check engine CHEVROLET CORVETTE 2009 6.G Workshop Manual

Maintenance Schedule
Introduction
Important: Keep engine oil at the proper level and
change as recommended.
Have you purchased the GM Protection Plan? The Plan
supplements the vehicle warranties. See the Warranty
and Owner Assistance booklet or your dealer/retailer for
details.
Maintenance Requirements
Notice:Maintenance intervals, checks, inspections,
replacement parts, and recommended uids and
lubricants as prescribed in this manual are necessary
to keep this vehicle in good working condition. Any
damage caused by failure to follow scheduled
maintenance might not be covered by the vehicle
warranty.
Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep
the vehicle in good working condition, but also helps
the environment. All recommended maintenance is
important. Improper vehicle maintenance can even affect
the quality of the air we breathe. Improper uid levels or
the wrong tire ination can increase the level of emissions
from the vehicle. To help protect the environment, and to
keep the vehicle in good condition, be sure to maintain
the vehicle properly.
Using the Maintenance Schedule
We want to help keep this vehicle in good working
condition. But we do not know exactly how you will drive
it. You might drive very short distances only a few
times a week. Or you might drive long distances all the
time in very hot, dusty weather. You might use the
vehicle in making deliveries. Or you might drive
it to work, to do errands, or in many other ways.
Because of all the different ways people use their
vehicles, maintenance needs vary. You might need more
frequent checks and replacements. So please read
the following and note how you drive. If you have any
questions on how to keep the vehicle in good condition,
see your dealer/retailer.
6-2

Scheduled Maintenance
When the CHANGE ENGINE OIL message displays,
service is required for the vehicle. Have the vehicle
serviced as soon as possible within the next 600 miles
(1 000 km). It is possible that, if driving under the
best conditions, the engine oil life system may not
indicate that vehicle service is necessary for over a year.
However, the engine oil and lter must be changed at
least once a year and at this time the system must
be reset. Your dealer/retailer has trained service
technicians who will perform this work using genuine
parts and reset the system.
If the engine oil life system is ever reset accidentally,
service the vehicle within 3,000 miles (5 000 km)
since the last service. Remember to reset the oil life
system whenever the oil is changed. SeeEngine Oil Life
System on page 5-26for information on the Engine
Oil Life System and resetting the system.When the CHANGE ENGINE OIL message appears,
certain services, checks, and inspections are required.
Required services are described in the following for
“MaintenanceI” and “MaintenanceII.” Generally, it is
recommended that the rst service be MaintenanceI,
the second service be MaintenanceII, and then alternate
MaintenanceIand MaintenanceIIthereafter. However,
in some cases, MaintenanceIImay be required more
often.
MaintenanceI— Use MaintenanceIif the message
displays within 10 months since the vehicle was
purchased or MaintenanceIIwas performed.
MaintenanceII— Use MaintenanceIIif the previous
service performed was MaintenanceI. Always use
MaintenanceIIwhenever the message displays
10 months or more since the last service or if the
message has not come on at all for one year.
6-4

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. SeeEngine Oil on page 5-20. Reset oil life
system. SeeEngine Oil Life System on page 5-26.An Emission Control
Service.••
Visually check for any leaks or damage.See footnote (g).••
Inspect engine air cleaner lter. If necessary, replace lter. SeeEngine Air
Cleaner/Filter on page 5-28.See footnote (k).•
Check tire ination pressures and tire wear. SeeTires on page 5-62.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid as
needed.••
Perform any needed additional services. See “Additional Required Services”
in this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Replace passenger compartment air lter.See footnote (j).•
6-5

(i)Drain, flush, and refill cooling system. This service can
be complex; you should have your dealer/retailer perform
this service. See Engine Coolant on page 5-34 for what to
use. Inspect hoses. Clean radiator, condenser, pressure
cap, and filler neck. Pressure test the cooling system and
pressure cap.
(j)If driving regularly under dusty conditions, the filter
may require replacement more often.
(k)If driving regularly under dusty conditions, inspect
the filter at each engine oil change.
(l)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
(m)Drain, flush, and refill clutch hydraulic system at a
regular service interval (IorII) every two years. This
service can be complex; you should have your dealer/
retailer perform this service. See Hydraulic Clutch on
page 5-31.
(n)Drain, flush, and refill intercooler system. This service
can be complex; you should have your dealer/retailer
perform this service. See Engine Coolant on page 5-34.Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure vehicle safety,
dependability, and emission control performance. Your
dealer/retailer can assist with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to the
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-12.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel fill.
Engine Oil Level Check
Notice:It is important to check the engine oil
regularly and keep it at the proper level. Failure to
keep the engine oil at the proper level can cause
damage to the engine not covered by the vehicle
warranty.
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-20.
6-9

Coolant Level Check
Check the engine coolant level and, on ZR1 models,
check the intercooler coolant level. Add DEX-COOL®
coolant mixture if necessary. SeeEngine Coolant
on page 5-34.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer uid reservoir and add the proper uid if
necessary.
At Least Once a Month
Tire Inspection and Ination Check
Inspect the vehicle’s tires for wear and make sure they
are inated to the correct pressures. SeeInflation - Tire
Pressure on page 5-70.
At Least Once a Year
Starter Switch Check
{CAUTION:
When you are doing this inspection, the vehicle
could move suddenly. If the vehicle moves, you or
others could be injured.
1. Before starting this check, be sure there is enough
room around the vehicle.
2. Firmly apply both the parking brake and the regular
brake. SeeParking Brake on page 2-32.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
3. For automatic transmission vehicles, try to start the
engine in each gear. The vehicle should start only in
P (Park) or N (Neutral). If the vehicle starts in any
other position, contact your dealer/retailer for service.
For manual transmission vehicles, put the shift lever
in Neutral, push the clutch pedal down halfway, and
try to start the engine. The vehicle should start only
when the clutch pedal is pushed down all the way to
the oor. If the vehicle starts when the clutch pedal is
not pushed all the way down, contact your dealer/
retailer for service.
6-10

Automatic Transmission Shift Lock
Control System Check
{CAUTION:
When you are doing this inspection, the vehicle
could move suddenly. If the vehicle moves, you or
others could be injured.
1. Before starting this check, be sure there is enough
room around the vehicle. It should be parked on a
level surface.
2. Firmly apply the parking brake. SeeParking Brake
on page 2-32.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off and without applying the regular
brake, try to move the shift lever out of P (Park)
with normal effort. If the shift lever moves out
of P (Park), contact your dealer/retailer for service.
Parking Brake and Automatic
Transmission P (Park) Mechanism
Check
{CAUTION:
When you are doing this check, the vehicle could
begin to move. You or others could be injured and
property could be damaged. Make sure there is
room in front of the vehicle in case it begins to roll.
Be ready to apply the regular brake at once
should the vehicle begin to move.
Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.
To check the parking brake’s holding ability: With
the engine running and transmission in N (Neutral),
slowly remove foot pressure from the regular
brake pedal. Do this until the vehicle is held by the
parking brake only.
To check the P (Park) mechanism’s holding ability:
With the engine running, shift to P (Park). Then
release the parking brake followed by the regular
brake.
Contact your dealer/retailer if service is required.
6-11

Current and Past Model Order Forms
Technical Service Bulletins and Manuals are available
for current and past model GM vehicles. To request
an order form, specify year and model name of
the vehicle.
ORDER TOLL FREE: 1-800-551-4123
Monday-Friday 8:00 AM - 6:00 PM
Eastern Time
For Credit Card Orders Only
(VISA-MasterCard-Discover), visit Helm, Inc.
on the World Wide Web at: helminc.com
Or you can write to:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
Prices are subject to change without notice and without
incurring obligation. Allow ample time for delivery.
Note to Canadian Customers: All listed prices are
quoted in U.S. funds. Canadian residents are to make
checks payable in U.S. funds.
Vehicle Data Recording and
Privacy
Your GM vehicle has a number of sophisticated
computers that record information about the vehicle’s
performance and how it is driven. For example,
your vehicle uses computer modules to monitor and
control engine and transmission performance, to monitor
the conditions for airbag deployment and deploy
airbags in a crash and, if so equipped, to provide
antilock braking to help the driver control the vehicle.
These modules may store data to help your
dealer/retailer technician service your vehicle. Some
modules may also store data about how you operate the
vehicle, such as rate of fuel consumption or average
speed. These modules may also retain the owner’s
personal preferences, such as radio pre-sets, seat
positions, and temperature settings.
7-16

Audio System.................................................3-80
Audio Steering Wheel Controls....................3-106
Diversity Antenna System............................3-108
Navigation/Radio System,
see Navigation Manual..............................3-95
Radio Reception........................................3-108
Setting the Clock.........................................3-80
Theft-Deterrent Feature...............................3-106
XM™ Satellite Radio Antenna System...........3-108
Audio System(s).............................................3-81
Automatic Door Lock.......................................2-12
Automatic Transmission
Fluid..........................................................5-30
Operation...................................................2-26
B
Battery..........................................................5-50
Exterior Lighting Battery Saver......................3-17
Run-Down Protection...................................3-18
Bluetooth
®.....................................................3-96
Boost Gage...................................................3-49
Brake
Emergencies................................................ 4-6
Brake Fluid....................................................5-44
Brakes..........................................................5-44
System Warning Light..................................3-38
Braking........................................................... 4-4
Braking in Emergencies..................................... 4-6Break-In, New Vehicle.....................................2-21
Bulb Replacement...........................................5-56
Halogen Bulbs............................................5-57
Headlamp Aiming........................................5-56
Headlamps, Front Turn Signal,
and Parking Lamps..................................5-57
High Intensity Discharge (HID) Lighting...........5-56
Replacement Bulbs......................................5-59
Taillamps, Turn Signal, and Stoplamps............5-59
Buying New Tires...........................................5-78
C
Calibration.....................................................2-37
California Fuel.................................................. 5-7
California Perchlorate Materials Requirements....... 5-4
California Proposition 65 Warning....................... 5-4
Canadian Owners................................................ ii
Capacities and Specications..........................5-110
Carbon Monoxide...........................2-13, 2-35, 4-19
Care of
Safety Belts................................................5-95
Cargo Cover..................................................2-53
CD, MP3 .......................................................3-92
Center Console Storage Area...........................2-51
Chains, Tire...................................................5-85
Check
Engine Lamp..............................................3-42
Checking Things Under the Hood......................5-12
2

Customer Assistance Information (cont.)
Reporting Safety Defects to the
United States Government.........................7-14
Roadside Assistance Program......................... 7-7
Service Publications Ordering Information........7-15
D
Daytime Running Lamp...................................3-15
Defensive Driving............................................. 4-2
Disc, MP3......................................................3-92
Diversity Antenna System...............................3-108
Doing Your Own Service Work........................... 5-5
Door
Automatic Door Lock....................................2-12
Locks........................................................2-10
Power Door Locks.......................................2-12
Programmable Automatic Door Unlock............2-12
Driver Information Center (DIC).........................3-49
DIC Operation and Displays..........................3-49
DIC Vehicle Personalization..........................3-71
DIC Warnings and Messages........................3-54
Other Messages..........................................3-70
Driving
At Night.....................................................4-16
Before a Long Trip......................................4-17
Defensive..................................................... 4-2
Drunken....................................................... 4-3
Highway Hypnosis.......................................4-18Driving (cont.)
Hill and Mountain Roads..............................4-18
In Rain and on Wet Roads...........................4-16
Rocking Your Vehicle to Get it Out.................4-22
Winter........................................................4-19
Driving for Better Fuel Economy......................... 4-2
Dual Automatic Climate Control System.............3-24E
EDR .............................................................7-16
Electrical System
Add-On Equipment.....................................5-102
Engine Compartment Fuse Block.................5-106
Fuses and Circuit Breakers.........................5-103
Headlamp Wiring.......................................5-102
Instrument Panel Fuse Block.......................5-103
Power Windows and Other Power Options....5-102
Windshield Wiper Fuses.............................5-102
Engine
Air Cleaner/Filter.........................................5-28
Check and Service Engine Soon Lamp...........3-42
Coolant......................................................5-34
Coolant Temperature Gage...........................3-41
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-14
Exhaust.....................................................2-35
Oil .............................................................5-20
Oil Life System...........................................5-26
4

O
Odometer......................................................3-34
Off-Road Recovery..........................................4-13
Oil
Engine.......................................................5-20
Engine Oil Pressure Gage............................3-46
Oil, Engine Oil Life System..............................5-26
Older Children, Restraints................................1-25
One-to-Four Shift Light....................................3-38
Online Owner Center........................................ 7-5
OnStar, Privacy..............................................7-18
OnStar
®System, see OnStar®Manual...............2-40
Operation, Universal Home Remote System........2-44
Outlet Adjustment............................................3-29
Outlets
Accessory Power.........................................3-23
Outside
Automatic Dimming Mirror.............................2-39
Convex Mirror.............................................2-40
Heated Mirrors............................................2-40
Power Mirrors.............................................2-39
Overheated Engine Protection Operating Mode . . . 5-41
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
P
Paint, Damage..............................................5-100
Park
Shifting Into................................................2-33
Shifting Out of............................................2-34
Park Brake....................................................2-32
Parking
Over Things That Burn.................................2-35
Parking Your Vehicle.......................................2-34
Passenger Airbag Status Indicator.....................3-36
Passenger Compartment Air Filter.....................3-30
Passenger Sensing System..............................1-53
Passing.........................................................4-13
Perchlorate Materials Requirements, California...... 5-4
Phone
Bluetooth
®..................................................3-96
Power
Door Locks.................................................2-12
Electrical System.......................................5-102
Lumbar and Side Bolsters.............................. 1-3
Retained Accessory.....................................2-23
Seat............................................................ 1-3
Steering Fluid.............................................5-42
Windows....................................................2-17
9