1999 CHEVROLET CORVETTE sensor

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Your vehicle is equipped with a diagnostic module,
which records information about the air bag system.
The module records information about the readiness
of the system, when the sensors are activated and
driver's safety belt usage at deployment. Some
modules also record speed, engine rpm, brake and
throttle data.

Let only qualified technicians work on your air bag
system. Improper service can mean that your air bag
system won't work properly. See your dealer
for service.
NOTICE:
If you damage the covering for the driver's or the
passenger's air bag, the bag may not work
properly. You may have to replace the air bag
module in the steering wheel or both the air bag
module and the instrument panel for the
passenger's air bag. Do not open or break the air
bag coverings.
Servicing Your Air Bag-Equipped Vehicle
Air bags affect how your vehicle should be serviced.
There are parts of the air bag system in several places
around your vehicle. You don't want the system to
inflate while someone is working on your vehicle. Your
dealer and the Corvette Service Manual have
information about servicing your vehicle and the air bag
system. To purchase a service manual, see ªService and
Owner Publicationsº in the Index.
CAUTION:
For up to 10 minutes after the ignition key is
turned off and the battery is disconnected, an air
bag can still inflate during improper service. You
can be injured if you are close to an air bag when
it inflates. Avoid yellow wires, wires wrapped
with yellow tape or yellow connectors. They are
probably part of the air bag system. Be sure to
follow proper service procedures, and make sure
the person performing work for you is qualified
to do so.
The air bag system does not need regular maintenance.

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Exterior Lamps
Daytime Running Lamps / Automatic
Headlamp Control (Optional)
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
DRL can be helpful in many different driving
conditions, but they can be especially helpful in the
short periods after dawn and before sunset.
A light sensor on top of the instrument panel makes the
Automatic Headlamp Control (if equipped) work, so be
sure it isn't covered.
The DRL/Automatic Headlamp Control system will
make the front turn signal lamps come on when:

the ignition is on,

the headlamp switch is off and

the parking brake is released.
When the DRL are on, only the front turn signal lamps
will be on. The headlamps, taillamps, sidemarker and
other lamps won't be on. Your instrument panel won't
be lit up either.When it's dark enough outside, the front turn signal
lamps will turn off and the headlamps and parking
lamps will turn on. The other lamps that come on with
the headlamps will also come on.
When it's bright enough outside, the headlamps will go
off and the front turn signal lamps will come on.
To idle the vehicle with the DRL off, set the parking
brake while the ignition is in OFF or LOCK. Then start
the vehicle. The DRL, headlamps and parking lamps
will stay off until you release the parking brake.
The Automatic Headlamp Control feature can be turned
on or off except for vehicles first sold in Canada. See
ªDriver Information Center (DIC)º in the Index to turn
this feature on or off (if equipped with the Automatic
Headlamp Control feature).
As with any vehicle, you should turn on the regular
headlamp system when you need it.

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Gages can indicate when there may be or is a problem
with one of your vehicle's functions. Often gages and
warning lights work together to let you know when
there's a problem with your vehicle.
When one of the warning lights comes on and stays on
when you are driving, or when one of the gages shows
there may be a problem, check the section that tells you
what to do about it. Please follow this manual's advice.
Waiting to do repairs can be costly
-- and even
dangerous. So please get to know your warning lights
and gages. They're a big help.
Your vehicle also has a Driver Information Center that
works along with the warning lights and gages. See
ªDriver Information Center (DIC)º in the Index.
Safety Belt Reminder Light
When the key is turned to ON or START, a chime will
come on for about eight seconds to remind people to
fasten their safety belts, unless the driver's safety belt is
already buckled.
The safety belt light will
also come on and stay
on until the driver's belt
is buckled.
Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows a deployed air bag symbol. The
system checks the air bag's electrical system for
malfunctions. The light tells you if there is an electrical
problem. The system check includes the air bag sensors,
the air bag modules, the wiring and the diagnostic
module. For more information on the air bag system, see
ªAir Bagº in the Index.
This light will come on
when you start your engine,
and it will flash for a few
seconds. Then the light
should go out. This means
the system is ready.

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Driver Information Center (DIC)
The Driver Information Center (DIC) will display
information about how your vehicle is functioning, as well
as warning messages if a system problem is detected. The
DIC display area is located in the instrument cluster below
the speedometer and tachometer, directly above the
steering column.
The following buttons are on the DIC control panel which
is located to the right of the instrument panel cluster.
1 FUEL: Press this button to display fuel information
such as fuel economy and range.
2 GAGES: Use this button to display gage information
like oil pressure and temperature, coolant temperature,
transmission fluid temperature, battery voltage and
front/rear tire pressures.
3 TRIP: Use this button to display your total and trip
miles, the elapsed time function, your average speed and
the engine oil life.
4 OPTIONS: This button allows you to choose personal
options that are available on your vehicle, depending on
the options your vehicle is equipped with, such as
security, door locks, easy entry seats and language.
5 E/M: Use this button to change the display between
English and metric units.
RESET: This button, used along with the other buttons,
will reset system functions and turn off or acknowledge
messages on the Driver Information Center (DIC).
At the top of the DIC control buttons is a light sensor.
Be sure not to block the sensor or your lighting
functions may be disrupted.

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Easy Entry
The easy entry feature will only be available if the
vehicle is equipped with the memory option.
Press the OPTIONS button until SEAT EASY ENTRY
appears on the display, then use the RESET button to
page through the following choices:

SEAT EASY ENTRY ON

SEAT EASY ENTRY OFF
If you choose SEAT EASY ENTRY ON, when you turn the
ignition off and remove the key, the seat will automatically
move back and the telescopic steering wheel (if equipped)
will return to its full
-forward position for an easy exit or an
easy entrance when returning to the vehicle.
SEAT EASY ENTRY OFF turns off this option.
Languages
You can select which language the DIC will display its
messages. Press the OPTIONS button until the word
LANGUAGES appears on the display, then use the
RESET button to page through the following choices:

LANGUAGE ENGLISH

LANGUAGE FRENCH

LANGUAGE GERMAN

LANGUAGE SPANISHBlank Page
There is a blank page at the end of the OPTIONS menu.
When the blank page is displayed, you can access the
following items:
FOB TRAINING: This option allows you to match the
RFA transmitter(s) to your vehicle. You can access this
option by pressing and holding RESET for three
seconds while you are on the blank page at the end of
the OPTIONS menu. The message FOB TRAINING
will be displayed. See ªMatching Transmitter(s) To Your
Vehicleº in the Index for more information.
TIRE TRAINING: The Tire Pressure Monitor (TPM)
operates with battery-powered sensors that are located
inside the valve stems on each tire. Each sensor has a
unique ID code so the vehicle knows the tire location of
the sensor. When the vehicle reaches a speed of greater
than 15 mph (24 km/h), the sensors begin to send the
tire pressure readings to a receiver inside the vehicle.
These readings are displayed when using the GAGES
button on the DIC. If you are unable to display your tire
pressures while the vehicle speed is greater than 15 mph
(24 km/h), you may need to have your sensor ID codes
learned by the vehicle. See your dealer.

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HIGH TIRE PRESSURE - (LF, LR, RF, RR): Yo u
will hear two chimes when this message is displayed. To
acknowledge the warning, press RESET. After you press
RESET, a message will reappear and you will hear a
chime every 10 minutes until this condition changes.
This message indicates that the pressure in one of your
tires is higher than 42 psi (290 kPa). Next to the HIGH
TIRE PRESSURE message, you can see either LF
(left front), LR (left rear), RF (right front) or RR (right
rear) to indicate to you which tire is higher than 42 psi
(290 kPa). 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 RESET. If a tire
pressure message appears on the DIC, stop as soon as
you can. Have the tire pressures checked and set to those
shown on your Tire Loading Information Label.
See ªExtended Mobility Tiresº and ªTire Inflationº
in the Index.SERVICE TIRE MON SYS: If this message comes on,
a part on the Tire Pressure Monitor (TPM) is not
working properly. If you drive your vehicle while any of
the four sensors are missing or inoperable, the warning
will come on in approximately 10 minutes. If all four
sensors are missing, the warning will come on in
approximately 15 to 20 minutes. (All the sensors would
be missing, for example, if you put different wheels on
your vehicle without transferring the sensors.) If the
warning comes on and stays on, there may be a problem
with the TPM. See your dealer.

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Section 3 Comfort Controls and Audio Systems
In this section, you'll find out how to operate the comfort control and audio systems offered with your vehicle. Be
sure to read about the particular systems supplied with your vehicle.
3
-2 Comfort Controls
3
-2 Manual Comfort Controls
3
-4 Automatic Electronic Dual Climate Control
System (If Equipped)
3
-9 Sensors
3
-10 Air Conditioning
3
-11 Heating
3
-11 Defogging and Defrosting
3
-11 Rear Window Defogger
3
-12 Audio Systems
3
-13 Setting the Clock All Systems
3
-13 AM-FM Stereo with Cassette Tape Player and
Automatic Tone Control3
-18 AM-FM Stereo with Compact Disc Player and
Automatic Tone Control (If Equipped)
3
-23 Trunk-Mounted CD Changer (If Equipped)
3
-27 Theft-Deterrent Feature
3
-29 Understanding Radio Reception
3
-29 Tips About Your Audio System
3
-30 Care of Your Cassette Tape Player
3
-31 Care of Your Compact Discs
3
-31 Care of Your Compact Disc Player
3
-31 Fixed Mast Antenna
3
-31 Power Mast Antenna Care (If Equipped)
3
-32 Integrated Windshield and Rear Window
Antennas (If Equipped)

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If the system is in FRONT defrost when you shut the
engine off, it will restart in FRONT defrost unless the
engine is off for longer than 40 minutes. If the engine is
off longer than 40 minutes, the system will restart in the
operating mode you had set prior to FRONT defrost.
The air conditioning cools and dehumidifies air coming
into the vehicle. It also operates in defrost to help
remove moisture from the vehicle. The air conditioning
does not operate at temperatures below approximately
35
F to 40
F (2
C to 4
C). If the system is operating in
the AUTO mode, turning the air conditioning off will
delete AUTO from the digital display and show current
mode and fan settings. The AUTO button must be
pressed to return to the automatic mode operation.
See ªRear Window Defoggerº later in this section for
more information.Sensors
The Automatic Electronic Dual Climate Control
System uses several sensors to control operation and
display information.
Solar Load Sensor
This sensor is located on the top right side of the
defroster grille. The defroster grille is on the top of the
instrument panel.
The sensor monitors the sun's solar radiation and uses
this information as part of the automatic climate control
system when operating in the AUTO mode.
Be careful not to put anything over the sensor. When
covered, the sensor cannot compensate for changes in
the amount of heat the vehicle is absorbing from the sun.