1999 CHEVROLET CORVETTE display

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If your vehicle is in cruise control when the Traction
Control System begins to limit wheel spin, the cruise
control will automatically disengage. (See ªTraction
Control Systemº in the Index.) When road conditions
allow you to safely use it again, you may turn the cruise
control back on.
Setting Cruise Control
CAUTION:
If you leave your cruise control switch on when
you're not using cruise, you might hit a button
and go into cruise when you don't want to. You
could be startled and even lose control. Keep the
cruise control switch off until you want to use it.
1. Move the cruise control switch to ON.
2. Get up to the speed you want.
3. Push the SET button at the end of the lever and
release it. The cruise set speed will be displayed by
the Driver Information Center (DIC).
4. Take your foot off the accelerator pedal. The pedal
will return to an ªidleº position.Resuming a Set Speed
Suppose you set the cruise control at a desired speed and
then you apply the brake or clutch pedal. This, of
course, disengages the cruise control. But you don't
need to reset it.
Once you're going about 25 mph (40 km/h) or more,
you can move the cruise control switch to R/A
(Resume/Accelerate) for about half a second. The
Driver Information Center (DIC) will display the cruise
set speed.
You'll go right back up to your chosen speed and
stay there.
Increasing Speed While Using Cruise Control
There are two ways to go to a higher speed:

Use the accelerator pedal to get to the higher speed.
The speed will not begin to increase until sufficient
pedal travel is achieved. Push the button at the end of
the lever, then release the button and the accelerator
pedal. You'll now cruise at the higher speed.
The Driver Information Center (DIC) will display
the cruise set speed.

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Move the cruise switch to R/A. Hold it there until
you get up to the speed you want, then release the
switch. (To increase your speed in very small
amounts, move the switch to R/A briefly, then
release it. Each time you do this, the vehicle will go
about 1 mph (1.6 km/h) faster.)
The Driver Information Center (DIC) will display
the cruise set speed.
Reducing Speed While Using Cruise Control
There are two ways to reduce speed while using
cruise control:

Push in the SET button at the end of the lever until
you reach the lower speed you want, then release it.
The Driver Information Center (DIC) will display
the cruise set speed.

To slow down in very small amounts, push the SET
button for less than half a second. Each time you do
this, you'll go 1 mph (1.6 km/h) slower.
The Driver Information Center (DIC) will display
the cruise set speed.Passing Another Vehicle While Using Cruise Control
Use the accelerator pedal to increase speed. When you
take your foot off the pedal, the vehicle will slow down
to the cruise control speed you set earlier.
Using Cruise Control on Hills
How well your cruise control will work on hills depends
upon your speed, load and the steepness of the hills.
When going downhill, you may have to brake or shift to
a lower gear to keep your speed down. Of course,
applying the brake takes you out of cruise control. Many
drivers find this to be too much trouble and don't use
cruise control on steep hills.
Ending Cruise Control
There are two ways to turn off the cruise control:

Step lightly on the brake pedal or push the clutch
pedal, if you have a manual transmission vehicle, or

Move the cruise switch to OFF.
The Driver Information Center (DIC) will display
the message ªCRUISE DISENGAGED.º
Erasing Speed Memory
When you turn off the cruise control or the ignition,
cruise control set speed memory is erased.

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Interior Lamps
Instrument Panel Brightness Control
This knob controls the
brightness of the instrument
panel lights when the
headlamps or parking lamps
are on.
Push and release the knob and it will pop out. Turn the
knob clockwise to brighten the lights or
counterclockwise to dim them.
Parade Mode
The instrument panel brightness knob has an added feature
called Parade Mode to assist you in seeing certain
instrument panel controls if your headlamps are on in the
daylight. Before turning the courtesy lamps on by turning
the button all the way clockwise, the radio, Driver
Information Center (DIC) display and heating and air
conditioning controls will come on at their maximum
brightness. This will occur only with the parking lamps or
headlamps on.
Courtesy Lamps
When any door or the hatch/trunk lid is opened, the
interior lamps will go on (unless it's bright outside). The
lamps will stay on for about 30 seconds or until you turn
on the ignition.
You can also turn on the courtesy lamps by turning the
interior brightness control knob all the way clockwise.
Be sure not to have this knob turned all the way down
with the lamps on during the day. Your Driver
Information Center (DIC) may not be visible.
Exit and Entry Lighting
With entry lighting, the interior lamps will come on when
entering the vehicle for up to 20 seconds. With exit
lighting, the interior lamps will come on when the key is
turned to OFF or a door is ajar for about 20 seconds.
You can turn exit and entry lighting off by quickly
turning the headlamps on and off or by quickly turning
the courtesy lamp switch on and off.

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2-77 Speedometer and Odometer
Your speedometer lets you see your speed in either miles
per hour (mph) or kilometers per hour (km/h).
You may note that there are not two separate scales for
mph and km/h. When you press the E/M
(English/Metric) button on the Driver Information
Center (DIC), the cluster will calculate the proper speed
and move the needle to the correct position. Either the
MPH or the km/h telltale will illuminate, depending on
which measurement you choose.
You may wonder what happens if your vehicle needs a
new odometer installed. If the new one can be set to the
mileage total of the old odometer, then that will be done.
If it can't, then a new instrument cluster is replaced in
the vehicle and a label must be put on the driver's door
to show the old mileage reading when the new odometer
was installed. See your dealer if a new odometer must
be replaced in your vehicle.
Tachometer
The tachometer displays the engine speed in thousands
of revolutions per minute (rpm).
Fuel will shut off at about 6200 rpm.
If you continue to drive your vehicle at the fuel shut off
rpm, you could damage your engine. Be sure to operate
your vehicle below the fuel shut off rpm or reduce your
rpm quickly when the fuel shuts off.
Warning Lights, Gages and Messages
This part describes the warning lights and gages that
may be on your vehicle. The pictures will help you
locate them.
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause an
expensive repair or replacement. Paying attention to
your warning lights and gages could also save you or
others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle's functions. As you
will see in the details on the next few pages, some
warning lights come on briefly when you start the
engine just to let you know they're working. If you are
familiar with this section, you should not be alarmed
when this happens.

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2-81 Traction Control System (TCS) Light
This light should come on
briefly as you start the
engine. If the light doesn't
come on then, have it fixed
so it will be ready to warn
you if there's a problem.
If it stays on, or comes on and the DIC shows a
SERVICE TRACTION SYSTEM message when you're
driving, there's a problem with your TCS system and
your vehicle needs service. When this light is on, the
system will not limit wheel spin. Adjust your driving
accordingly. If the driver turns off the Traction Control
System by pressing the button on the console, the TCS
system light will come on and the TRACTION
SYSTEM OFF message will show on the DIC.
Active Handling System Light
If your vehicle has the
optional Active Handling
System, this light will come
on briefly as you start the
engine. If the light does not
come on then, have it fixed
so it will be ready to warn
you if there is a problem.
If it stays on or comes on while you are driving, the
Driver Information Center (DIC) shows a SERVICE
ACTIVE HNDLG message and a chime sounds, there is
a problem with your Active Handling System and your
vehicle needs service. The driver can acknowledge this
message by pressing the RESET button. When the
SERVICE ACTIVE HNDLG message is displayed,
the Active Handling System will not assist you in
controlling the vehicle. You should have the system
serviced as soon as possible. Adjust your
driving accordingly.

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When the system is working, you will see the ACTIVE
HANDLING message displayed in the DIC. You may
also feel or hear the system working. This is normal.
If the driver turns off the Active Handling System by
pressing the button on the console, the Active Handling
System light will come on, a chime will sound, and the
TRAC/ACT HNDLG OFF message will be displayed in
the DIC. The Traction Control System will also be
turned off. See ªDriver Information Center Messagesº in
the Index for more information.
If the Active Handling System and the Traction Control
System are off, pressing the console button momentarily
will turn both systems on. The DIC will display the
TRAC/ACT HNDLG ON message, the instrument
cluster light will be off, and a chime will sound. See
ªDriver Information Center Messagesº in the Index
for more information.Engine Coolant Temperature Gage
This gage shows the engine
coolant temperature. If the
gage pointer moves into the
shaded area, your engine is
too hot!
This means that your engine coolant has overheated.
If you have been operating your vehicle under normal
driving conditions, you should pull off the road, stop
your vehicle and turn off the engine as soon as
possible. (The larger tic marks are in increments of
30
below 220
F (104
C) and in increments of
10
above 220
F (104
C).)
In ªProblems on the Road,º this manual shows what to
do. See ªEngine Overheatingº in the Index.

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Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel (see
ªFuelº in the Index). Poor fuel quality will cause your
engine not to run as efficiently as designed. You may
notice this as stalling after start
-up, stalling when you
put the vehicle into gear, misfiring, hesitation on
acceleration or stumbling on acceleration. (These
conditions may go away once the engine is warmed up.)
This will be detected by the system and cause the light
to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least one
full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
have your dealer or qualified service center check the
vehicle. Your dealer has the proper test equipment and
diagnostic tools to fix any mechanical or electrical
problems that may have developed.
Engine Oil Pressure Gage
The engine oil pressure
gage shows the engine oil
pressure in psi (pounds per
square inch) or kPa
(kilopascals) when the
engine is running.
Oil pressure should be 20 to 80 psi (140 to 550 kPa).
(In certain situations such as long, extended idles on hot
days, it could read as low as 6 psi (40 kPa) and still be
considered normal.) It may vary with engine speed,
outside temperature and oil viscosity, but readings above
the shaded area show the normal operating range.
Readings in the shaded area tell you that the engine is
low on oil, or that you might have some other oil
problem. See ªEngine Oilº in the Index.
The engine oil pressure can also be displayed using the
GAGES button on the Driver Information Center (DIC).
See ªDriver Information Centerº in the Index.

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This light can come on for the following reasons:

Low Oil Pressure

High Coolant Temperature

High or Low Battery Voltage

Low Fuel Level
Fuel Gage
Your fuel gage tells you
about how much fuel you
have left when the ignition
is on.
When the needle approaches the red zone, RESERVE
FUEL will appear on the Driver Information Center
(DIC) display. When the needle approaches the
ªE,º LOW FUEL will appear on the display. At this
time, you still have a little fuel left, but you should get
more soon.Press RESET to acknowledge a DIC message(s).
Pressing RESET will also turn off a DIC message but
the LOW FUEL message will come on again in 10
minutes if you have not added fuel to the vehicle.
Here are four things that some owners ask about. All
these things are normal and do not indicate that anything
is wrong with the fuel gage.

At the gas station, the gas pump shuts off before the
gage reads FULL (F).

It takes more (or less) fuel to fill up than the gage
reads. For example, the gage reads half full, but it
took more (or less) than half of the tank's capacity to
fill it.

The gage pointer may move while cornering, braking
or speeding up.

The gage may not indicate EMPTY (E) when the
ignition is turned off.