
(Manual Transmission)
When this light comes on,
you can only shift from
FIRST (1) to FOURTH (4)
instead of FIRST (1) to
SECOND (2).
You must complete the shift into FOURTH (4) to turn off
this feature. This helps you get the best possible fuel
economy.
After shifting to FOURTH (4), you may downshift to a
lower gear if you prefer.
Notice:Forcing the shift lever into any gear except
FOURTH (4) when the 1 TO 4 SHIFT light comes
on may damage the transmission. Shift only from
FIRST (1) to FOURTH (4) when the light comes on.
This light will come on when:
The engine coolant temperature is higher than
169°F (76°C),
the vehicle is going 15 to 19 mph (24 to 31 km/h) and
the vehicle 21 percent throttle or less.
3-40

Engine Coolant Temperature Gage
This gage shows the engine coolant temperature.
If the gage pointer moves into the shaded area,
your engine is too hot.
This means that your engine coolant has overheated.
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.
SeeEngine Overheating on page 5-31for more
information.
Tire Pressure Light
This light comes on briey
when the engine is started.
This light also comes on when one or more of the tires
are signicantly underinated.
A tire pressure message in the Driver Information
Center (DIC), can accompany the light. SeeDIC
Warnings and Messages on page 3-57for more
information.
Stop and check the tires as soon as it is safe to do so.
If underinated, inate to the proper pressure.
SeeTires on page 5-58for more information.
If a problem is detected with the Tire Pressure Monitor
System, this light ashes for approximately 60 seconds
and then stays on for the remainder of the ignition
cycle. SeeTire Pressure Monitor System on page 5-68
for more information. United States
Canada
3-44

DIC Operation and Displays
The Driver Information Center (DIC) has different modes
which can be accessed by pressing the following
buttons located on the instrument panel, to the right of
the instrument panel cluster.
.4(Fuel):Press this button to display fuel information
such as fuel economy and range.
2(Gages):Press this button to display gage
information like oil pressure and temperature, coolant
temperature, automatic transmission uid temperature, if
equipped, battery voltage, and front/rear tire pressures.
TRIP:Press this button to display your total and
trip distance driven, the elapsed time function, your
average speed, and the engine oil life.
OPTION:Press this button to choose personal options
that are available on your vehicle, depending on the
options your vehicle is equipped with, such as door
locks, easy entry seats, and language.
RESET:Press this button, used along with the other
buttons, to reset system functions, select personal
options, and turn off or acknowledge messages
on the DIC.
3-52

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°C
If 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.
3-54

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 safety 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 Reminders on page 3-36for more
information.
CHANGE ENGINE OIL
This message displays 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” underDIC Operation
and Displays on page 3-52. Also, seeEngine Oil on
page 5-17andEngine Oil Life System on page 5-23for
more information.
CHECK BRAKE FLUID
This message displays, a chime sounds, and the brake
system warning light on the instrument panel cluster
turns on if the ignition is on to inform the driver that the
brake uid level is low. SeeBrake System Warning
Light on page 3-41. Have the brake system serviced by
your dealer/retailer as soon as possible. SeeBrakes
on page 5-42.
CHECK COOLANT LEVEL
This message displays when the engine coolant level
is low. Have the cooling system serviced by your
dealer/retailer as soon as possible. SeeEngine Coolant
on page 5-28.
CHECK GAS CAP
This message displays if the fuel cap has not been fully
tightened. Check the fuel cap to make sure that it is
on properly. Once tightened, it takes at least one
overnight park to reset or clear this message. If both the
CHECK GAS CAP message and the malfunction
indicator lamp in the instrument panel cluster are on,
you may need to see your dealer/retailer for service.
SeeMalfunction Indicator Lamp on page 3-45for more
information.
CHECK OIL LEVEL
On some vehicles, this message displays and two
chimes sound if the oil level in the vehicle is low.
Once the vehicle senses a change in the engine oil
level, the light remains off.
If this message appears after starting the engine,
the engine oil level may be too low. You may need to
add oil. SeeEngine Overheating on page 5-31.
3-60