2007 CHEVROLET CORVETTE service indicator

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 323for 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 200.
322

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.
Additives
To provide cleaner air, all gasolines in the
United States are now required to contain additives
that will help prevent engine and fuel system
deposits from forming, allowing your emission
control system to work properly. In most cases,
you should not have to add anything to your
fuel. However, some gasolines contain only the
minimum amount of additive required to meet U.S.
Environmental Protection Agency regulations.
To help keep fuel injectors and intake valves clean,
or if your vehicle experiences problems due to
dirty injectors or valves, look for gasoline that is
advertised as TOP TIER Detergent Gasoline.
Also, your dealer has additives that will help
correct and prevent most deposit-related problems.
Gasolines containing oxygenates, such as
ethers and ethanol, and reformulated gasolines
may be available in your area. General Motors
recommends that you use these gasolines if they
comply with the specications described earlier.However, E85 (85% ethanol) and other fuels
containing more than 10% ethanol must no
be used in vehicles that were not designed for
those fuels.
Notice:Your vehicle was not designed for
fuel that contains methanol. Do not use
fuel containing methanol. It can corrode metal
parts in the fuel system and also damage
plastic and rubber parts. That damage would
not be covered under your warranty.
Some gasolines that are not reformulated for
low emissions may contain an octane-enhancing
additive called methylcyclopentadienyl manganese
tricarbonyl (MMT); ask the attendant where you
buy gasoline whether the fuel contains MMT.
General Motors recommends against the use of
such gasolines. Fuels containing MMT can reduce
the life of spark plugs and the performance of
the emission control system may be affected.
The malfunction indicator lamp may turn on.
If this occurs, return to your dealer for service.
323

Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that
make a high-pitched warning sound when the
brake pads are worn and new pads are needed.
The sound can come and go or be heard all
the time your vehicle is moving, except when you
are pushing on the brake pedal rmly.
{CAUTION:
The brake wear warning sound means that
soon the brakes will not work well. That
could lead to an accident. When you hear
the brake wear warning sound, have your
vehicle serviced.Notice:Continuing to drive with worn-out
brake pads could result in costly brake repair.
Some driving conditions or climates can cause
a brake squeal when the brakes are rst applied
or lightly applied. This does not mean something
is wrong with the brakes.
Brake linings should always be replaced as
complete axle sets.
Brake Pedal Travel
See your dealer/retailer if the brake pedal does
not return to normal height, or if there is a
rapid increase in pedal travel. This could be a
sign that brake service might be required.
Brake Adjustment
As you make brake stops, the disc brakes
automatically adjust for wear.
363

When the malfunction indicator is illuminated,
the system may not be able to detect or signal
low tire pressure as intended. TPMS malfunctions
may occur for a variety of reasons, including
the installation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functioning properly. Always check the TPMS
malfunction telltale after replacing one or more
tires or wheels on your vehicle to ensure that the
replacement or alternate tires and wheels allow
the TPMS to continue to function properly.
A Tire and Loading Information label, attached to
your vehicle, shows the size of your vehicle’s
original equipment tires and the correct ination
pressure for your vehicle’s tires when they
are cold. SeeLoading Your Vehicle on page 309,
for an example of the tire information label and
its location on your vehicle. Also seeInation - Tire
Pressure on page 386.Your vehicle’s TPMS can alert you about a
low or high tire pressure condition but it does
not replace normal tire maintenance. See
Ination - Tire Pressure on page 386and
When It Is Time for New Tires on page 393.
The SERVICE TIRE MONITOR message,
in the DIC, is displayed when the TPMS is
malfunctioning. For example, one or more
TPMS sensors may be inoperable or missing.
Also, the active handling system will be affected,
seeActive Handling System on page 283.
See your dealer for service.
391

M
Maintenance Schedule
Additional Required Services.................... 436
At Each Fuel Fill...................................... 439
At Least Once a Month............................ 439
At Least Once a Year.............................. 440
Introduction.............................................. 430
Maintenance Footnotes............................ 437
Maintenance Record................................ 447
Maintenance Requirements...................... 430
Normal Maintenance Replacement Parts ... 445
Owner Checks and Services.................... 438
Recommended Fluids and Lubricants....... 443
Scheduled Maintenance........................... 433
Using....................................................... 431
Your Vehicle and the Environment............ 431
Malfunction Indicator Light........................... 200
Manual Seats.................................................. 8
Manual Transmission
Fluid........................................................ 345
Operation................................................. 100
Memory Seat, Mirrors, Steering
Wheel Controls.......................................... 10Message
DIC Warnings and Messages................... 214
Mirrors
Automatic Dimming Rearview with
Compass.............................................. 110
Automatic Dimming Rearview with
OnStar
®and Compass ......................... 108
Manual Rearview Mirror........................... 108
Outside Automatic Dimming Mirror........... 113
Outside Convex Mirror............................. 114
Outside Power Heated Mirrors................. 113
MP3 ............................................................ 261
MyGMLink.com............................................ 455
N
Navigation System, Privacy ......................... 471
Navigation/Radio System,
see Navigation Manual............................. 269
New Vehicle Break-In.................................... 89
Normal Maintenance Replacement Parts..... 445
482

O
Odometer.................................................... 190
Off-Road Recovery...................................... 289
Oil
Engine..................................................... 333
Engine Oil Pressure Gage....................... 204
Oil, Engine Oil Life System......................... 340
Older Children, Restraints............................. 31
One-to-Four Shift Light................................ 195
Online Owner Center................................... 455
OnStar, Privacy........................................... 471
OnStar
®System, see OnStar®Manual........ 114
Operation, Universal Home
Remote System..............................119, 123
Other Warning Devices................................ 159
Outlet Adjustment........................................ 186
Outlets
Accessory Power..................................... 178
Outside
Automatic Dimming Mirror........................ 113
Convex Mirror.......................................... 114
Power Heated Mirrors.............................. 113
Overheated Engine Protection
Operating Mode....................................... 352
Owner Checks and Services....................... 438
Owners, Canadian.......................................... 3
P
Paint, Damage............................................ 415
Park (P)
Shifting Into............................................. 103
Shifting Out of......................................... 104
Parking
Brake....................................................... 102
Over Things That Burn............................ 105
Parking Your Vehicle................................... 105
Passenger Airbag Status Indicator............... 192
Passenger Compartment Air Filter............... 186
Passenger Position, Safety Belts................... 30
Passenger Sensing System........................... 59
Passing....................................................... 289
Power
Door Locks................................................ 80
Electrical System..................................... 419
Lumbar and Side Bolsters........................... 9
Retained Accessory (RAP)......................... 91
Seat............................................................ 8
Steering Fluid.......................................... 358
Windows.................................................... 86
Pretensioners, Safety Belt............................. 30
483