light CHEVROLET CORVETTE 2018 Service Manual

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
Instruments and Controls 113
not used to perform an Emissions
Inspection/Maintenance test or to
service the vehicle may affect
vehicle operation. SeeAdd-On
Electrical Equipment 0214. See
your dealer if assistance is needed.
The vehicle may not pass
inspection if:
. The light is on when the engine
is running.
. The light does not come on
when the ignition is in
Service Mode.
. Critical emission control systems
have not been completely
diagnosed. If this happens, the
vehicle would not be ready for
inspection and might require
several days of routine driving
before the system is ready for
inspection. This can happen if
the 12-volt battery has recently
been replaced or run down, or if
the vehicle has been recently
serviced.
See your dealer if the vehicle will
not pass or cannot be made ready
for the test.Brake System Warning
Light
The vehicle brake system consists
of two hydraulic circuits. If one
circuit is not working, the remaining
circuit can still work to stop the
vehicle. For normal braking
performance, both circuits need to
be working.
If the warning light comes on, there
is a brake problem. Have the brake
system inspected right away.
MetricEnglish
This light should come on briefly
when the engine is started. If it does
not come on then, have it fixed so it
will be ready to warn you if there is
a problem.
If the light comes on and stays on,
there is a base brake problem.
{Warning
The brake system might not be
working properly if the brake
system warning light is on.
Driving with the brake system
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
Electric Parking Brake
Light
MetricEnglish
This light comes on when the
parking brake is applied. If the light
continues flashing after the parking
brake is released, or while driving,
there is a problem with the Electric

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
114 Instruments and Controls
Parking Brake system. A message
may also display in the Driver
Information Center (DIC).
If the light does not come on,
or remains flashing, see your dealer.
Service Electric Parking
Brake Light
The service electric parking brake
light should come on briefly when
starting the vehicle. If it does not
come on, have the vehicle serviced
by your dealer.
If this light stays on, there is a
problem with a system on the
vehicle that is causing the parking
brake system to work at a reduced
level. The vehicle can still be
driven, but should be taken to a
dealer as soon as possible. SeeElectric Parking Brake
0193.
A message may also display in the
Driver Information Center (DIC).
Antilock Brake System
(ABS) Warning Light
This light comes on briefly when the
engine is started.
If the light does not come on, have it
fixed so it will be ready to warn if
there is a problem.
If the light comes on while driving,
stop as soon as it is safely possible
and turn off the vehicle. Then start
the engine again to reset the
system. If the ABS light stays on,
or comes on again while driving, the
vehicle needs service. A chime may
also sound when the light comes on
steady. If the ABS light is the only light on,
the vehicle has regular brakes, but
the antilock brakes are not
functioning.
If both the ABS and the brake
system warning light are on, the
vehicle's antilock brakes are not
functioning and there is a problem
with the regular brakes. See your
dealer for service.
See
Brake System Warning Light
0 113.Traction Off Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer. If the system is working
normally, the indicator light then
turns off.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 115
The traction off light comes on when
the Traction Control System (TCS)
has been turned off by pressing and
releasing the TCS/Stability Control
button.
This light and the Electronic Stability
Control (ESC) OFF light come on
when ESC is turned off.
If the TCS is off, wheel spin is not
limited. Adjust driving accordingly.
SeeTraction Control/Electronic
Stability Control 0196.
Traction Control System
(TCS)/Electronic Stability
Control Light
If equipped, the Electronic Stability
Control (ESC) or TCS indicator/
warning light comes on briefly when
the engine is started. If the light does not come on, have
the vehicle serviced by your dealer.
If the system is working normally,
the indicator light turns off.
If the light is on and not flashing, the
TCS, and potentially the ESC
system have been disabled.
If the indicator/warning light is on
and flashing, the TCS and/or the
ESC system is actively working.
See
Traction Control/Electronic
Stability Control 0196.
Electronic Stability
Control (ESC) Off Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer. This light comes on when the ESC
system is turned off. If ESC is off,
the Traction Control System (TCS)
is also off.
If the ESC and TCS are off, the
system does not assist in controlling
the vehicle. Turn on the TCS and
the ESC systems and the warning
light turns off.
See
Traction Control/Electronic
Stability Control 0196.
Engine Coolant
Temperature Warning
Light
This light comes on briefly while
starting the vehicle.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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116 Instruments and Controls
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light goes off.
Caution
The engine coolant temperature
warning light indicates that the
vehicle has overheated. Driving
with this light on can damage the
engine and it may not be covered
by the vehicle warranty. See
Engine Overheating0240.
The engine coolant temperature
warning light comes on when the
engine has overheated.
If this happens, pull over and turn
off the engine as soon as possible.
See Engine Overheating 0240.
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine is
started. It provides information
about tire pressures and the TPMS.
When the Light Is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A Driver Information Center (DIC)
tire pressure message may also
display. Stop as soon as possible,
and inflate the tires to the pressure
value shown on the Tire and
Loading Information label. See Tire
Pressure 0266. When the Light Flashes First and
Then Is On Steady
If the light flashes for about a minute
and then stays on, there may be a
problem with the TPMS. If the
problem is not corrected, the light
will come on at every ignition cycle.
See
Tire Pressure Monitor
Operation 0268.
Engine Oil Pressure Light
Caution
Lack of proper engine oil
maintenance can damage the
engine. Driving with the engine oil
low can also damage the engine.
The repairs would not be covered
by the vehicle warranty. Check
the oil level as soon as possible.
Add oil if required, but if the oil
level is within the operating range
and the oil pressure is still low,
have the vehicle serviced. Always
follow the maintenance schedule
for changing engine oil.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374030) - 2018 - CRC - 11/8/17
Instruments and Controls 117
This light should come on briefly as
the engine is started. If it does not
come on, have the vehicle serviced
by your dealer.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might have
some other system problem. See
your dealer.
Low Fuel Warning Light
This light is near the fuel gauge and
comes on briefly when the ignition is
turned on as a check to show it is
working.It also comes on when the fuel tank
is low on fuel. The light turns off
when fuel is added. If it does not,
have the vehicle serviced.
Security Light
The security light should come on
briefly as the engine is started. If it
does not come on, have the vehicle
serviced by your dealer. If the
system is working normally, the
indicator light turns off.
If the light stays on and the engine
does not start, there could be a
problem with the theft-deterrent
system. See
Immobilizer Operation
0 43.
High-Beam On Light
This light comes on when the
high-beam headlamps are in use.
See Headlamp High/Low-Beam
Changer 0138.
Lamps On Reminder
This light comes on when the
exterior lamps are in use. See
Exterior Lamp Controls 0137.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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118 Instruments and Controls
Cruise Control Light
For vehicles with cruise control, the
cruise control light is white when the
cruise control is on and ready, and
turns green when the cruise control
is set and active.
The light turns off when the cruise
control is turned off. SeeCruise
Control 0205.
Door Ajar Light
This light comes on when a door is
open or not securely latched. Before
driving, check that all doors are
properly closed.
Information Displays
Driver Information
Center (DIC)
The DIC displays are shown in the
center of the instrument cluster in
the Info application. See Instrument
Cluster 0101. The Info application
is only available when the ignition is
on. The displays show the status of
many vehicle systems. The controls
for the DIC are on the right steering
wheel control.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 121
Head-Up Display (HUD)
{Warning
If the HUD image is too bright,
or too high in your field of view, it
may take you more time to see
things you need to see when it is
dark outside. Be sure to keep the
HUD image dim and placed low in
your field of view.
If equipped with HUD, some
information concerning the
operation of the vehicle is projected
onto the windshield.
The HUD information appears as an
image focused out toward the front
of the vehicle.
Caution
If you try to use the HUD image
as a parking aid, you may
misjudge the distance and
damage your vehicle. Do not use
the HUD image as a parking aid. The HUD information can be
displayed in various languages. The
speedometer reading and other
numerical values can be displayed
in either English or metric units.
The language selection is changed
through the radio and the units of
measurement is changed through
the instrument cluster. See
Vehicle
Personalization 0126 and“Settings”
under Instrument Cluster 0101.
The HUD may display different
alerts and information for vehicles
equipped with these features:
. Speedometer
. Tachometer
. Manual Transmission Gear (If
Equipped)
. Manual Paddle Shift Gear
Indicator (If Equipped)
These displays on the HUD are
for use when using the manual
paddle shift controls to shift the
transmission. See “Manual
Paddle Shift” inManual Mode
0 187. .
Shift Light
This light is used for
performance driving to indicate
that the vehicle's best
performance level has been
reached to shift the transmission
into the next higher gear. An
arrow pointing up will light up on
the display just prior to reaching
the engine fuel cut-off mode.
. G-Force Gauge
. Audio Information
. Upcoming Maneuver from
OnBoard Navigation
. Upcoming Maneuver from
OnStar
. Incoming Call

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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The HUD control is to the left of the
steering wheel on the instrument
panel.
To adjust the HUD image so that
items are properly displayed:1. Adjust the driver seat.
2. Start the engine.
3. Adjust the following HUD settings as needed.
$:Press down or lift up to adjust
the vertical position of the HUD
image in the windshield.
!: Press to select the display
view. Each press will cause the
display view to change to the next
view. If vehicle messages are
displayed, pressing the DIC select
button may clear the message. See
Driver Information Center (DIC)
0 118.
D:Lift up and hold to brighten the
display. Press down and hold to dim
the display. Hold down to turn the
display off. The HUD image will automatically
dim and brighten to compensate for
outside lighting. The HUD
brightness control can also be
adjusted as needed.
The HUD image can temporarily
light up depending on the angle and
position of the sunlight on the HUD
display. This is normal.
Polarized sunglasses could make
the HUD image harder to see.
Head-Up Display (HUD) Rotation
Option
This feature allows for adjusting the
angle of the HUD image.
Use the right steering wheel
controls to open and scroll through
different items and displays.
While in the options menu, press
w
orxto scroll to the HUD rotation
page. Press
pwhile Head-Up
Display Rotation is highlighted to
enter Adjust Mode.
Press
worxto adjust the angle of
the HUD display. Press SEL to save
the setting. To cancel the setting, press
o. The vehicle must be in
P (Park). See Instrument Cluster
0 101.
Display Views
There are several HUD views that
can be displayed:
Metric
English
Tour : Displays the vehicle speed,
gear position, shift indicator, and
driver mode.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 123
Metric
English
Sport : Displays the vehicle speed,
a circular tachometer, gear position,
shift indicator, and G-Force meter.
Metric
English
Track : Displays the vehicle speed,
a linear tachometer, gear position,
shift lights, and G-Force meter.
Metric
English
Timing : Displays a linear
tachometer, gear position, shift
lights, and performance or lap timer. The performance or lap timer
content displayed depends on which
feature is currently in use in the
instrument cluster. See
Instrument
Cluster 0101.
Interrupts
The interrupt information temporarily
displays in any HUD view. Once
displayed, HUD returns to the
previous HUD view. Interrupts may
include:
. Audio Information
. Navigation Turn-by-Turn
Information
. Incoming Call Information
. Vehicle AlertsMetric

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 125
HUD Troubleshooting
Check that:
.Nothing is covering the
HUD lens.
. HUD brightness setting is not
too dim or too bright.
. HUD is adjusted to the proper
height.
. Polarized sunglasses are
not worn.
. Windshield and HUD lens are
clean.
If the HUD image is not correct,
contact your dealer.
The windshield is part of the HUD
system. See Windshield
Replacement 0248.
Vehicle Messages
Messages displayed on the DIC
indicate the status of the vehicle or
some action that may be needed to
correct a condition. Multiple
messages may appear one after
another.
The messages that do not require
immediate action can be
acknowledged and cleared by
pressing
V. The messages that
require immediate action cannot be
cleared until that action is
performed.
All messages should be taken
seriously; clearing the message
does not correct the problem.
If a SERVICE message appears,
see your dealer.
Follow the instructions given in the
messages. The system displays
messages regarding the following
topics:
. Service Messages
. Fluid Levels
. Vehicle Security .
Brakes
. Ride Control Systems
. Driver Assistance Systems
. Cruise Control
. Lighting and Bulb Replacement
. Wiper/Washer Systems
. Doors and Windows
. Seat Belts
. Airbag Systems
. Engine and Transmission
. Tire Pressure
. Battery
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays when the
vehicle's propulsion power is
reduced. Reduced propulsion power
can affect the vehicle's ability to
accelerate. If this message is on,
but there is no observed reduction
in performance, proceed to your
destination. The performance may
be reduced the next time the vehicle