2005 CHEVROLET CORVETTE headlamp

When it is bright enough outside, the regular lamps will
go off, and the front turn signal lamps will take over.
If you start your vehicle in a dark garage, the automatic
headlamp system will come on immediately. Once
you leave the garage, it will take approximately
one minute for the automatic headlamp system to
change to DRL if it is light outside. During that delay,
your instrument panel cluster may not be as bright
as usual. Make sure your instrument panel brightness
knob is in the full bright position. SeeInstrument
Panel Brightness on page 3-19for more information.
If it is dark enough outside and the exterior lamp control
is off, a HEADLAMPS SUGGESTED message will
display on the Driver’s Information Center (DIC). This
message informs the driver that turning on the exterior
lamps is recommended.
Turning the exterior lamp control to off a second time,
or turning on the headlamps will remove the
HEADLAMPS SUGGESTED message. If the parking
lamps or the fog lamps were turned on instead,
the HEADLAMPS SUGGESTED message will continue
to be displayed.
As with any vehicle, you should turn on the regular
headlamp system when you need it.Fog Lamps
Use fog lamps for better vision in foggy or misty
conditions.
The fog lamps control is located on the multifunction
lever next to the exterior lamp control.
-(Fog Lamps):Turning the band to this position will
turn the fog lamps on.
When you turn the fog lamps on, the fog lamp light will
appear on the instrument panel cluster to indicate
that the fog lamps and the parking lamps are on.
If you turn the high-beam headlamps on, the fog lamps
will turn off. They will turn on again when you switch
to low-beam headlamps.
The ignition must be on for the fog lamps to operate.
Some localities have laws that require the headlamps to
be on along with the fog lamps.
3-17

Twilight Sentinel®
Twilight Sentinel®can turn your lamps on and off for
you. A light sensor on top of the instrument panel makes
the Twilight Sentinel
®work, so be sure it is not
covered.
With Twilight Sentinel
®, you will see the following
happen:
When it is dark enough outside, the front turn signal
lamps (DRL) will go off, and the headlamps and
parking lamps will come on. The other lamps
that come on with headlamps will also come on.
When it is bright enough outside, the headlamps
will go off, and the front turn signal lamps (DRL)
will come on, as long as the exterior lamp switch is
in the AUTO position.
If you start your vehicle in a dark garage, the automatic
headlamp system will come on immediately. Once
you leave the garage, it will take about one minute for
the automatic headlamp system to change to DRL if it is
light outside. During that delay, your instrument panel
cluster may not be as bright as usual. Make sure
your instrument panel brightness control is in full bright
position. SeeInstrument Panel Brightness on
page 3-19.You can idle the vehicle with the lamps off, even when
it is dark outside.
After starting the vehicle, turn the exterior lamp control
band on the multifunction lever to off and then
release it. The lamps will remain off until you turn the
control band to off again.
Twilight Sentinel
®also provides exterior illumination as
you leave the vehicle. If Twilight Sentinel®has turned
on the lamps when you turn off the ignition, your lamps
will remain on until:
The exterior lamp switch is moved from off to the
parking lamp position, or
a delay time that you select has elapsed.
See “Personal Options” underDIC Vehicle
Personalization on page 3-69to select the delay time
that you want. You can also select no delay time.
If you turn off the ignition with the exterior lamp switch
in the parking lamp or headlamp position, the Twilight
Sentinel
®delay will not occur. The lamps will turn off as
soon as the switch is turned off.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
3-18

Exterior Lighting Battery Saver
If the manual parking lamps or headlamps have been
left on, the exterior lamps will turn off as soon as
the ignition is turned off or RAP is active. This protects
against draining the battery in case you have
accidentally left the headlamps or parking lamps on.
The battery saver does not work if the headlamps are
turned on after the ignition switch is turned to off.
If you need to leave the lamps on, use the exterior lamp
control to turn the lamps back on.
Instrument Panel Brightness
The knob for this feature is
located on the left side of
the instrument panel.
Turn the knob clockwise to brighten the lights or
counterclockwise to dim them. During the day, this knob
will adjust the instrument panel brightness and at
night will adjust all interior lighting.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.
Courtesy Lamps
When any door or the hatch/trunk lid is opened, the
interior lamps will go on unless it is bright outside.
You can also turn the courtesy lamps on and off
by pressing the instrument panel brightness knob.
Entry/Exit Lighting
With entry lighting, the interior lamps will come on when
entering the vehicle. The interior lamps will come on
for about 20 seconds when the engine is off.
You can turn exit and entry lighting off by quickly turning
the courtesy lamps on and off.
Reading Lamps
Your inside rearview mirror includes two reading lamps.
The lamps will go on when a door is opened. When
the doors are closed, each lamp can be turned on
individually by pressing the switch for that lamp.
3-19

Security Light
For information regarding
this light, see
Theft-Deterrent Systems
on page 2-18.
Fog Lamp Light
The fog lamps light will
come on when the fog
lamps are in use.
The light will go out when the fog lamps are turned off.
SeeFog Lamps on page 3-17for more information.
Lights On Reminder
This light comes on
whenever the parking
lamps are on.
SeeHeadlamps on Reminder on page 3-16for more
information.
Highbeam On Light
This light comes on
whenever the high-beam
headlamps are on.
SeeHeadlamp High/Low-Beam Changer on page 3-9
for more information.
3-47

ENGINE PROTECTION REDUCE ENGINE RPM:You
will hear multiple chimes when this message is
displayed. This message will remain displayed and
active until the issue is resolved.
If the engine oil temperature exceeds 320°F (160°C),
this message is displayed. You should check the engine
coolant temperature and engine oil level. If your
engine is too hot, seeEngine Overheating on page 5-24.
Your vehicle may need service, so see your GM dealer.
You can monitor the oil temperature with the gages
button on the DIC.
HEADLAMPS SUGGESTED:If it is dark enough
outside and the headlamps and Twilight
Sentinel
®controls are off, this message will display.
This message informs the driver that turning on
the exterior lamps is recommended. It has become dark
enough outside to require the headlamps and/or
other exterior lamps.
HIGH TIRE PRESSURE:To acknowledge the warning,
press the RESET button. After you press the RESET
button, a message will reappear 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 LEFT FRONT, RIGHT
FRONT, LEFT REAR or 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 the RESET button. 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. SeeExtended Mobility Tires on page 5-56and
Ination - Tire Pressure on page 5-58.
HOT ENGINE AIR CONDITIONING OFF:This
message displays when the engine coolant becomes
hotter than the normal operating temperature. To avoid
added strain on a hot engine, the air conditioning
compressor is automatically turned off. When the coolant
temperature returns to normal, the A/C operation will
automatically resume. You can continue to drive
your vehicle. If this message continues to appear, have
the system repaired by your GM dealer as soon as
possible to avoid compressor damage.
ICE POSSIBLE:This message displays when the
outside air temperature is cold enough to create icy
road conditions.
LOW FUEL:This message displays when the fuel tank
is less than 10 percent full and the display is turned
off. A multiple chime will also sound when this message
is displayed. SeeFuel Gage on page 3-48.
3-58

Approach Lights:This option briey turns on the
parking lamps, the front fog lamps and the back-up
lamps during low light periods when the keyless access
transmitter is used to unlock the vehicle.
Press the OPTION button until APPROACH LIGHTS
appears on the display, then press the RESET button to
scroll through the following modes:
OFF
ON (default)
If you choose OFF, this option will turn off.
If you choose ON, the parking lamps, the front fog
lamps, and the back-up lamps will come on for
20 seconds during low light periods when all of the
following occurs:
You press the unlock button on the keyless access
transmitter.
Both of the doors are closed.
The vehicle is off or in RAP.
The lamps remain on for 20 seconds or until a door is
opened, the lock button on the keyless access
transmitter is pressed or the vehicle is no longer off or
in RAP.
SeeKeyless Access System on page 2-4for more
information.When the mode you want is selected, press the
OPTION button to set your choice and advance to the
next personal option.
Twilight Delay:This option allows you to set the
amount of time you want the parking lamps and front
fog lamps to remain on after you exit the vehicle.
This will occur when the vehicle is off or in RAP and the
headlamps are on due to the automatic headlamp
system. The parking lamps and front fog lamps will
remain on until the driver selected time expires,
the exterior lamp control is activated or the vehicle is no
longer off or in RAP.
Press the OPTION button until TWILIGHT DELAY
appears on the display, then press the RESET button to
scroll through the following modes:
OFF
15 S
30 S (default)
90 S
If you choose OFF, this option will turn off.
If you choose 15 S, the twilight delay time will be set to
15 seconds.
If you choose 30 S, the twilight delay time will be set to
30 seconds.
3-72

Here are some tips on night driving.
Drive defensively.
Do not drink and drive.
Adjust your inside rearview mirror to reduce the
glare from headlamps behind you.
Since you cannot see as well, you may need to
slow down and keep more space between you
and other vehicles.
Slow down, especially on higher speed roads. Your
headlamps can light up only so much road ahead.
In remote areas, watch for animals.
If you are tired, pull off the road in a safe place
and rest.
No one can see as well at night as in the daytime.
But as we get older these differences increase.
A 50-year-old driver may require at least twice as much
light to see the same thing at night as a 20-year-old.
What you do in the daytime can also affect your
night vision. For example, if you spend the day in bright
sunshine you are wise to wear sunglasses. Your
eyes will have less trouble adjusting to night. But if you
are driving, do not wear sunglasses at night. They
may cut down on glare from headlamps, but they also
make a lot of things invisible.You can be temporarily blinded by approaching
headlamps. It can take a second or two, or even several
seconds, for your eyes to re-adjust to the dark. When
you are faced with severe glare, as from a driver
who does not lower the high beams, or a vehicle with
misaimed headlamps, slow down a little. Avoid
staring directly into the approaching headlamps.
Keep your windshield and all the glass on your vehicle
clean — inside and out. Glare at night is made much
worse by dirt on the glass. Even the inside of the glass
can build up a lm caused by dust. Dirty glass makes
lights dazzle and ash more than clean glass would,
making the pupils of your eyes contract repeatedly.
Remember that your headlamps light up far less of a
roadway when you are in a turn or curve. Keep
your eyes moving; that way, it is easier to pick out dimly
lighted objects. Just as your headlamps should be
checked regularly for proper aim, so should your eyes
be examined regularly. Some drivers suffer from
night blindness — the inability to see in dim light — and
are not even aware of it.
4-18

You can run the engine to keep warm, but be careful.
{CAUTION:
Snow can trap exhaust gases under your
vehicle. This can cause deadly CO (carbon
monoxide) gas to get inside. CO could
overcome you and kill you. You cannot see it
or smell it, so you might not know it is in your
vehicle. Clear away snow from around the
base of your vehicle, especially any that is
blocking your exhaust pipe. And check around
again from time to time to be sure snow does
not collect there.
Open a window just a little on the side of the
vehicle that is away from the wind. This will
help keep CO out.
Run your engine only as long as you must. This saves
fuel. When you run the engine, make it go a little
faster than just idle. That is, push the accelerator
slightly. This uses less fuel for the heat that you get and
it keeps the battery charged. You will need a
well-charged battery to restart the vehicle, and possibly
for signaling later on with your headlamps. Let the
heater run for a while.
4-29