2000 CADILLAC DEVILLE headlamp

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Testing the Alarm
1. From inside the vehicle, roll down the window, then
get out of the vehicle, keeping the door open.
2. From outside of the vehicle, with the door open, lock
the vehicle using the power door lock or the remote
keyless entry transmitter and close the door.
Wait 30 seconds until the SECURITY light goes off.
3. Reach in and unlock the door using the manual lock
and open the door. The horn will sound and the
headlamps will flash.
If the alarm does not sound when it should, check to see
if the horn works. The horn fuse may be blown. To
replace the fuse, see ªFuses and Circuit Breakersº in the
Index. If the fuse does not need to be replaced, you may
need to have your vehicle serviced.
To reduce the possibility of theft, always activate the
theft
-deterrent system when leaving your vehicle.
Valet Lockout Switch
The valet lockout switch is
located inside the glovebox.
Pushing the VALET lockout switch to ON will disable
the use of the power trunk, fuel door and garage door
openers. Pushing the switch to OFF again will make
these features reusable. Locking the glove box with the
key will also help to secure your vehicle.
The remote keyless entry transmitter cannot be used to
open the trunk or fuel door if the valet lockout switch is
in the ON position. Also, the valet key will not unlock
the glovebox or trunk.

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Turn Signal/Multifunction Lever
Turn and Lane Change Signals
To signal a turn, move the lever all the way up or down.
The lever returns automatically when the turn is complete.
An arrow on the instrument
panel will flash in the
direction of the turn or
lane change.
Raise or lower the lever until the arrow starts to flash to
signal a lane change. Hold it there until the lane change
is complete. The lever returns when it's released.
If the turn signal is left on, a warning chime will sound
and the Driver Information Center (DIC) will display
TURN SIGNAL ON (after driving about a mile) to
remind you to turn it off.
Arrows that flash rapidly when signaling for a turn or
lane change may be caused by a burned out signal bulb.
Other drivers won't see the turn signal.
Replace burned
-out bulbs to help avoid possible
accidents. Check the fuse (see ªFuses and Circuit
Breakersº in the Index) and for burned
-out bulbs if the
arrow fails to work when signaling a turn.
Headlamp High/Low Beam
Push forward for high beam to change the headlamps
from low beam to high. Pull the lever back and then
release it to change from high beam to low.
This light located on the
instrument panel will be on,
indicating high
-beam usage.
Flash-To-Pass
This lets you use the high beam headlamps to signal the
driver in front of you that you want to pass.
Pull and hold the turn signal lever toward you to use.
When you do:

If the headlamps are either off or in the DRL mode,
the high beam headlamps will turn on. They'll stay
on as long as you hold the lever there. Release the
lever to turn them off.

If the headlamps are on highbeam, they will switch
to low beam. To return to high beam, push the lever
away from you.

2-46
Passing Another Vehicle While Using Cruise Control
Use the accelerator pedal to increase your speed. When
you take your foot off the pedal, your 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 up steep hills, you may have to step on the
accelerator pedal to maintain your speed. When going
downhill, you may have to brake or shift to a lower gear
to keep your speed down. Applying the brake or shifting
into a lower gear will take you out of cruise control. If
you need to apply the brake or shift to a lower gear due
to the grade of the downhill slope, you may not want to
attempt to use your cruise control feature.
Ending Cruise Control
To turn off the cruise control, step lightly on the brake
pedal, or press the CRUISE ON/OFF button on the
steering wheel.
Erasing Speed Memory
When you turn off the cruise control or the ignition,
your cruise control set speed memory is erased.Exterior Lamps
This control on the left
side of the instrument
panel controls these
lamp systems:

Headlamps

Taillamps

Parking Lamps

Sidemarker Lamps

License Plate Lamp

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Parking Lamps
Turn the lamp control knob clockwise to the first stop,
to turn on the parking, taillamps, sidemarker lamps. If it
is night, the instrument panel switch backlighting will
also illuminate. Turn the control knob counterclockwise
all the way back to turn the lamps and lights off.
Headlamps
Turn the control knob clockwise all the way to turn on
the parklamps and headlamps. Turn the control knob
counterclockwise to turn the lamps off.
Wiper
-Activated Headlamps
This feature activates the headlamps and parking lamps
after the windshield wipers have been in use for
approximately six seconds.
In order to operate the wiper
-activated headlamps, the
Twilight Sentinel
must be turned on; the ignition key
in the ON position and the windshield wipers on, or in a
delay setting. If the windshield wipers are active while
the ignition key is in ON, but the Twilight Sentinel
switch is off, a ªHeadlamps Suggestedº message will be
displayed on the Driver Information Center. This
message informs the driver that turning on the exterior
lamps is recommended.This feature lights the way in poor weather and it also
makes your vehicle more visible to other drivers. If the
wiper
-activated headlamps are on and the ignition
switch, Twilight Sentinel, or the wipers are turned off,
the wiper
-activated headlamps will immediately
turn off.
Lamps on Reminder
If the manual headlamp control is left on and a door is
opened, a warning chime will sound. An exception is
when the Twilight Sentinel function is active.
Daytime Running Lamps
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.

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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.