2003 CADILLAC DEVILLE headlamp

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-8
Safety Belts
.............................................. 1-9
Child Restraints
.......................................1-29
Air Bag Systems
......................................1-49
Restraint System Check
............................1-60
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-8
Windows
.................................................2-15
Theft-Deterrent Systems
............................2-19
Starting and Operating Your Vehicle
...........2-23
Mirrors
....................................................2-40
OnStar
žSystem
......................................2-45
HomeLinkžTransmitter
.............................2-47
Storage Areas
.........................................2-51
Sunroof
..................................................2-54
Vehicle Personalization
.............................2-55
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-29
Warning Lights, Gages and Indicators
.........3-40
Driver Information Center (DIC)
..................3-57
Trip Computer
.........................................3-79Audio System(s)
.......................................3-80
Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-31
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-4
Checking Things Under
the Hood
.............................................5-10
Headlamp Aiming
.....................................5-49
Bulb Replacement
....................................5-53
Windshield Wiper Blade Replacement
.........5-59
Tires
......................................................5-60
Appearance Care
.....................................5-84
Vehicle Identi®cation
.................................5-92
Electrical System
......................................5-93
Capacities and Speci®cations
...................5-101
Normal Maintenance Replacement Parts
....5-103
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance Information
.................. 7-2
Reporting Safety Defects
...........................7-10
Index................................................................ 1
2003 Cadillac DeVille Owner ManualM

Mirrors
Automatic Dimming Rearview Mirror
with OnStar
ž
Your vehicle may have an automatic dimming rearview
mirror with OnStaržsystem controls. For more
information about OnStarž, seeOnStaržSystem on
page 2-45.
When the automatic dimming feature is turned on, the
mirror automatically changes to reduce glare from
headlamps behind you. A photocell on the mirror senses
when it is becoming dark outside. Another photocell
built into the mirror face senses when headlamps
are behind you.
At night, when the glare is too bright, the mirror will
gradually darken to reduce glare. This change may take
a few seconds. The mirror will return to its clear,
daytime state when the glare is reduced.
Mirror Operation
O
(On/Off):This is the on/off button, located on the
lower left side of the mirror face.
To turn the automatic dimming feature on or off, press
the on/off button. The indicator light will be illuminated
when the automatic dimming feature is on.
Cleaning the Mirror
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.
Automatic Dimming Rearview Mirror
with OnStar
žand Compass
Your vehicle may have an automatic dimming rearview
mirror with a compass display. The mirror also
contains OnStar
žcontrols. For more information seeOnStaržSystem on page 2-45.
The automatic dimming feature functions the same as
that of the automatic dimming rearview mirror without a
compass. See
Automatic Dimming Rearview Mirror
with OnStaržon page 2-40.
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.
2-40

The mirrors can be manually folded inward to prevent
damage when going through an automatic car wash.
To fold, push the mirror toward the vehicle. To return the
mirror to its original position, push outward. Be sure
to return both mirrors to their original unfolded positions
before driving.
The mirrors also have an arrow on the mirror face that
¯ashes in the direction of the turn when the turn
signal is used. See
Turn Signal/Multifunction Lever on
page 3-8.
The mirrors can also be programmed for personalization
and the parallel parking feature if you have the
optional memory package. For more information, see
Memory Seat, Mirrors and Steering Wheel on page 2-55andDIC Vehicle Personalization on page 3-67.
Outside Automatic Dimming Mirror
If your vehicle is equipped with this feature, the
driver's side mirror will adjust for the glare of headlamps
behind you. This feature is controlled by the on and
off settings on the automatic dimming rearview mirror.
See
Automatic Dimming Rearview Mirror with OnStarž
on page 2-40.
Outside Curb View Assist Mirror
If your vehicle is equipped with memory mirrors, it will
also be capable of performing the curb view assist mirror
feature. This feature will cause the passenger's mirror
to tilt to a factory programmed position when the vehicle
is in REVERSE (R). This feature may be useful in
allowing you to view the curb when you are parallel
parking.
When the vehicle is shifted out of REVERSE (R) and a
®ve-second delay has occurred, the passenger's
mirror will return to its original position.
If further adjustment is needed after the mirror is tilted,
the mirror switch may be used.
This feature can be enabled/disabled through the Driver
Information Center (DIC). See
DIC Vehicle
Personalization on page 3-67for more information.
2-43

Power Tilt Wheel and Telescopic
Steering Column
If your vehicle has this
feature, the power tilt
wheel control is located on
the outboard side of the
steering column.
To operate the power tilt feature, push the control up
and the steering wheel will tilt up. Push the control down
and the steering wheel will go down.
If the power tilt control is pressed up or down and held
in that position, there will be a slight movement and
a slight pause followed by a continuous movement in the
direction the control is being pressed. This allows
very ®ne control of the steering wheel position. If the
control is bumped, the steering wheel moves
approximately one degree in the direction commanded.
Push the control forward and the steering wheel
moves toward the front of the vehicle. Push the control
rearward and the steering wheel moves toward therear of the vehicle. To set the memory position, see
DIC
Vehicle Personalization on page 3-67andMemory
Seat, Mirrors and Steering Wheel on page 2-55.
Turn Signal/Multifunction Lever
The lever on the left side of the steering column
includes the following:
·Turn and Lane-Change Signals
·Headlamp High/Low-Beam Changer
·Flash-To-Pass Feature
·Windshield Wipers
·Windshield Washer
For more information on the exterior lamps, see
Exterior
Lamps on page 3-15.
3-8

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 cluster and in the
outside rearview mirror will
¯ash in the direction of
the turn or lane change.
Raise or lower the lever until the arrow starts to ¯ash 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 ¯ash 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 and for burned-out bulbs if the
arrow fails to work when signaling a turn. See
Fuses and
Circuit Breakers on page 5-94.
Headlamp High/Low-Beam Changer
Push forward 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 on the instrument
panel cluster will be on,
indicating high-beam
usage.
Flash-To-Pass
This feature 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, the following will occur:
·If the headlamps are either off or in the Daytime
Running Lamps (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 high beam, they will switch
to low beam. To return to high beam, push the
lever away from you.
3-9

Windshield Wipers
WIPER:Turn the band on the turn signal lever to
control the wipers.
MIST:Turn the band toward you to MIST and then
release it for a single wiping cycle. For more cycles, hold
the band on MIST longer.
LO or HI:Turn the band away from you to either LO
(low speed) or to HI (high speed), depending on
the wiper speed you want.
Delay:Turn the band to one of the delay positions to
set the wiper speed for a long or a short delay between
wipes. The closer you move it to LO, the shorter the
delay.OFF:Turn the band to OFF to turn off the wipers.
Be sure to clear ice and snow from the wiper blades
before using them. If they're frozen to the windshield,
carefully loosen or thaw them. If the blades do become
damaged, get new blades or blade inserts.
Heavy snow or ice can overload the wiper motor. A
circuit breaker will stop the motor until it cools. Clear
away snow or ice to prevent an overload.
Your vehicle is equipped with wiper-activated headlamps.
After the windshield wipers have been on for
approximately six seconds, the headlamps will
automatically turn on. See
Wiper Activated HeadlampsunderExterior Lamps on page 3-15for more information.
RainsenseŸ II Wipers
If your vehicle has this feature, the moisture sensor is
mounted on the interior side of the windshield behind the
rearview mirror. It is used to automatically operate the
wipers by monitoring the amount of moisture build-up on
the windshield. Wipes occur as needed to clear the
windshield depending on driving conditions and the
sensitivity setting. In light rain or snow, fewer wipes will
occur. In heavy rain or snow, wipes will occur more
frequently. The RainsenseŸ wipers operate in a delay
mode as well as a continuous low or high speed as
needed. If the system is left on for long periods of time,
occasional wipes may occur without any moisture on the
windshield. This is normal and indicates that the
RainsenseŸ system is activated.
3-10

The RainsenseŸ system can be activated by turning
the wiper band to one of the ®ve sensitivity levels
indicated on the wiper stalk. The position closest to OFF
is the lowest sensitivity setting, level one. This allows
more rain or snow to collect on the windshield between
wipes. Turning the wiper band away from you to
higher sensitivity levels increases the sensitivity of the
system and frequency of wipes. The highest sensitivity
setting, level ®ve is closest to LO. A single wipe will
occur each time you turn the wiper stalk to a higher
sensitivity level to indicate that the sensitivity level has
been increased.
Notice:The wipers must be turned off when going
through a car wash to avoid damage.
The MIST and wash cycles operate as normal and are
not affected by the RainsenseŸ function. The
RainsenseŸ system can be overridden at any time by
manually turning the wiper band to LO or HI speed.
When RainsenseŸ is active, the headlamps will turn on
automatically. The headlamps will turn off again once
the wipers turn off if it is light enough outside. If it
is dark, they will remain on. See ª Wiper-Activated
Headlampsº under
Exterior Lamps on page 3-15for more information.
Notice:Do not place stickers or other items on the
exterior glass surface directly in front of the
moisture sensor. Doing this could cause the
moisture sensor to malfunction.
Windshield Washer
{CAUTION:
In freezing weather, don't use your washer
until the windshield is warmed. Otherwise the
washer ¯uid can form ice on the windshield,
blocking your vision.
At the top of the turn signal/multifunction lever there is a
paddle with the word PUSH on it. To spray washer
¯uid on the windshield, press and release this paddle.
The wipers will clear the windshield and either stop
or return to your preset speed. For more washer cycles,
press and hold the paddle.
CHECK WASHER FLUID will be displayed on the Driver
Information Center (DIC) when the washer ¯uid
reaches a low level.
3-11

Exterior Lamps
The exterior lamp control
is located to the left of the
steering wheel on the
instrument panel.
O(Exterior Lamp Control):Turn the control with
this symbol on it to operate the exterior lamps.
The exterior lamp control has three positions:
9(Off):Turn the control to this position to turn off all
lamps except the Daytime Running Lamps (DRL).
;(Parking Lamp):Turn the control to this position
to turn on the parking lamps together with the following:
·Sidemarker Lamps
·Taillamps
·License Plate Lamps
·Instrument Panel Lights
The parking brake indicator light will come on and stay
on while the parking lamps are on with the engine
off and the ignition in ACCESSORY or ON.
5(Headlamps):Turning the control to this position
turns on the headlamps, together with the previously
listed lamps and lights.
Wiper-Activated Headlamps
This feature activates the headlamps and parking lamps
after the windshield wipers have been in use for
approximately six seconds. To operate, the Twilight
Sentinel
žfeature must be turned on.
When the exterior lamp control is in the off position or
parking lamp position and the wiper control is on delay,
LO or HI, the HEADLAMPS SUGGESTED message
will appear on the Driver Information Center (DIC).
When the ignition is turned to OFF, the wiper-activated
headlamps will immediately turn off. The wiper-activated
headlamps will also turn off if the Twilight Sentinel
žor
the windshield wipers are turned off.
3-15