2000 CADILLAC DEVILLE light

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The DRL system will make the high-beam headlamps
come on at reduced intensity when:

it is still daylight and the ignition is on,

the headlamp switch is off and

the transaxle is not in PARK (P).
When DRL are on, only your high
-beam headlamps
(at reduced intensity) will be on. No other exterior
lamps such as the parking lamps, taillamps, etc. will be
on when the DRL are being used. Your instrument panel
won't be lit up either.
When the Twilight Sentinel control is on and it's dark
enough outside, the high
-beam headlamps (at reduced
intensity) will turn off and automatic high
-beam
headlamp operation will occur. When the Twilight
Sentinel switch is on and it's bright enough outside, the
automatic lamps will go off, and the high
-beam
headlamps at reduced intensity will take over.If it's dark enough outside and the Twilight Sentinel
control is off, a HEADLAMPS SUGGESTED message
will display on the Driver Information Center (DIC).
This message informs the driver that turning on the
exterior lamps is recommended even though the DRL
are still illuminated (it's become dark enough outside to
require the headlamps and/or other exterior lamps).
Turning on the Twilight Sentinel, the headlamp switch
or the fog lamp switch will remove the HEADLAMPS
SUGGESTED message.
To idle your vehicle at night with the DRL off, turn
off the Twilight Sentinel and shift the transaxle into
PARK (P). Placing your vehicle in PARK (P) disables
the DRL. The DRL will stay off until you shift out
of PARK (P).
To drive your vehicle at night with the DRL off, turn
off the Twilight Sentinel and manually turn on the
parking lamps.
As with any vehicle, you should turn on the regular
headlamp system when you need it.

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Fog Lamps (If Equipped)
Use the fog lamps for better
vision in foggy or misty
conditions. When you press
the fog lamp button, a fog
lamp symbol located in the
instrument panel will come
on to indicate that the fog
lamps and the parking
lamps are on.
Press the button again to turn them off.
If you turn on the high
-beam headlamps, the fog lamps
will turn off. They'll turn back on again when you
switch to low
-beam headlamps.
When the Twilight Sentinel is on and the fog lamp
switch is activated, the fog lamps will remain on as well
as the headlamps and parking lamps.
Cornering Lamps
The cornering lamps come on when the headlamps
or parking lamps are on and you signal a turn with
the multifunction lever. They provide more light
for cornering.
Twilight Sentinel

This control is next to
the headlamp knob. It
automatically switches the
lamps on and off by sensing
how dark it is outside.
To operate the Twilight Sentinel, leave the lamp knob
off and move the TWILIGHT control to any position
but OFF.

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If you move the control all the way to the right, the
lamps will remain on for approximately three minutes
after the ignition has been turned to OFF. If you move
the control so it is just on, the lamps will go off quickly
when you turn the ignition switch out of OFF. You can
adjust the delay time from only a few seconds to about
three minutes.
If it's dark enough outside and the Twilight Sentinel
control is off, a HEADLAMPS SUGGESTED message
will display on the Driver Information Center (DIC).
This message informs the driver that turning on the
exterior lamps is recommended (it's become dark
enough outside to require the headlamps and/or other
exterior lamps). Turning on the Twilight Sentinel, the
headlamp switch or the fog lamp switch will remove the
HEADLAMPS SUGGESTED message.Light Sensor
The light sensor for the DRL and the Twilight Sentinel
is located in the center of the front defogger grille. If
you cover the sensor, it will read ªdarkº and the lamps
will come on.

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Exterior Lighting Battery Saver
If the headlamp or manual parking lamp control
has been left on, the exterior lamps will turn off
approximately 10 minutes after the ignition is turned to
OFF. This protects draining the battery in case you have
accidentally left the headlamps or parking lamps on. If
you need to purposely leave the lamps on for more than
10 minutes with the ignition in OFF or ACCESSORY,
turn the manual control knob off and then back on.
To delay the lamps from turning off, see ªTwilight
Sentinelº in the Index.
If the headlamp switch is turned on after the ignition key
is moved to either OFF or ACCESSORY, the lamps will
not time out.
Interior Lamps
Instrument Panel
Intensity/Brightness Control
The displays automatically dim when it becomes dark
outside and your lights are on. The displays
automatically brighten when it becomes light outside.
Backlighting will only remain active as long as the
parking lamps are on and it is dark outside.
Courtesy Lamps
The courtesy lamps are located on the ceiling above the
rear seat. These lamps come on with the control lamp
knob or when any door is opened and it is dark outside.
Puddle lamps are located on the bottom of the front and
rear door trim.
Illuminated Entry
The illuminated entry system turns on the courtesy
lamps and the backlighting to the door switches and to
the lamp control knob when a door is opened or if you
press a remote keyless entry transmitter unlock button.
If activated due to the transmitter, the lighting will
remain active for about 40 seconds. Since the
illuminated entry system uses the light sensor, it must be
dark outside in order for the courtesy lamps to turn on.
The courtesy lamps turn off approximately 25 seconds
after the last door is closed. They will dim to off if the
ignition key is placed in ON, or immediately deactivate
if the power locks are activated.

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Parade Dimming
This feature prohibits dimming of the digital displays
and backlighting during daylight hours when the key is
in the ignition and the headlamps are on. This feature
operates with the light sensor for the Twilight Sentinel
and is fully automatic. When the light sensor reads
darkness outside and the park lamps are active, the
digital displays can be adjusted by turning the lamp
control knob counterclockwise to dim and clockwise to
brighten lighting.
Reading Lamps
The reading lamps are located on the overhead console
on the ceiling and in the rear door opening. These lamps
come on automatically when any door is opened and it is
dark outside. For manual operation, press the button to
turn them on. Press it again to turn them off.
If the reading lamps are left on, they automatically shut
off 10 minutes after the ignition has been turned off.
Map Lamps
These lamps are located in the front overhead console.
Press the button to turn them on. Press it again to turn
them off.

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Battery Load Management
The battery load management feature is designed to
monitor the vehicle electrical load and determine when
the battery is in a heavy discharge condition. During
times of high electrical loading, the engine may idle at a
higher RPM setting than normal to make sure the battery
charges. High electrical loads may occur when several
of the following are on: headlamps, high beams, fog
lamps, rear window defogger, high blower fan, heated
seats and engine cooling fans.
Inadvertent Power Battery Saver
This feature is designed to protect your vehicle's battery
against drainage from the interior lamps, trunk lamp, glove
box lamp, cigarette lighters or the garage door opener.
When the ignition is turned off, the power to these features
will automatically turn off after 10 minutes (three minutes
if a new car has 15 miles (24 km) or less). Power will be
restored for an additional 10 minutes if any door is
opened, the trunk is opened or the courtesy lamp switch
is turned on.
Mirrors
Electrochromic Day/Night Rearview Mirror
with Compass (If Equipped)
Your vehicle may have an electrochromic inside
rearview mirror with a compass.
By pressing the MIRROR side of the button located at
the bottom of the mirror, the mirror automatically
darkens to reduce the glare from headlamps behind you.
The mirror also includes an eight
-point compass display
in the upper right corner of the mirror face. When on,
the compass automatically calibrates as the vehicle
is driven.

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When cleaning the mirror, use a paper towel or similar
material dampened with glass cleaner. Do not spray
glass cleaner directly on the mirror as that may cause the
liquid cleaner to enter the mirror housing.
Cleaning Photocells
Use a cotton swab and glass cleaner to clean the
photocells when necessary.
Mirror Operation
The right side of the button, located at the bottom of the
mirror, turns the electrochromic mirror on and off. To
turn on the automatic dimming feature, press MIRROR.
To turn off automatic dimming, press MIRROR again.
The green indicator light will be illuminated when this
feature is active.Time Delay
The automatic mirror has a time delay feature which
prevents unnecessary changing from night back to the
day position. This delay prevents rapid changing of the
mirror as you drive under lights and through traffic.
Compass Operation
Press COMPASS once to turn the compass on or off.
When the ignition and the compass feature are on, the
compass will show two character boxes for
approximately two seconds. After two seconds, the
mirror will display the compass heading.
Compass Calibration
If after two seconds the display does not show a
compass heading (ªNº for North, for example), there
may be a strong magnetic field with the compass. Such
interference may be caused by a magnetic antenna
mount, magnetic note pad holder or a similar magnetic
item. If the letter ªCº should ever appear in the compass
window, the mirror needs calibration.
The mirror can be calibrated in one of two ways:

Drive the vehicle in circles at 5 mph (8 km/h) or less
until the display reads a direction, or

Drive the vehicle on your everyday routine.

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Ashtrays and Cigarette Lighter
NOTICE:
Don't put papers or other flammable items
into your ashtrays. Hot cigarettes or other
smoking materials could ignite them, causing a
damaging fire.
Front Ashtray
With the full center console, the ashtray is located below
the climate control system. To open, push down on
the cover. To clean the ashtray, lift it out by gripping
the sides.
For vehicles without the center console, pull the tray out
to reveal the ashtray. The tray is located beneath the
radio. To clean this ashtray, lift out by pulling on
the snuffer.
Rear Ashtray (Option)
To use the side rear ashtray located on the armrest, lift
the lid.
Cigarette Lighter (Option)
The cigarette lighter is located near the ashtray. Press it
all the way in and release. It will pop back by itself
when it's ready to light. You may also have a lighter
located at the rear seat air outlet.
If you have cigarette lighters in your vehicle, they can
be used to provide electrical power to accessories. See
ªAccessory Power Outletsºin the Index.
NOTICE:
Don't hold a cigarette lighter in with your hand
while it is heating. If you do, it won't be able to
back away from the heating element when it's
ready. That can make it overheat, damaging the
lighter and the heating element.