ECO mode CHEVROLET CORVETTE 2021 Service Manual

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 2/10/21
Customer Information 315
If a Crash Occurs
If there has been an injury, call emergency
services for help. Do not leave the scene of
a crash until all matters have been taken
care of. Move the vehicle only if its position
puts you in danger, or you are instructed to
move it by a police officer.
Give only the necessary information to
police and other parties involved in the
crash.
For emergency towing seeRoadside
Assistance Program 0311.
Gather the following information:
.Driver name, address, and telephone
number
.Driver license number
.Owner name, address, and telephone
number
.Vehicle license plate number
.Vehicle make, model, and model year
.Vehicle Identification Number (VIN)
.Insurance company and policy number
.General description of the damage to the
other vehicle Choose a reputable repair facility that uses
quality replacement parts. See
“Collision
Parts” earlier in this section.
If the airbag has inflated, see What Will You
See after an Airbag Inflates? 055.
Managing the Vehicle Damage Repair
Process
In the event that the vehicle requires
damage repairs, GM recommends that you
take an active role in its repair. If you have
a pre-determined repair facility of choice,
take the vehicle there, or have it towed
there. Specify to the facility that any
required replacement collision parts be
original equipment parts, either new
Genuine GM parts or recycled original GM
parts. Remember, recycled parts will not be
covered by the GM vehicle warranty.
Insurance pays the bill for the repair, but
you must live with the repair. Depending on
your policy limits, your insurance company
may initially value the repair using
aftermarket parts. Discuss this with the
repair professional, and insist on Genuine
GM parts. Remember, if the vehicle is
leased, you may be obligated to have the vehicle repaired with Genuine GM parts,
even if your insurance coverage does not
pay the full cost.
If another party's insurance company is
paying for the repairs, you are not obligated
to accept a repair valuation based on that
insurance company's collision policy repair
limits, as you have no contractual limits
with that company. In such cases, you can
have control of the repair and parts choices
as long as the cost stays within reasonable
limits.
Publication Ordering Information
Service Manuals
Service manuals have the diagnosis and
repair information on the engine,
transmission, axle, suspension, brakes,
electrical system, steering system, body, etc.
Customer Literature
Owner’s manuals are written specifically for
owners and are intended to provide basic
operational information about the vehicle.
The owner’s manual includes the
Maintenance Schedule for all models.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 2/10/21
316 Customer Information
Customer literature publications available for
purchase include owner’s manuals, warranty
manuals, and portfolios. Portfolios include an
owner’s manual, warranty manual,
if applicable, and zip lock bag or pouch.
Current and Past Models
Service manuals and customer literature are
available for many current and past model
year GM vehicles.
To order, call 1-800-551-4123 Monday–Friday,
8:00 a.m.–6:00 p.m. eastern time
For credit card orders only (VISA,
MasterCard, or Discover), see Helm, Inc. at:
www.helminc.com.
To order by mail, write to:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
Make checks payable in U.S. funds.
Radio Frequency Statement
This vehicle uses license-exempt transmitters
/ receivers / systems that operate on a
radio frequency that complies with Part 15/
Part 18 of the Federal Communications
Commission (FCC) rules and with Innovation,Science and Economic Development (ISED)
Canada's license-exempt RSS(s) / RSP-100 /
ICES-GEN.
Operation is subject to the following two
conditions:
1. The device may not cause harmful interference.
2. The device must accept any interference received, including interference that may
cause undesired operation of the device.
Changes or modifications to any of these
systems by other than an authorized service
facility could void authorization to use this
equipment.
Reporting Safety Defects
Reporting Safety Defects to the
United States Government
If you believe that your vehicle has a
defect which could cause a crash or
could cause injury or death, you should
immediately inform the National
Highway Traffic Safety Administration
(NHTSA) in addition to notifying General
Motors. If NHTSA receives similar complaints, it
may open an investigation, and if it
finds that a safety defect exists in a
group of vehicles, it may order a recall
and remedy campaign. However, NHTSA
cannot become involved in individual
problems between you, your dealer,
or General Motors.
To contact NHTSA, you may call the
Vehicle Safety Hotline toll-free at
1-888-327-4236 (TTY: 1-800-424-9153); go
to
http://www.safercar.gov; or
write to:
Administrator, NHTSA
1200 New Jersey Avenue, S.E.
Washington, D.C. 20590
You can also obtain other information
about motor vehicle safety from
http://www.safercar.gov.
Reporting Safety Defects to the
Canadian Government
If you live in Canada, and you believe
that the vehicle has a safety defect,
notify Transport Canada immediately,

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 2/10/21
OnStar 321
Reactivation for Subsequent Owners
Press|and follow the prompts to speak to
an Advisor as soon as possible. The Advisor
will update vehicle records and explain
OnStar or connected service options.
How OnStar Service Works
Automatic Crash Response, Emergency
Services, Crisis Assist, Stolen Vehicle
Assistance, Remote Services, and Roadside
Assistance are available on most vehicles.
Not all OnStar services are available
everywhere or on all vehicles. For more
information, a full description of OnStar
services, system limitations, and OnStar User
Terms, Privacy Statement, and Software
Terms:
.Call 1-888-4ONSTAR (1-888-466-7827).
.See www.onstar.com (U.S.).
.See www.onstar.ca (Canada).
.Call TTY 1-877-248-2080.
.Press|to speak with an Advisor.
OnStar or connected services cannot work
unless the vehicle is in a place where OnStar
has an agreement with a wireless service
provider for service in that area. The
wireless service provider must also have
coverage, network capacity, reception, and technology compatible with OnStar or
connected services. Service involving location
information about the vehicle cannot work
unless GPS signals are available,
unobstructed, and compatible with the
OnStar hardware. OnStar or connected
services may not work if the OnStar
equipment is not properly installed or it has
not been properly maintained. If equipment
or software is added, connected,
or modified, OnStar or connected services
may not work. Other problems beyond the
control of OnStar
—such as hills, tall
buildings, tunnels, weather, electrical system
design and architecture of the vehicle,
damage to the vehicle in a crash, or wireless
phone network congestion or jamming —
may prevent service.
See Radio Frequency Statement 0316.
Services for People with Disabilities
Advisors provide services to help with
physical disabilities and medical conditions.
Press
|to help:
.Locate a gas station with an attendant to
pump gas.
.Find a hotel, restaurant, etc., that meets
accessibility needs.
.Provide directions to the closest hospital
or pharmacy in urgent situations.
TTY Users
OnStar has the ability to communicate to
deaf, hard-of-hearing, or speech-impaired
customers while in the vehicle. The available
dealer-installed TTY system can provide
in-vehicle access to all OnStar services,
except Virtual Advisor and OnStar
Turn-by-Turn Navigation.
If equipped, TTY mode can be turned on or
off by touching Settings, then Apps, and
then Phone. When TTY mode is on, phone
calls can be made or received with OnStar
using the infotainment display.
OnStar Personal Identification
Number (PIN)
A PIN is needed to access some OnStar
services. The PIN will need to be changed
the first time when speaking with an
Advisor. To change the OnStar PIN, contact
an OnStar Advisor by pressing
|or calling
1-888-4ONSTAR.
Warranty
OnStar equipment may be warranted as part
of the vehicle warranty.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 2/10/21
Index 329
Control of a Vehicle . . . . . . . . . . . . . . . . . . . . . .178
ControlsSteering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 114
Convenience Net . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Convertible Top . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Coolant Engine Temperature Gauge . . . . . . . . . . . . . 84
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Courtesy Transportation Program . . . . . . . . . 313
Coverage Explanations . . . . . . . . . . . . . . . . . . . . 137
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . .218 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Customer Assistance . . . . . . . . . . . . . . . . . . . . . 310
Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Text Telephone (TTY) Users . . . . . . . . . . . . 310
Customer Information Publications Ordering Information . . . . . 315
Customer Satisfaction Procedure . . . . . . . . . 308
Cybersecurity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
D
Damage Repair, Collision . . . . . . . . . . . . . . . . . .314
Danger, Warning, and Caution . . . . . . . . . . . . . .2 Data Collection
Infotainment System . . . . . . . . . . . . . . . . . . 318
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Data Recorder Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Data Recorders, Event . . . . . . . . . . . . . . . . . . . .318
Database Coverage Explanations . . . . . . . . . . 137
Daytime Running Lamps (DRL) . . . . . . . . . . . 107
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . . . .178
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Diagnostics Connected Services . . . . . . . . . . . . . . . . . . . . 326
Differential, Limited-Slip . . . . . . . . . . . . . . . . . .218
Distracted Driving . . . . . . . . . . . . . . . . . . . . . . . . . 177
Diversity Antenna System . . . . . . . . . . . . . . . . 121
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 16
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Drive Belt Routing, Engine . . . . . . . . . . . . . . . 307
Driver
Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Driver Assistance Systems . . . . . . . . . . . . . . . 220
Driver Information Center (DIC) . . . . . . . . . . . 92
Driver Mode Control . . . . . . . . . . . . . . . . . . . . . 208
Driving Better Fuel Economy . . . . . . . . . . . . . . . . . . . . 177 Driving (cont'd)
Competitive . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Hill and Mountain Roads . . . . . . . . . . . . . . 187
If the Vehicle is Stuck . . . . . . . . . . . . . . . . . 189
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 180
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 179
Track Events and Competitive . . . . . . . . . . 180
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 189
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Dual Clutch Transmission . . . . . . . . . . . . . . . . 198 Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . 201
Dual Clutch Transmission Fluid . . . . . . . . . . . .241
Dual Clutch Transmission Fluid Life System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
E
Electric Brake Boost . . . . . . . . . . . . . . . . . . . . . . 204
Electric Parking Brake . . . . . . . . . . . . . . . . . . . . 205
Electric Parking Brake Light . . . . . . . . . . . . . . . 88
Electrical Equipment, Add-On . . . . . . . . . . . . 229
Electrical SystemFuses and Circuit Breakers . . . . . . . . . . . . . 255
Instrument Panel Fuse Block . . . . . . . . . . . 256

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14622938) - 2021 - CRC - 2/10/21
332 Index
Lighting (cont'd)Illumination Control . . . . . . . . . . . . . . . . . . . 109
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Lights Airbag Readiness . . . . . . . . . . . . . . . . . . . . . . . 85
Antilock Brake System (ABS)Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Brake System Warning . . . . . . . . . . . . . . . . . 88
Charging System . . . . . . . . . . . . . . . . . . . . . . . 86
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Electric Parking Brake . . . . . . . . . . . . . . . . . . . 88
Electronic Stability Control (ESC), Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . . 91
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Front Lift System . . . . . . . . . . . . . . . . . . . . . . . 88
High-Beam On . . . . . . . . . . . . . . . . . . . . . . . . . . 92
High/Low Beam Changer . . . . . . . . . . . . . . 106
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . . 84
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Service Electric Parking Brake . . . . . . . . . . . 89
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Traction Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Limited-Slip Differential . . . . . . . . . . . . . . . . . . .218 Locks
Automatic Door . . . . . . . . . . . . . . . . . . . . . . . . . 16
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 16
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . . 17
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Low-Profile Tires . . . . . . . . . . . . . . . . . . . . . . . . . 263
Lower Anchors and Tethers for Children (LATCH System) . . . . . . . . . . . . . . . . 66
Lumbar Adjustment . . . . . . . . . . . . . . . . . . . . . . . 40 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
M
Maintenance
Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Maintenance Schedule . . . . . . . . . . . . . . . . . . . 293 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Malfunction Indicator Lamp . . . . . . . . . . . . . . . 86
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Map Data Updates . . . . . . . . . . . . . . . . . . . . . . . . 137
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Media Avoiding Untrusted Devices . . . . . . . . . . . . . 121
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 Messages
Engine Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Mirror Rear Camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Mirrors
Automatic Dimming . . . . . . . . . . . . . . . . . . . . 26
Automatic Dimming Rearview . . . . . . . . . . 26
Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Manual Rearview . . . . . . . . . . . . . . . . . . . . . . . 26
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Tilt in Reverse . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Mirrors, Interior Rearview . . . . . . . . . . . . . . . . . 26
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Driver Control . . . . . . . . . . . . . . . . . . . . . . . . . 208
Monitor System, Tire Pressure . . . . . . . . . . . 269
N
Navigation Connected Services . . . . . . . . . . . . . . . . . . . . 324
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Using the System . . . . . . . . . . . . . . . . . . . . . . 126
Navigation Symbols . . . . . . . . . . . . . . . . . . . . . 129
Net, Convenience . . . . . . . . . . . . . . . . . . . . . . . . . .72
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . 192