
Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Safety Belts
.............................................. 1-5
Child Restraints
.......................................1-22
Supplemental Inflatable Restraint (SIR)
........1-41
Restraint System Check
............................1-50
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-9
Windows
.................................................2-16
Theft-Deterrent Systems
............................2-20
Starting and Operating Your Vehicle
...........2-24
Mirrors
....................................................2-37
OnStar
®System
......................................2-42
HomeLink®Transmitter
.............................2-44
Storage Areas
.........................................2-49
Sunroof
..................................................2-50
Vehicle Personalization
.............................2-52
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-28
Warning Lights, Gages and Indicators
.........3-37
Driver Information Center (DIC)
..................3-52Trip Computer
.........................................3-74
Audio System(s)
.......................................3-75
Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-29
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
.........5-60
Tires
......................................................5-61
Appearance Care
.....................................5-87
Vehicle Identification
.................................5-95
Electrical System
......................................5-96
Capacities and Specifications
...................5-104
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-11
Index................................................................ 1
2004 Cadillac Seville Owner ManualM

How to Wear Safety Belts Properly
This part is only for people of adult size.
Be aware that there are special things to know about
safety belts and children. And there are different
rules for smaller children and babies. If a child will be
riding in your vehicle, seeOlder Children on page 1-22
orInfants and Young Children on page 1-25. Follow
those rules for everyone’s protection.
First, you’ll want to know which restraint systems your
vehicle has.
We’ll start with the driver position.
Driver Position
This part describes the driver’s restraint system.
Lap-Shoulder Belt
The driver has a lap-shoulder belt. Here is how to wear
it properly.
1. Close and lock the door.
2. Adjust the seat so you can sit up straight. To see
how, see “Seats” in the Index.3. Pick up the latch plate and pull the belt across you.
Do not let it get twisted.
The lap-shoulder belt may lock if you pull the belt
across you very quickly. If this happens, let the belt
go back slightly to unlock it. Then pull the belt
across you more slowly.
1-11

The right front passenger’s side impact air bag is in the
side of the passenger’s seatback closest to the door.
{CAUTION:
If something is between an occupant and an
air bag, the bag might not inflate properly or it
might force the object into that person causing
severe injury or even death. The path of an
inflating air bag must be kept clear. Don’t put
anything between an occupant and an air bag,
and don’t attach or put anything on the
steering wheel hub or on or near any other air
bag covering. Don’t let seat covers block the
inflation path of a side impact air bag.
1-46

CAUTION: (Continued)
To avoid this, everyone in the vehicle should
get out as soon as it is safe to do so. If you
have breathing problems but can’t get out of
the vehicle after an air bag inflates, then get
fresh air by opening a window or a door. If you
experience breathing problems following an air
bag deployment, you should seek medical
attention.
Your vehicle has a feature that will automatically unlock
the doors and turn the interior lamps on when the air
bags inflate (if battery power is available). You can lock
the doors again and turn the interior lamps off by
using the door lock and interior lamp controls.
In many crashes severe enough to inflate an air bag,
windshields are broken by vehicle deformation.
Additional windshield breakage may also occur from the
right front passenger air bag.
•Air bags are designed to inflate only once. After an
air bag inflates, you’ll need some new parts for your
air bag system. If you don’t get them, the air bag
system won’t be there to help protect you in another
crash. A new system will include air bag modules
and possibly other parts. The service manual for your
vehicle covers the need to replace other parts.
•Your vehicle is equipped with a crash sensing and
diagnostic module, which records information about
the frontal air bag system. The module records
information about the readiness of the system, when
the system commands air bag inflation and driver’s
safety belt usage at deployment. The module also
records speed, engine rpm, brake and throttle data.
•Let only qualified technicians work on your air bag
systems. Improper service can mean that an air bag
system won’t work properly. See your dealer for
service.
Notice:If you damage the covering for the driver’s
or the right front passenger’s air bag, or the air
bag covering on the driver’s and right front
passenger’s seatback, the bag may not work
properly. You may have to replace the air bag
module in the steering wheel, both the air bag
module and the instrument panel for the right front
passenger’s air bag, or both the air bag module
and seatback for the driver’s and right front
passenger’s side impact air bag. Do not open or
break the air bag coverings.
1-49

Keys...............................................................2-3
Remote Keyless Entry System.........................2-5
Remote Keyless Entry System Operation...........2-6
Doors and Locks.............................................2-9
Door Locks....................................................2-9
Central Door Unlocking System......................2-10
Power Door Locks........................................2-10
Programmable Automatic Door Locks..............2-11
Rear Door Security Locks..............................2-11
Lockout Protection........................................2-12
Leaving Your Vehicle....................................2-12
Trunk..........................................................2-13
Windows........................................................2-16
Power Windows............................................2-17
Sun Visors...................................................2-19
Theft-Deterrent Systems..................................2-20
PASS-Key
®III ..............................................2-22
PASS-Key®III Operation...............................2-22
Starting and Operating Your Vehicle................2-24
New Vehicle Break-In....................................2-24
Ignition Positions..........................................2-25
Starting Your Engine.....................................2-26Engine Coolant Heater..................................2-27
Automatic Transaxle Operation.......................2-28
Parking Brake..............................................2-31
Shifting Into Park (P).....................................2-32
Shifting Out of Park (P).................................2-34
Parking Over Things That Burn.......................2-34
Engine Exhaust............................................2-35
Running Your Engine While You Are Parked. . . .2-36
Mirrors...........................................................2-37
Automatic Dimming Rearview Mirror with
OnStar
®...................................................2-37
Automatic Dimming Rearview Mirror with
OnStar
®and Compass...............................2-38
Outside Power Mirrors...................................2-40
Outside Automatic Dimming Mirror..................2-40
Outside Curb View Assist Mirror.....................2-41
Outside Convex Mirror...................................2-41
Outside Heated Mirrors..................................2-41
OnStar
®System.............................................2-42
HomeLink®Transmitter...................................2-44
Programming the HomeLink®Transmitter.........2-45
Section 2 Features and Controls
2-1

There is a master key that works all of the lock cylinders
(driver’s door, trunk, ignition and glove box).
There is also a VALET key which only operates the
driver’s door and the ignition.Your vehicle has the PASS-Key
®III vehicle theft system.
Both the master and VALET key have a transponder in
the key head that matches a decoder in the vehicle’s
steering column. If a replacement key or any additional
key is needed, you must purchase this key from your
dealer. The key will have PK3 stamped on it. Keep the
bar code tag that came with the original keys. Give this
tag to your dealer if you need a new key made.
Any new PASS-Key
®III key must be programmed
before it will start your vehicle. SeePASS-Key®III on
page 2-22for more information on programming
your new key.
Notice:If you ever lock your keys in your vehicle,
you may have to damage the vehicle to get in.
Be sure you have spare keys.
In an emergency, contact Cadillac Roadside Assistance.
SeeRoadside Service on page 7-6.
If your vehicle is equipped with the OnStar
®system with
an active subscription and you lock your keys inside
the vehicle, OnStar
®may be able to send a command to
unlock your vehicle. SeeOnStar®System on page 2-42
for more information. Master Key
Valet Key
2-4

Remote Keyless Entry System
Operation
With this system you can lock and unlock your doors or
unlock your trunk from about 3 feet (1 m) up to 30 feet
(9 m) away using the remote keyless entry transmitter
supplied with your vehicle.
Q(Lock):Press this
button to lock the doors.
The parking lamps will flash
once and the horn will
sound once. Pressing lock
arms the theft-deterrent
system.
The parking lamps will not flash, however, if the manual
parking lamps are left on. Remote confirmation is not
operational if a door is open.You can program your vehicle so the parking lamps will
not flash and the horn will not sound. For more
information, seeDIC Vehicle Personalization on
page 3-63.
W(Unlock):Press this button to unlock the driver’s
door. The parking lamps on your vehicle will flash twice.
The parking lamps will not flash if they have been
turned on manually. Remote confirmation is not
operational if a door is open.
Press this button again within one to five seconds to
unlock the other doors. It will also disarm the
theft-deterrent system and turn on the interior lamps
at night.
You can program your vehicle so the parking lamps will
not flash. For more information, seeDIC Vehicle
Personalization on page 3-63.
2-6

.(Fuel Door):Press this button to open the fuel
door. The valet lockout switch must be in the OFF
position for this feature to work. SeeValet Lockout
SwitchunderTheft-Deterrent Systems on page 2-20for
more information.
V(Trunk):Press this button to open the trunk. The
valet lockout switch must be in the OFF position for
this feature to work. SeeValet Lockout Switchunder
Theft-Deterrent Systems on page 2-20for more
information.
The remote keyless entry transmitter can be used to
recall the memory settings for up to two drivers.
For more information, seeDIC Vehicle Personalization
on page 3-63andMemory Seat, Mirrors and Steering
Wheel on page 2-52.
Matching Transmitter(s) to Your
Vehicle
Each remote keyless entry transmitter is coded to
prevent another transmitter from unlocking your vehicle.
If a transmitter is lost or stolen, a replacement can
be purchased through your dealer. Remember to bring
any remaining transmitters with you when you go to
your dealer. When the dealer matches the replacement
transmitter to your vehicle, any remaining transmitters
must also be matched. Once your dealer has coded the
new transmitter, the lost transmitter will not unlock
your vehicle. Each vehicle can have a maximum of four
transmitters matched to it.
Vehicles are delivered with two transmitters. See your
dealer for information on how to obtain additional
transmitters.
2-7