2004 CHEVROLET CORVETTE engine coolant

Keys...............................................................2-3
Remote Keyless Entry System.........................2-5
Remote Keyless Entry System Operation...........2-6
Doors and Locks.............................................2-9
Door Locks....................................................2-9
Power Door Locks........................................2-10
Lockout Protection........................................2-10
Leaving Your Vehicle....................................2-10
Hatch/Trunk.................................................2-11
Windows........................................................2-14
Power Windows............................................2-15
Sun Visors...................................................2-15
Theft-Deterrent Systems..................................2-16
Theft-Deterrent System..................................2-16
PASS-Key
®..................................................2-18
Starting and Operating Your Vehicle................2-19
New Vehicle Break-In....................................2-19
Front Air Dam..............................................2-19
Ignition Positions..........................................2-20
Starting Your Engine.....................................2-21
Engine Coolant Heater..................................2-23
Automatic Transmission Operation...................2-25
Manual Transmission Operation......................2-28Parking Brake..............................................2-31
Shifting Into Park (P).....................................2-32
Shifting Out of Park (P).................................2-34
Parking Your Vehicle (Manual Transmission).....2-35
Parking Over Things That Burn.......................2-35
Engine Exhaust............................................2-36
Running Your Engine While You Are
Parked (Automatic Transmission).................2-36
Mirrors...........................................................2-37
Manual Rearview Mirror.................................2-37
Automatic Dimming Rearview Mirror................2-38
Outside Power Heated Mirrors........................2-38
Outside Automatic Dimming Mirror..................2-39
Outside Convex Mirror...................................2-39
Storage Areas................................................2-40
Glove Box...................................................2-40
Cupholder(s)................................................2-40
Center Console Storage Area.........................2-40
Floor Mats...................................................2-41
Rear Storage Area........................................2-42
Convenience Net..........................................2-43
Cargo Cover................................................2-43
Section 2 Features and Controls
2-1

Starter Interlock Feature
For your convenience and to avoid damage to your
starter, your vehicle is equipped with a starter interlock
feature. This feature will not allow you to crank the
engine while the vehicle is already running.
Racing or Other Competitive Driving
See your warranty book before using your vehicle
for racing or other competitive driving.
Notice:If you use your 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. Be sure to check the oil level
often during racing or other competitive driving and
keep the level at or near 1 quart (1 L) above the
upper mark that shows the proper operating range
on the engine oil dipstick. For information on
how to add oil, seeEngine Oil on page 5-13. 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.
Engine Coolant Heater
The engine coolant heater is located on the driver’s side
of the engine under the manifold.
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.
2-23

To Use The Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The electrical cord is attached to the generator
bracket assembly, between the generator and the
windshield washer fluid tank. With the headlamps
closed, route the cord in the opening between
the headlamp door and the fender panel on
the driver’s side of the vehicle. Do not pinch the
cord when closing the hood.
3. Plug it into a normal, grounded 110-volt AC outlet.
{CAUTION:
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the
wrong kind of extension cord could overheat
and cause a re. You could be seriously
injured. Plug the cord into a properly grounded
three-prong 110-volt AC outlet. If the cord will
not reach, use a heavy-duty three-prong
extension cord rated for at least 15 amps.4. Before starting the engine, be sure to unplug and
store the cord as it was before to keep it away
from moving engine parts. If you do not it could be
damaged.
How long should you keep the coolant heater plugged
in? The answer depends on the outside temperature, the
kind of oil you have, and some other things. Instead
of trying to list everything here, we ask that you contact
your dealer in the area where you will be parking
your vehicle. The dealer can give you the best advice
for that particular area.
2-24

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),
•you are going 15 to 19 mph (24 to 31 km/h) and
•you are 21 percent throttle or less.
Downshifting (Manual Transmission)
If your vehicle is a coupe or convertible, do not downshift
into the gear shown below at a speed greater than
shown in the table:
FIRST (1) 50 mph (80 km/h)
SECOND (2) 74 mph (119 km/h)
THIRD (3) 101 mph (163 km/h)
FOURTH (4) 130 mph (209 km/h)
If your vehicle is a Z06, do not downshift into a gear
shown below at a speed greater than shown in the table:
FIRST (1) 48 mph (77 km/h)
SECOND (2) 69 mph (111 km/h)
THIRD (3) 100 mph (161 km/h)
FOURTH (4) 143 mph (230 km/h)
2-30

Instrument Panel Overview...............................3-2
Hazard Warning Flashers................................3-4
Other Warning Devices...................................3-5
Horn.............................................................3-5
Tilt Wheel.....................................................3-5
Turn Signal/Multifunction Lever.........................3-6
Exterior Lamps.............................................3-13
Interior Lamps..............................................3-17
Head-Up Display (HUD).................................3-18
Accessory Power Outlets...............................3-22
Ashtrays and Cigarette Lighter........................3-23
Climate Controls............................................3-23
Dual Automatic Climate
Control System.........................................3-23
Outlet Adjustment.........................................3-31
Warning Lights, Gages, and Indicators............3-32
Instrument Panel Cluster................................3-33
Speedometer and Odometer...........................3-34
Tachometer.................................................3-34
Safety Belt Reminder Light.............................3-34
Air Bag Readiness Light................................3-35
Air Bag Off Light..........................................3-36
Voltmeter Gage............................................3-37
Brake System Warning Light..........................3-38
Anti-Lock Brake System Warning Light.............3-39
Traction Control System (TCS) Warning Light . . .3-39Active Handling System Light.........................3-40
Engine Coolant Temperature Gage..................3-41
Malfunction Indicator Lamp.............................3-41
Engine Oil Pressure Gage.............................3-44
Security Light...............................................3-45
Check Gages Warning Light...........................3-46
Fuel Gage...................................................3-46
Driver Information Center (DIC).......................3-48
DIC Controls and Displays.............................3-49
DIC Warnings and Messages.........................3-58
Other Messages...........................................3-68
Audio System(s).............................................3-69
Setting the Time...........................................3-69
Radio with Cassette......................................3-70
Radio with CD..............................................3-76
Trunk-Mounted CD Changer...........................3-81
Theft-Deterrent Feature..................................3-86
Radio Reception...........................................3-88
Care of Your Cassette Tape Player.................3-88
Care of Your CDs.........................................3-89
Care of Your CD Player................................3-89
Fixed Mast Antenna (Z06)..............................3-89
Power Antenna Mast Care (Convertible)...........3-90
Integrated Windshield and Rear Window
Antennas (Coupe).....................................3-90
Section 3 Instrument Panel
3-1

The information may be displayed in English or metric
units and appears as an image focused out toward
the front of your vehicle. The HUD consists of the
following information:
•Speedometer
•Turn Signal Indicators
•High-Beam Indicator Symbol
•Tachometer
•Oil, Temperature and Fuel Gages
•Shift Light (Performance 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. The SHIFT light will display at an engine speed
of about 5,750 rpm (6,250 rpm on Z06), just prior to
reaching the engine fuel cut-off mode.
•Check Gages IconThere are five HUD selections that you can choose to
view in the HUD display. By pressing and holding
the PAGE button, you can scroll through these pages in
the following order:
•Speed Only
•Speed and Gage
•Speed, Tachometer and Gage
•Speed and Tachometer
•Tachometer Only
When you have chosen the desired HUD display,
release the PAGE button.
Gages can be scrolled through by tapping the PAGE
button (only when a gage is displayed). The gages
shown are the following:
•Oil Pressure
•Coolant Temperature
•Fuel Level
The selections that you choose will remain in the HUD
display until they are changed.
3-19

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.
(The larger tic marks are in increments of 30° below
220°F (104°C) and in increments of 10° above
220°F (104°C).)
SeeEngine Overheating on page 5-26for more
information.
Malfunction Indicator Lamp
Check Engine Light
Your vehicle is equipped
with a computer which
monitors operation of the
fuel, ignition and emission
control systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for the
life of the vehicle, helping to produce a cleaner
environment. The CHECK ENGINE light comes on to
indicate that there is a problem and service is required.
Malfunctions often will be indicated by the system
before any problem is apparent. This may prevent more
serious damage to your vehicle. This system is also
designed to assist your service technician in correctly
diagnosing any malfunction.
Notice:If you keep driving your vehicle with this
light on, after a while, your emission controls
may not work as well, your fuel economy may not
be as good and your engine may not run as
smoothly. This could lead to costly repairs that may
not be covered by your warranty. United States
Canada
3-41

Check Gages Warning Light
This light will come on
briefly when you are
starting the engine. If the
light comes on and
stays on while you are
driving, check your gages
to see if they are in the
warning areas.
This light can come on for the following reasons:
•Low Oil Pressure
•High Coolant Temperature
•High or Low Battery Voltage
•Low Fuel Level
Fuel Gage
Your fuel gage tells you
about how much fuel you
have left when the
ignition is on.
When the needle approaches the red zone, RESERVE
FUEL will appear on the Driver Information Center (DIC)
display. When the needle approaches the E, LOW
FUEL will appear on the display. At this time, you still
have a little fuel left, but you should get more soon.
Press RESET to acknowledge a DIC message(s).
Pressing RESET will also turn off a DIC message but
the LOW FUEL message will come on again in
10 minutes if you have not added fuel to the vehicle.
3-46