2008 CHEVROLET CORVETTE heating

TRACTION SYSTEM – ON
This message displays and a single, quick tone sounds
when the Traction Control System (TCS) is turned
on by pressing the Active Handling System button on
the console. This message automatically clears from the
DIC display on its own. SeeTraction Control System
(TCS) on page 4-6for more information.
TRANSMISSION HOT IDLE ENGINE
This message displays and four chimes sound if the
transmission uid temperature rises above 270°F
(132°C) or rises rapidly. 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. 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. SeeDIC Operation and Displays on page 3-52
andAutomatic Transmission Fluid on page 5-27.
Also check the engine coolant temperature. If it is also
hot, seeEngine Overheating on page 5-31.
If this message is displayed during normal vehicle
operation on at roads, your vehicle may need service.
See your dealer/retailer 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 2-26
for more information.
To acknowledge the message, press the RESET button.
The message reappears every 10 minutes until this
condition changes. If you do not press the RESET
button, the message remains on the display until the
condition changes.TURN SIGNAL ON
This message displays and a chime sounds if a turn
signal is left on for three-quarters of a mile (1.2 km).
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 displays and a chime sounds if you try to
lower the convertible top without rst unlocking the
top. Move the latch handle to unlock the convertible top.
SeeConvertible Top (Manual) on page 2-62or
Convertible Top (Power) on page 2-68.
3-73

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-4
California Perchlorate Materials Requirements.....5-4
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of the
Vehicle......................................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-6
California Fuel...............................................5-6
Additives.......................................................5-7
Fuels in Foreign Countries...............................5-8
Filling the Tank..............................................5-8
Filling a Portable Fuel Container.....................5-11
Checking Things Under the Hood....................5-12
Hood Release..............................................5-13
Engine Compartment Overview.......................5-14
Engine Oil...................................................5-17
Engine Oil Life System..................................5-23
Engine Air Cleaner/Filter................................5-25
Automatic Transmission Fluid.........................5-27
Manual Transmission Fluid.............................5-27
Hydraulic Clutch...........................................5-27
Engine Coolant.............................................5-28
Coolant Surge Tank Pressure Cap..................5-31Engine Overheating.......................................5-31
Overheated Engine Protection
Operating Mode........................................5-33
Cooling System............................................5-34
Power Steering Fluid.....................................5-39
Windshield Washer Fluid................................5-41
Brakes........................................................5-42
Battery........................................................5-45
Jump Starting...............................................5-46
Rear Axle.......................................................5-51
Headlamp Aiming...........................................5-51
Bulb Replacement..........................................5-52
High Intensity Discharge (HID) Lighting............5-52
Halogen Bulbs..............................................5-52
Headlamps, Front Turn Signal, and
Parking Lamps..........................................5-53
Taillamps, Turn Signal, and Stoplamps............5-54
Replacement Bulbs.......................................5-55
Windshield Replacement.................................5-55
Windshield Wiper Blade Replacement..............5-55
Tires..............................................................5-58
Winter Tires.................................................5-59
Tire Sidewall Labeling...................................5-60
Tire Terminology and Denitions.....................5-62
Run-Flat Tires..............................................5-64
Section 5 Service and Appearance Care
5-1

When to Check and What to Use
The hydraulic clutch uid
reservoir cap has this
symbol on it. SeeEngine
Compartment Overview
on page 5-14for reservoir
location.
Refer to the Maintenance Schedule for the proper uid
to use. SeeRecommended Fluids and Lubricants
on page 6-12. The uid requires changing every
two years. SeeAdditional Required Services on
page 6-6.
How to Check and Add Fluid
Visually check the clutch uid reservoir to make sure
the uid level is at the MIN (Minimum) line on the side of
the reservoir. The hydraulic clutch uid system should
be kept closed and sealed. Do not remove the cap
to check the uid level or to top-off the uid level.
Remove the cap only when necessary to add the
proper uid until the level reaches the MIN line.
Engine Coolant
The cooling system in your vehicle is lled with
DEX-COOL®engine coolant. This coolant is designed
to remain in your vehicle for ve years or 150,000 miles
(240 000 km), whichever occurs rst, if you add only
DEX-COOL
®extended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem
with engine overheating, seeEngine Overheating on
page 5-31.
A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Give freezing protection down to−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as they
should.
Notice:Using coolant other than DEX-COOL
®can
cause premature engine, heater core, or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at the rst maintenance
service after each 30,000 miles (50 000 km) or
24 months, whichever occurs rst. Any repairs would
not be covered by the vehicle warranty. Always use
DEX-COOL
®(silicate-free) coolant in the vehicle.
5-28

Adding Coolant
If you need more coolant, add the proper DEX-COOL®
coolant mixture at the surge tank, but only when the
engine is cool.
{CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and it will burn if the engine parts are hot
enough. Do not spill coolant on a hot engine.
When replacing the pressure cap, make sure it is
hand-tight and fully seated.
Coolant Surge Tank Pressure Cap
Notice:If the pressure cap is not tightly installed,
coolant loss and possible engine damage may
occur. Be sure the cap is properly and tightly
secured.
The coolant surge tank pressure cap must be fully
installed on the coolant surge tank. SeeEngine
Compartment Overview on page 5-14for more
information on location.
Engine Overheating
You will nd an engine coolant temperature gage on the
instrument panel cluster and a COOLANT OVER
TEMPERATURE message on the Driver Information
Center (DIC). SeeEngine Coolant Temperature
Gage on page 3-44andDIC Warnings and Messages
on page 3-57for more information.
5-31

{CAUTION:
Heater and radiator hoses, and other engine
parts, can be very hot. Do not touch them.
If you do, you can be burned.
Do not run the engine if there is a leak. If you
run the engine, it could lose all coolant. That
could cause an engine re, and you could be
burned. Get any leak xed before you drive
the vehicle.
If there seems to be no leak, with the engine on, check
to see if the electric engine cooling fan is running.
If the engine is overheating, the fan should be running.
If it is not, your vehicle needs service.Notice:Engine damage from running your engine
without coolant is not covered by your warranty.
SeeOverheated Engine Protection Operating Mode
on page 5-33for information on driving to a safe
place in an emergency.
Notice:Using coolant other than DEX-COOL®can
cause premature engine, heater core, or radiator
corrosion. In addition, the engine coolant could
require changing sooner, at 30,000 miles (50 000 km)
or 24 months, whichever occurs rst. Any repairs
would not be covered by the vehicle warranty.
Always use DEX-COOL
®(silicate-free) coolant in
the vehicle.
5-35

Tires
Your new vehicle comes with high-quality tires
made by a leading tire manufacturer. If you ever
have questions about your tire warranty and where
to obtain service, see your vehicle Warranty
booklet for details.
{CAUTION:
Poorly maintained and improperly
used tires are dangerous.
Overloading your tires can cause
overheating as a result of too much
exing. You could have an air-out and
a serious accident. SeeLoading the
Vehicle on page 4-24.
CAUTION: (Continued)
CAUTION: (Continued)

Underinated tires pose the same
danger as overloaded tires. The
resulting accident could cause serious
injury. Check all tires frequently to
maintain the recommended pressure.
Tire pressure should be checked when
your tires are cold. SeeInflation - Tire
Pressure on page 5-66.
Overinated tires are more likely to
be cut, punctured, or broken by a
sudden impact — such as when you
hit a pothole. Keep tires at the
recommended pressure.
Worn, old tires can cause accidents. If
your tread is badly worn, or if your tires
have been damaged, replace them.
SeeHigh-Speed Operation on page 5-68for
ination pressure adjustment for high
speed driving.
5-58

Fuses Usage
CRUISE
SWITCHCruise Control Switch
CTSY/LAMP Courtesy Lamp
DR LCK Door Locks
DRIV DR
SWITCHDriver Door Switch
ECM Engine Control Module (ECM)
EXH MDLExhaust Module (Z06), Spare
(Coupe and Convertible)
GM LAN
RUN/CRNKGM LAN Devices
HTD SEAT/
WPR RLYHeated Seat, Wiper Relays
HVAC/
PWR SNDHeating. Ventilation/Air Conditioning,
Power Sounder
IGN
SWTCH/INTR
SNSRIgnition Switch, Intrusion Sensor
ISRVM/HVACElectric Inside Rearview Mirror,
Heating, Ventilation, Air Conditioning
ONSTAR OnStar
®
Fuses Usage
RDO/S-BAND/
VICSRadio, S-Band, VICS
REAR FOG/
ALDL/TOP
SWTCHRear Fog Lamp, Assembly Line
Diagnostic Link Connector,
Convertible Top Switch
REVERSE
LAMPSReverse Lamps
RUN CRNK Run/Crank Relay
SDM/AOS
SWTCH
AIRBAGSensing and Diagnostic Module,
Automatic Occupant Sensing
Module, Airbag
SPARE Spare
SPARE Spare
SPARE Spare
SPARE Spare
STOP LAMP Stop Lamp
SWC DM Steering Wheel Dimming
TELE
SWTCH/MSMTelescope Switch, Memory Seat
Module
TONNEAU
RELSETonneau Release
TPA Tonneau Pulldown Actuator
5-102

Fuse Usage
1Transmission Control Module/
Transmission
2 Horn, Alternator Sense
3 Antilock Brakes/Real Time Damping
4 Wiper
5 Stoplamps/Back-Up Lamps
6 02 Sensor
7 Battery Main 5
8 Park Lamps
9Powertrain Relay Input/Electronic
Throttle Control
10 Manual Transmission Solenoids
11Engine Control Module/Transmission
Control Module/Easy Key Module
12 Odd Numbered Fuel Injectors
13Electronic Suspension Control
(Option)
14Canister Purge Solenoid, Mass Air
Flow Sensor
15 Air Conditioner Compressor
16 Even Numbered Fuel Injectors
17 Windshield WasherFuse Usage
18 Headlamp Washer
19Passenger Side Low-Beam
Headlamp
20 Fuel Pump
21 Driver Side Low-Beam Headlamp
22 Front Fog Lamp
23Passenger Side High-Beam
Headlamp
24 Driver Side High-Beam Headlamp
J-Style Fuses Usage
25 Cooling Fan
26 Battery Main 3
27 Antilock Brake System
28Heating/Ventilation/Air Conditioning
Blower
29 Battery Main 2
30 Starter
31 Audio Amplier
32 Blank
33 Battery Main 1
5-105