2012 CHEVROLET CORVETTE C6 coolant

Black plate (32,1)Chevrolet Corvette Owner Manual - 2012
10-32 Vehicle Care
If the overheat warning is displayed
with no sign of steam:
1. Turn the air conditioning off.
2. Turn the heater on to the highesttemperature and to the highest
fan speed. Open the windows
as necessary.
3. If in a traffic jam, shift to N (Neutral) while stopped. If it is
safe to do so, pull off the road,
shift to P (Park) or N (Neutral)
and let the engine idle.
If the temperature overheat gauge
is no longer in the overheat zone or
an overheat warning no longer
displays, the vehicle can be driven.
Continue to drive the vehicle slowly
for about 10 minutes. Keep a safe
vehicle distance from the vehicle in
front. If the warning does not come
back on, continue to drive normally.
If the warning continues, pull over,
stop, and park the vehicle
right away. If there is no sign of steam, idle the
engine for three minutes while
parked. If the warning is still
displayed, turn off the engine until it
cools down. Also, see
“Overheated
Engine Protection Operating Mode”
next in this section.
Overheated Engine
Protection
Operating Mode
This emergency operating mode
lets the vehicle be driven to a
safe place, up to 80 km (50 mi),
in an emergency situation. 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 firing groups
of cylinders helps prevent engine
damage. In this mode, there is a
significant loss in power and engine
performance. Driving extended distances in the
overheat protection mode should be
avoided.
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.
See Engine Oil on page 10‑14.
Power Steering Fluid
SeeEngine Compartment Overview
on page 10‑8 for reservoir location.

Black plate (34,1)Chevrolet Corvette Owner Manual - 2012
10-34 Vehicle Care
Washer Fluid
What to Use
When the vehicle needs windshield
washer fluid, be sure to read the
manufacturer's instructions before
use. If the vehicle will be operating
in an area where the temperature
may fall below freezing, use a fluid
that has sufficient protection against
freezing.
Adding Washer Fluid
Open the cap with the washer
symbol on it. Add washer fluid until
the tank is full. SeeEngine
Compartment Overview on
page 10‑8 for reservoir location. Notice
.When using concentrated
washer fluid, follow the
manufacturer's instructions
for adding water.
.Do not mix water with
ready-to-use washer fluid.
Water can cause the solution
to freeze and damage the
washer fluid tank and other
parts of the washer system.
Also, water does not clean as
well as washer fluid.
.Fill the washer fluid tank only
three-quarters full when it is
very cold. This allows for
fluid expansion if freezing
occurs, which could
damage the tank if it is
completely full.
.Do not use engine coolant
(antifreeze) in the windshield
washer. It can damage the
windshield washer system
and paint.
Brakes
Brake Wear (Except ZR1, Z06,
and Grand Sport)
This vehicle has 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 the vehicle is
moving, except when applying the
brake pedal firmly.
{WARNING
The brake wear warning sound
means that soon the brakes will
not work well. That could lead to
a crash. When the brake wear
warning sound is heard, have the
vehicle serviced.

Black plate (60,1)Chevrolet Corvette Owner Manual - 2012
10-60 Vehicle Care
Belt:A rubber coated layer of
cords that is located between
the plies and the tread. Cords
may be made from steel or other
reinforcing materials.
Bead
:The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire
:A pneumatic tire
in which the plies are laid at
alternate angles less than
90 degrees to the centerline of
the tread.
Cold Tire Pressure
:The
amount of air pressure in a tire,
measured in kPa (kilopascal)
or psi (pounds per square inch)
before a tire has built up heat
from driving. See Tire Pressure
on page 10‑62. Curb Weight
:The weight of a
motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil,
and coolant, but without
passengers and cargo.
DOT Markings
:A code
molded into the sidewall of a
tire signifying that the tire is in
compliance with the U.S.
Department of Transportation
(DOT) Motor Vehicle Safety
Standards. The DOT code
includes the Tire Identification
Number (TIN), an alphanumeric
designator which can also
identify the tire manufacturer,
production plant, brand, and
date of production.
GVWR
:Gross Vehicle Weight
Rating. See Vehicle Load Limits
on page 9‑14. GAWR FRT
:Gross Axle
Weight Rating for the front axle.
See Vehicle Load Limits on
page 9‑14.
GAWR RR
:Gross Axle
Weight Rating for the rear axle.
See Vehicle Load Limits on
page 9‑14.
Intended Outboard Sidewall
:
The side of an asymmetrical tire,
that must always face outward
when mounted on a vehicle.
Kilopascal (kPa)
:The metric
unit for air pressure.
Light Truck (LT‐Metric) Tire
:
A tire used on light duty trucks
and some multipurpose
passenger vehicles.
Load Index
:An assigned
number ranging from 1 to 279
that corresponds to the load
carrying capacity of a tire.

Black plate (3,1)Chevrolet Corvette Owner Manual - 2012
Service and Maintenance 11-3
Maintenance
Schedule
Owner Checks and Services
At Each Fuel Stop
.Check the engine oil level.
SeeEngine Oil on page 10‑14.
Once a Month
.Check the tire inflation
pressures. See Tire Pressure on
page 10‑62.
.Inspect the tires for wear.
See Tire Inspection on
page 10‑68.
.Check the windshield washer
fluid level. See Washer Fluid on
page 10‑34.
Engine Oil Change
When the CHANGE ENGINE OIL
SOON message displays, have the
engine oil and filter changed within
the next 1 000 km/600 mi. If driven
under the best conditions, the
engine oil life system might not
indicate the need for vehicle service
for more than a year. The engine oil
and filter must be changed at least
once a year and the oil life system
must be reset. Your trained dealer
technician can perform this work.
If the engine oil life system is reset
accidentally, service the vehicle
within 5 000 km/3,000 mi since the
last service. Reset the oil life
system when the oil is changed.
See Engine Oil Life System on
page 10‑19.
Required Services Every
12 000 km/7,500 mi
.Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system. See Engine
Oil on page 10‑14 andEngine
Oil Life System on page 10‑19.
.Check engine coolant level.
See Engine Coolant on
page 10‑26.
.Check windshield washer fluid
level. See Washer Fluid on
page 10‑34.
.Visually inspect windshield
wiper blades for wear, cracking,
or contamination. See Exterior
Care on page 10‑82. Replace
worn or damaged wiper blades.
See Wiper Blade Replacement
on page 10‑43.

Black plate (12,1)Chevrolet Corvette Owner Manual - 2012
11-12 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer.Usage Fluid/Lubricant
Engine Oil Use only engine oil licensed to the dexos1 specfication, or equivalent,
of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is
recommended. See
Engine Oil on page 10‑14.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant.
See
Engine Coolant on page 10‑26.
ZR1 Only: Intercooler System 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant.
See
Engine Coolant on page 10‑26.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 88862806,
in Canada 88862807).
Windshield Washer Optikleen
®Washer Solvent.
Hydraulic Clutch System Hydraulic Clutch Fluid. Use only GM Part No. 88958860,
in Canada 88901244, Super DOT-4 brake fluid.
Power Steering System GM Power Steering Fluid (GM Part No. 89021184, in Canada 89021186).

Black plate (3,1)Chevrolet Corvette Owner Manual - 2012
INDEX i-3
Cluster, Instrument . . . . . . . . . . . . . 5-9
Clutch, Hydraulic . . . . . . . . . . . . . 10-21
Collision Damage Repair . . . . . 13-15
Compass . . . . . . . . . . . . . . . . . . . . . . . 5-5
Competitive Driving Mode . . . . . 9-39
Competitive Driving, Racingor Other . . . . . . . . . . . . . . . . . . . . . . . 9-6
Connections, OnStar
®. . . . . . . . . 14-4
Control of a Vehicle . . . . . . . . . . . . . 9-4
Convenience Net . . . . . . . . . . . . . . . 4-3
Convertible Top . . . . . . . . . . . . . . . . 2-24 Messages . . . . . . . . . . . . . . . . . . . . 5-37
Convex Mirrors . . . . . . . . . . . . . . . . 2-16
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . 10-26
Engine TemperatureGauge . . . . . . . . . . . . . . . . . . . . . . 5-16
Cooling System . . . . . . . .10-25, 10-26 Engine Messages . . . . . . . . . . . . 5-39
Courtesy Lamps . . . . . . . . . . . . . . . . 6-6
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . 13-14
Cover Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Cruise Control . . . . . . . . . . . . . . . . . 9-45
Messages . . . . . . . . . . . . . . . . . . . . 5-38
Cupholders . . . . . . . . . . . . . . . . . . . . . 4-1
Customer Assistance . . . . . . . . . . 13-6 Offices . . . . . . . . . . . . . . . . . . 13-5, 13-6
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 13-6
Customer Information Service PublicationsOrdering Information . . . . . . 13-18
Customer Satisfaction
Procedure . . . . . . . . . . . . . . 13-1, 13-3
D
Damage Repair, Collision . . . . . 13-15
Danger, Warnings, andCautions . . . . . . . . . . . . . . . . . . . . . . . . iv
Data Recorders, Event . . . . . . . 13-20
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . . . 6-2
Defensive Driving . . . . . . . . . . . . . . . 9-3
Devices, Auxiliary . . . . . . . . . . . . . 7-16
Diagnostics, OnStar
®. . . . . . . . . . 14-5
Distracted Driving . . . . . . . . . . . . . . . 9-2 Door
Ajar Messages . . . . . . . . . . . . . . . 5-38
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Power Locks . . . . . . . . . . . . . . . . . . 2-10
Drive Belt Routing, Engine . . . . . 12-5
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . 5-26
Driving Competitive . . . . . . . . . . . . . . . . . . . 9-39
Defensive . . . . . . . . . . . . . . . . . . . . . . 9-3
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
For Better Fuel Economy . . . . . 1-24
Highway Hypnosis . . . . . . . . . . . . 9-10
Hill and Mountain Roads . . . . . . 9-10
If the Vehicle is Stuck . . . . . . . . . 9-13
Loss of Control . . . . . . . . . . . . . . . . 9-5
Off-Road Recovery . . . . . . . . . . . . 9-5
Vehicle Load Limits . . . . . . . . . . . 9-14
Wet Roads . . . . . . . . . . . . . . . . . . . . 9-9
Winter . . . . . . . . . . . . . . . . . . . . . . . . 9-11
Dual Automatic Climate
Control System . . . . . . . . . . . . . . . . 8-1

Black plate (4,1)Chevrolet Corvette Owner Manual - 2012
i-4 INDEX
E
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . 9-54
Electrical System Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-48
Fuses and Circuit
Breakers . . . . . . . . . . . . . . . . . . 10-47
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-51
Overload . . . . . . . . . . . . . . . . . . . 10-46
Emergency, OnStar
®. . . . . . . . . . 14-2
Engine Air Cleaner/Filter . . . . . . . . . . . 10-22
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 5-19
Compartment Overview . . . . . . . 10-8
Coolant . . . . . . . . . . . . . . . . . . . . . 10-26
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 5-16
Cooling System . . . . . . 10-25, 10-26
Cooling System Messages . . . . . . . . . . . . . . . . . . . 5-39 Engine (cont'd)
Drive Belt Routing . . . . . . . . . . . . 12-5
Exhaust . . . . . . . . . . . . . . . . . . . . . . 9-26
Oil Life System . . . . . . . . . . . . . 10-19
Oil Messages . . . . . . . . . . . . . . . . . 5-40
Oil Pressure Gauge . . . . . . . . . . 5-14
Overheated Protection
Operating Mode . . . . . . . . . . . 10-32
Overheating . . . . . . . . . . . . . . . . 10-30
Power Messages . . . . . . . . . . . . . 5-41
Running While Parked . . . . . . . . 9-27
Starting . . . . . . . . . . . . . . . . . . . . . . . 9-22
Entry/Exit Lighting . . . . . . . . . . . . . . 6-6
Event Data Recorders . . . . . . . . 13-20
Extender, Safety Belt . . . . . . . . . . 3-13
Exterior Lamp Controls . . . . . . . . . 6-1
Exterior Lamps Off Reminder . . . . . . . . . . . . . . . . . . . . . 6-2
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
F
FeaturesMemory . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Filter, Engine Air Cleaner . . . . . . . . . 10-22
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 6-2
Flashers, Hazard Warning . . . . . . 6-4
Flat Tire . . . . . . . . . . . . . . . . . . . . . . 10-77
Floor Mats . . . . . . . . . . . . . . . . . . . . 10-89
Fluid Automatic Transmission . . . . 10-20
Brakes . . . . . . . . . . . . . . . . . . . . . . 10-38
Power Steering . . . . . . . . . . . . . 10-32
Washer . . . . . . . . . . . . . . . . . . . . . 10-34
Fog Lamps Bulb Replacement . . . . . . . . . . . . . 6-5
Folding Mirrors . . . . . . . . . . . . . . . . 2-17
Front Air Dam . . . . . . . . . . . . . . . . . 9-19
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25
Front Seats Heated . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Black plate (5,1)Chevrolet Corvette Owner Manual - 2012
INDEX i-5
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-48Additives . . . . . . . . . . . . . . . . . . . . . 9-50
Economy Driving . . . . . . . . . . . . . 1-24
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 9-53
Filling the Tank . . . . . . . . . . . . . . . 9-51
Foreign Countries . . . . . . . . . . . . 9-49
Gasoline Specifications . . . . . . . 9-49
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Recommended . . . . . . . . . . . . . . . 9-48
Requirements, California . . . . . 9-49
System Messages . . . . . . . . . . . . 5-41
Fuses Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-48
Fuses and Circuit
Breakers . . . . . . . . . . . . . . . . . . 10-47
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-51G
Garage Door Opener . . . . . . . . . . 5-62Programming . . . . . . . . . . . . . . . . . 5-63
Gasoline Specifications . . . . . . . . . . . . . . . . . 9-49
Gauges Boost . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Engine Coolant
Temperature . . . . . . . . . . . . . . . . 5-16
Engine Oil Pressure . . . . . . . . . . 5-14
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Odometer . . . . . . . . . . . . . . . . . . . . . 5-12
Speedometer . . . . . . . . . . . . . . . . . 5-12
Tachometer . . . . . . . . . . . . . . . . . . . 5-12
Voltmeter . . . . . . . . . . . . . . . . . . . . . 5-16
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . . 5-8
General Information Service and Maintenance . . . . . 11-1
Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-54
Vehicle Care . . . . . . . . . . . . . . . . . . 10-2
Glove Box . . . . . . . . . . . . . . . . . . . . . . 4-1
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . 13-8
H
Halogen Bulbs . . . . . . . . . . . . . . . . 10-44
Hatch . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Hazard Warning Flashers . . . . . . . 6-4
Head Restraints . . . . . . . . . . . . . . . . 3-2
Head-up Display . . . . . . . . . . . . . . . 5-31
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . 10-44
Bulb Replacement . . . . . . . . . . 10-44
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . 6-2
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-2
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . 10-44
High-Beam On Light . . . . . . . . . . 5-25
High/Low Beam Changer . . . . . . 6-2
Lamps On Reminder . . . . . . . . . 5-25
Twilight Sentinel . . . . . . . . . . . . . . . 6-3
Heated Front Seats . . . . . . . . . . . . . 3-8
Heated Mirrors . . . . . . . . . . . . . . . . . 2-17
High-Beam On Light . . . . . . . . . . . 5-25
High-Speed Operation . . . . . . . . 10-64
Highway Hypnosis . . . . . . . . . . . . . 9-10