check engine light CHEVROLET CORVETTE 2007 6.G User Guide

{CAUTION:
Do not keep driving if the oil pressure is
low. If you do, your engine can become
so hot that it catches re. You or others
could be burned. Check your oil as
soon as possible and have your vehicle
serviced.
Notice:Lack of proper engine oil maintenance
may damage the engine. The repairs would
not be covered by your warranty. Always follow
the maintenance schedule in this manual for
changing engine oil.
Security Light
For information
regarding this light,
seeTheft-Deterrent
Systems on page 87.
Fog Lamp Light
The fog lamp light
will come on when
the fog lamps are
in use.
The light will go out when the fog lamps are
turned off. SeeFog Lamps on page 171for
more information.
205

CHANGE ENGINE OIL
This message displays when the life of the engine
oil has expired. SeeScheduled Maintenance on
page 433. After an oil change, the engine oil
life system must be reset. See “Engine Oil Life”
underDIC Controls and Displays on page 208.
Also, seeEngine Oil on page 333andEngine Oil
Life System on page 340for 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. See
Brake System Warning Light on page 196. Have
the brake system serviced by your dealer as
soon as possible. SeeBrakes on page 361.
CHECK COOLANT LEVEL
This message displays when the engine coolant
level is low. Have the cooling system serviced
by your dealer as soon as possible. SeeEngine
Coolant on page 347.
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 for service. SeeMalfunction
Indicator Lamp on page 200for more information.
CHECK OIL LEVEL
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 350.
To acknowledge the message, press the RESET
button. The message reappears every 10 minutes
until this condition changes.
217

ENGINE DRAG CONTROL ACTIVE
This message displays when engine drag control
is active. When driving in a lower gear in rainy,
snowy, or icy conditions and then letting up on the
accelerator or downshifting, the rear wheels
may begin to slip and this message displays. This
message stays on for a few seconds following
the engine drag control event.
ENGINE OVERHEATED – STOP
ENGINE
This message displays and a continuous chime
sounds when the engine has overheated. Stop and
turn the engine off immediately to avoid severe
engine damage. SeeEngine Overheating on
page 350.
ENGINE PROTECTION REDUCE
ENGINE RPM
This message displays if the engine oil
temperature exceeds 320°F (160°C). Check the
engine coolant temperature and engine oil level. If
the engine is too hot, seeEngine Overheating
on page 350. Your vehicle may need service, so
see your dealer.You can monitor the oil temperature with the
gages button on the DIC. SeeDIC Controls and
Displays on page 208.
Multiple chimes sound when this message is
displayed. This message remains displayed and
active until the issue is resolved.
HEADLAMPS SUGGESTED
This message displays if it is dark enough outside
and the headlamps and the Twilight Sentinel®
controls are off. This message informs the driver
that turning on the exterior lamps is recommended.
It has become dark enough outside to require
the headlamps and/or other exterior lamps.
HIGH TIRE PRESSURE
This message displays when one or more of the
tires is over-inated. This message also displays
LEFT FRONT, RIGHT FRONT, LEFT REAR, or
RIGHT REAR to indicate which tire is affected. You
can receive more than one tire pressure message
at a time. To read other messages that may have
been sent at the same time, press the RESET
button. If a tire pressure message appears on the
DIC, stop as soon as you can.
219

PRESS BRAKE TO START ENGINE
(Automatic Transmission Only)
This message displays if you try to start the
engine by pressing the keyless ignition start button
without having the brake pressed. The brake
needs to be pressed when starting the engine. See
Ignition Positions on page 90for more information.
REDUCED ENGINE POWER
If this message displays and the check engine
light comes on, a noticeable reduction in the
vehicle’s performance may occur. If the REDUCED
ENGINE POWER message is displayed, but
there is no reduction in performance, proceed to
your destination. The performance may be reduced
the next time the vehicle is driven.
The vehicle may be driven at a reduced speed
while the REDUCED ENGINE POWER message
is displayed, but acceleration and speed may
be reduced. Anytime the check engine light stays
on, the vehicle should be taken to your dealer
as soon as possible for diagnosis and repair. See
Malfunction Indicator Lamp on page 200for
more information.Multiple chimes sound when this message is
displayed.
To acknowledge the message, press the RESET
button. The message reappears every ve minutes
until this condition changes.
If the REDUCED ENGINE POWER message is
displayed in combination with the COOLANT
OVER TEMPERATURE message, seeEngine
Overheating on page 350.SERVICE ACTIVE HANDLING SYSTEM
This message displays if there is a problem
with the Active Handling System and your vehicle
needs service. The active handling system
light on the instrument panel cluster also turns on
and a chime sounds. See your dealer. When
this message is displayed, the system is not
working. Adjust your driving accordingly. See
Active Handling System on page 283for more
information.
224

SERVICE AIR CONDITIONING
This message displays when the electronic sensors
that control the air conditioning and heating
systems are no longer working. Have the climate
control system serviced by your dealer if you notice
a drop in heating and air conditioning efficiency.
SERVICE ANTILOCK BRAKES
If this message displays while you are driving, stop
as soon as possible and turn the ignition off. Then
start the engine again to reset the system. If the
message stays on, or comes back on again while
you are driving, your vehicle is in need of service.
See your dealer. If the anti-lock brake system (ABS)
warning light is on and the regular brake system
warning light is not on, you still have brakes, but do
not have ABS. If the regular brake system warning
light is also on, you do not have ABS and there is a
problem with the brakes. SeeAnti-Lock Brake
System Warning Light on page 197andBrake
System Warning Light on page 196.
If this message is displayed, the Traction Control
System (TCS) and the Active Handling System
will also be disabled. The DIC will scroll three
messages: SERVICE ANTILOCK BRAKES,
SERVICE TRACTION SYSTEM, and SERVICEACTIVE HANDLING, and the instrument panel
cluster lights will come on along with a chime.
When the service message is displayed, the
computer controlled systems will not assist the
driver. Have the system repaired by your dealer as
soon as possible. Adjust your driving accordingly.
To acknowledge these messages, press the
RESET button.SERVICE CHARGING SYSTEM
If this message displays while you are driving,
there may be a problem with the electrical charging
system. It could mean that there is a loose or
broken drive belt or that there is another electrical
problem. Have your vehicle checked right away
by your dealer. Driving while this message is
on could drain the battery.
If you must drive a short distance with the
message on, be certain to turn off the vehicle’s
accessories, such as the radio and air conditioner.
Multiple chimes sound when this message is
displayed.
To acknowledge the message, press the RESET
button. The message reappears every 10 minutes
until this condition changes.
225

TRACTION SYSTEM AND ACTIVE
HANDLING – ON
If the Traction Control System (TCS) and Active
Handling System are off, this message displays
briey, the instrument panel cluster light turns off,
and a chime sounds when the TCS and Active
Handling System are turned on by briey pressing
the Active Handling System button on the
console. SeeTraction Control System (TCS) on
page 281andActive Handling System on
page 283for more information.
TRACTION SYSTEM – OFF
This message displays and stays on, a single,
quick tone sounds, and the traction control system
(TCS) warning light on the instrument panel
cluster turns on when the TCS is turned off by
pressing the Active Handling System button on the
console. SeeTraction Control System (TCS)
Warning Light on page 197. SeeTraction Control
System (TCS) on page 281for more information.
To acknowledge the message, press the
RESET button.
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 281for 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 Controls and Displays on page 208and
Automatic Transmission Fluid on page 345. Also
check the engine coolant temperature. If it is also
hot, seeEngine Overheating on page 350.
231

If you keep pace with the traffic and allow realistic
following distances, you will eliminate a lot of
unnecessary braking. That means better braking
and longer brake life.
If your vehicle’s engine ever stops while you are
driving, brake normally but do not pump the
brakes. If you do, the pedal could get harder to
push down. If the engine stops, you will still have
some power brake assist. But you will use it
when you brake. Once the power assist is used
up, it can take longer to stop and the brake pedal
will be harder to push.
Under certain weather or operating conditions,
occasional brake squeak, squeal, or other
noise might be heard with your vehicle’s
performance braking system. This brake system
is designed for superior fade resistance and
consistent operation using high performance
brake pads. Brake noise is normal and does
not affect system performance.
Adding non-dealer/non-retailer accessories
can affect your vehicle’s performance. See
Accessories and Modications on page 319.Anti-Lock Brake System (ABS)
Your vehicle has the Anti-Lock Brake
System (ABS), an advanced electronic braking
system that will help prevent a braking skid.
When you start the engine and begin to drive
away, ABS will check itself. You might hear
a momentary motor or clicking noise while this
test is going on, and you might even notice that
the brake pedal moves a little. This is normal.
If there is a problem
with ABS, this warning
light will stay on.
SeeAnti-Lock Brake
System Warning
Light on page 197.
279

You can run the engine to keep warm, but
be careful.
{CAUTION:
Snow can trap exhaust gases under
your vehicle. This can cause deadly
CO (carbon monoxide) gas to get inside.
CO could overcome you and kill you.
You cannot see it or smell it, so you
might not know it is in your vehicle.
Clear away snow from around the base
of your vehicle, especially any that is
blocking the exhaust pipe. And check
around again from time to time to be
sure snow does not collect there.
Open a window just a little on the side of
the vehicle that is away from the wind.
This will help keep CO out.
Run your engine only as long as you must.
This saves fuel. When you run the engine, make it
go a little faster than just idle. That is, push the
accelerator slightly. This uses less fuel for the heat
that you get and it keeps the battery charged.
307

Service........................................................ 319
Accessories and Modications................... 319
California Proposition 65 Warning.............. 320
Doing Your Own Service Work.................. 320
Adding Equipment to the Outside
of Your Vehicle...................................... 321
Fuel............................................................. 321
Gasoline Octane........................................ 321
Gasoline Specications.............................. 322
California Fuel........................................... 322
Additives................................................... 323
Fuels in Foreign Countries........................ 324
Filling the Tank......................................... 324
Filling a Portable Fuel Container............... 327
Checking Things Under the Hood.............. 328
Hood Release........................................... 329
Engine Compartment Overview.................. 330
Engine Oil................................................. 333
Engine Oil Life System.............................. 340
Engine Air Cleaner/Filter............................ 342
Automatic Transmission Fluid.................... 345
Manual Transmission Fluid........................ 345
Hydraulic Clutch........................................ 346
Engine Coolant.......................................... 347
Coolant Surge Tank Pressure Cap............ 350Engine Overheating................................... 350
Overheated Engine Protection
Operating Mode..................................... 352
Cooling System......................................... 353
Power Steering Fluid................................. 358
Windshield Washer Fluid........................... 360
Brakes...................................................... 361
Battery...................................................... 364
Jump Starting............................................ 365
Rear Axle.................................................... 370
Bulb Replacement....................................... 371
High Intensity Discharge (HID) Lighting..... 371
Halogen Bulbs........................................... 372
Headlamps, Front Turn Signal, and
Parking Lamps....................................... 372
Taillamps, Turn Signal, and Stoplamps...... 374
Replacement Bulbs................................... 374
Windshield Replacement............................ 375
Windshield Wiper Blade Replacement....... 375
Tires............................................................ 378
Winter Tires.............................................. 379
Tire Sidewall Labeling............................... 380
Tire Terminology and Denitions............... 382
Extended Mobility Tires............................. 384
Ination - Tire Pressure............................. 386
Section 5 Service and Appearance Care
317

If you want to do some of your own service
work, you should use the proper service manual.
It tells you much more about how to service
your vehicle than this manual can. To order the
proper service manual, seeService Publications
Ordering Information on page 468.
Your vehicle has an airbag system. Before
attempting to do your own service work,
seeServicing Your Airbag-Equipped Vehicle
on page 64.
You should keep a record with all parts receipts
and list the mileage and the date of any service
work you perform. SeeMaintenance Record
on page 447.
Adding Equipment to the Outside
of Your Vehicle
Things you might add to the outside of your
vehicle can affect the airow around it. This may
cause wind noise and affect windshield washer
performance. Check with your dealer before
adding equipment to the outside of your vehicle.
Fuel
Use of the recommended fuel is an important
part of the proper maintenance of your vehicle.
To help keep the engine clean and maintain
optimum vehicle performance, GM recommends
the use of gasoline advertised as TOP TIER
Detergent Gasoline.
The 8th digit of the Vehicle Identication
Number (VIN) shows the code letter or number
that identies your vehicle’s engine. The VIN is at
the top left of the instrument panel. SeeVehicle
Identication Number (VIN) on page 418.
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.
321