2006 CHEVROLET CORVETTE check engine light

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

Gasoline Octane
If your vehicle has the 6.0L V8 engine (VIN Code U), use
premium unleaded gasoline with a posted octane rating
of 91 or higher. You may also use regular unleaded
gasoline rated at 87 octane or higher, but your vehicle’s
acceleration may be slightly reduced, and you may notice
a slight audible knocking noise, commonly referred to as
spark knock. If the octane is less than 87, you may notice
a heavy knocking noise when you drive. If this occurs,
use a gasoline rated at 87 octane or higher as soon as
possible. Otherwise, you might damage your engine. If
you are using gasoline rated at 87 octane or higher and
you hear heavy knocking, your engine needs service.
If your vehicle has the 7.0L V8 engine (VIN Code E),
use premium unleaded gasoline with a posted octane
rating of 91 or higher. For best performance, use
premium unleaded gasoline with a posted octane rating
of 93. In an emergency, you can use regular unleaded
gasoline with an octane rating of 87 or higher. If
87 octane fuel is used, do not perform any aggressive
driving maneuvers such as wide open throttle
applications. You may also hear audible spark knock
during acceleration. Rell your tank with premium fuel as
soon as possible to avoid damaging your engine. If you
are using gasoline rated at 91 octane or higher and you
hear heavy knocking, your engine needs service.
Gasoline Specications
At a minimum, gasoline should meet ASTM
specication D 4814 in the United States or
CAN/CGSB-3.5 in Canada. Some gasolines may
contain an octane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl (MMT).
General Motors recommends against the use of
gasolines containing MMT. SeeAdditives on page 5-6
for additional information.
California Fuel
If your vehicle is certied to meet California Emissions
Standards, it is designed to operate on fuels that
meet California specications. See the underhood
emission control label. If this fuel is not available
in states adopting California emissions standards,
your vehicle will operate satisfactorily on fuels meeting
federal specications, but emission control system
performance may be affected. The malfunction indicator
lamp may turn on and your vehicle may fail a
smog-check test. SeeMalfunction Indicator Lamp
on page 3-42. If this occurs, return to your authorized
GM dealer for diagnosis. If it is determined that the
condition is caused by the type of fuel used, repairs may
not be covered by your warranty.
5-5

When to Check and What to Use
The hydraulic clutch uid
reservoir cap has this
symbol on it. SeeEngine
Compartment Overview
on page 5-12for reservoir
location.
Refer to the Maintenance Schedule to determine how
often you should check the uid level in your clutch
master cylinder reservoir and for the proper uid to use.
SeeOwner Checks and Services on page 6-8and
Recommended Fluids and Lubricants on page 6-12.
How to Check and Add Fluid
Make sure the uid level is at the MIN (Minimum) line on
the side of the reservoir. If it is not, remove the cap and
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 5-32.
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
®may
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 your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your vehicle.
5-29

Overheated Engine Protection
Operating Mode
If an overheated engine condition exists and the
messages COOLANT OVER TEMPERATURE and
REDUCED ENGINE POWER are displayed, along with
the Check Engine light, an overheat protection mode
which alternates ring groups of cylinders helps prevent
engine damage. In this mode, you will notice a loss
in power and engine performance. This operating mode
allows your vehicle to be driven to a safe place in an
emergency; you may drive up to 50 miles (80 km).
Notice:After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any repair.
The engine oil will be severely degraded. Repair the
cause of coolant loss, change the oil and reset the oil
life system. SeeEngine Oil on page 5-16.
Cooling System
When you decide it is safe to lift the hood, here is what
you will see:
A. Electric Engine Cooling Fan
B. Coolant Surge Tank with Pressure Cap
5-34

{CAUTION:
Using a match near a battery can cause battery
gas to explode. People have been hurt doing
this, and some have been blinded. Use a
ashlight if you need more light.
Be sure the battery has enough water. You do
not need to add water to the battery installed
in your new vehicle. But if a battery has ller
caps, be sure the right amount of uid is there.
If it is low, add water to take care of that rst.
If you do not, explosive gas could be present.
Battery uid contains acid that can burn you.
Do not get it on you. If you accidentally get it
in your eyes or on your skin, ush the place
with water and get medical help immediately.
{CAUTION:
Fans or other moving engine parts can injure
you badly. Keep your hands away from moving
parts once the engine is running.
5. Check that the jumper cables do not have loose or
missing insulation. If they do, you could get a shock.
The vehicles could be damaged too.
Before you connect the cables, here are some
basic things you should know. Positive (+) will go to
positive (+) or to a remote positive (+) terminal if
the vehicle has one. Negative (−) will go to a heavy,
unpainted metal engine part or to a remote
negative (−) terminal if the vehicle has one.
Do not connect positive (+) to negative (−)oryou
will get a short that would damage the battery
and maybe other parts too. And do not connect the
negative (−) cable to the negative (−) terminal on
the dead battery because this can cause sparks.
5-48

Tire Pressure Monitor System
The Tire Pressure Monitor System (TPMS) on your
vehicle, uses radio and sensor technology to check tire
pressure levels. Sensors, mounted on each tire and
wheel assembly, transmit tire pressure readings to a
receiver located in the vehicle. The TPMS sensors
transmit tire pressure readings once every 60 seconds
while the vehicle is being driven and once every
60 minutes when the vehicle is stationary for more than
15 minutes. Using the Driver Information Center (DIC),
tire pressure levels can be viewed by the driver. The
TPMS also uses the DIC to warn the driver when air
pressure, in one or more of the tires, falls below 24 psi
(164 kPa) or is above 42 psi (290 kPa). For additional
information and details about the DIC operation and
displays seeDIC Controls and Displays on page 3-48
andDIC Warnings and Messages on page 3-53.
A low tire pressure warning light also appears on the
instrument panel cluster when a low tire condition exists.
The low tire pressure warning light will be shown each
time the engine is started and stays on until the low tire
condition is corrected.
Each tire, including the spare (if provided), should be
checked monthly when cold and inated to the ination
pressure recommended by the vehicle manufacturer
on the vehicle placard or tire ination pressure label.(If your vehicle has tires of a different size than the size
indicated on the vehicle placard or tire ination pressure
label, you should determine the proper ination pressure
for those tires.)
As an added safety
feature, your vehicle has
been equipped with a
tire pressure monitoring
system (TPMS) that
illuminates a low tire
pressure telltale when one
or more of your tires is
signicantly under-inated.
Accordingly, when the low tire pressure telltale
illuminates, you should stop and check your tires as
soon as possible, and inate them to the proper
pressure. Driving on a signicantly under-inated tire
causes the tire to overheat and can lead to tire failure.
Under-ination also reduces fuel efficiency and tire
tread life, and may affect the vehicle’s handling
and stopping ability.
Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-ination
has not reached the level to trigger illumination of
the TPMS low tire pressure telltale.
5-67

Check
Engine Light...............................................3-42
Checking Things Under the Hood......................5-10
Chemical Paint Spotting...................................5-90
Child Restraints
Child Restraint Systems...............................1-27
Infants and Young Children...........................1-25
Lower Anchors and Tethers for
Children..........................................1-31, 1-35
Older Children.............................................1-22
Securing a Child Restraint in the
Passenger Seat Position...........................1-35
Chime Level Adjustment.................................3-101
Cigarette Lighter.............................................3-25
Cleaning
Aluminum Wheels........................................5-89
Cargo Cover and Convenience Net................5-85
Coated Moldings.........................................5-84
Convertible Top...........................................5-88
Exterior Lamps/Lenses.................................5-86
Fabric/Carpet..............................................5-83
Fiberglass Springs.......................................5-90
Finish Care.................................................5-86
Inside of Your Vehicle..................................5-82
Instrument Panel, Vinyl, and Other
Plastic Surfaces.......................................5-85
Leather......................................................5-84
Removable Roof Panel.................................5-88
Tires..........................................................5-89Cleaning (cont.)
Underbody Maintenance...............................5-90
Washing Your Vehicle...................................5-86
Weatherstrips..............................................5-85
Windshield and Wiper Blades........................5-87
Climate Control System
Air Filter, Passenger Compartment.................3-31
Dual Automatic............................................3-25
Outlet Adjustment........................................3-30
Clutch, Hydraulic.............................................5-28
Collision Damage Repair..................................7-10
Compass...............................................2-38, 2-41
Competitive Driving, Racing or Other.................4-18
Control of a Vehicle.......................................... 4-6
Convenience Net............................................2-54
Convertible Top......................................2-60, 2-67
Coolant
Engine Temperature Gage............................3-41
Heater, Engine............................................2-24
Surge Tank Pressure Cap.............................5-32
Cooling System..............................................5-34
Courtesy Lamps.............................................3-19
Cruise Control................................................3-11
Cupholder(s)..................................................2-51
Customer Assistance Information
Courtesy Transportation.................................. 7-7
Customer Assistance for Text
Telephone (TTY) Users............................... 7-4
3

Engine
Air Cleaner/Filter.........................................5-25
Battery.......................................................5-45
Check and Service Engine Soon Light............3-42
Coolant......................................................5-29
Coolant Heater............................................2-24
Coolant Temperature Gage...........................3-41
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-12
Exhaust.....................................................2-36
Oil .............................................................5-16
Oil Life System...........................................5-23
Oil Pressure Gage.......................................3-45
Overheated Protection Operating Mode...........5-34
Overheating................................................5-32
Starting......................................................2-23
Entry/Exit Lighting...........................................3-19
Event Data Recorders (EDR)............................. 7-9
Extended Mobility Tires....................................5-62
Extender, Safety Belt.......................................1-21
Exterior Lamps...............................................3-15
Exterior Lighting Battery Saver..........................3-19F
Filter
Engine Air Cleaner......................................5-25
Finish Damage...............................................5-90
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-81
Floor Mats.....................................................2-51
Fluid
Automatic Transmission................................5-28
Manual Transmission....................................5-28
Power Steering...........................................5-40
Windshield Washer......................................5-41
Fog Lamp Light..............................................3-46
Fog Lamps ....................................................3-17
Front Air Dam................................................2-21
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-6
Gage .........................................................3-47
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
5