
Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Safety Belts
.............................................. 1-6
Child Restraints
.......................................1-24
Supplemental In¯atable Restraint (SIR)
........1-44
Restraint System Check
............................1-52
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-9
Windows
.................................................2-15
Theft-Deterrent Systems
............................2-19
Starting and Operating Your Vehicle
...........2-23
Mirrors
....................................................2-37
OnStar
žSystem
......................................2-42
HomeLinkžTransmitter
.............................2-44
Storage Areas
.........................................2-48
Sunroof
..................................................2-50
Vehicle Personalization
.............................2-51
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-28
Warning Lights, Gages and Indicators
.........3-37
Driver Information Center (DIC)
..................3-53Trip Computer
.........................................3-77
Audio System(s)
.......................................3-78
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
.....................................5-51
Bulb Replacement
....................................5-55
Windshield Wiper Blade Replacement
.........5-62
Tires
......................................................5-63
Appearance Care
.....................................5-83
Vehicle Identi®cation
.................................5-91
Electrical System
......................................5-92
Capacities and Speci®cations
...................5-100
Normal Maintenance Replacement Parts
....5-101
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance Information
.................. 7-2
Reporting Safety Defects
............................ 7-9
Index................................................................ 1
2003 Cadillac Seville Owner ManualM

Vehicle Damage Warnings
Also, in this book you will ®nd these notices:
Notice:These mean there is something that could
damage your vehicle.
A notice will tell you about something that can damage
your vehicle. Many times, this damage would not be
covered by your warranty, and it could be costly. But the
notice will tell you what to do to help avoid the
damage.
When you read other manuals, you might see
CAUTION and NOTICE warnings in different colors or in
different words.
You'll also see warning labels on your vehicle. They use
the same words, CAUTION or NOTICE.
Vehicle Symbols
Your vehicle has components and labels that use
symbols instead of text. Symbols, used on your vehicle,
are shown along with the text describing the operation
or information relating to a speci®c component, control,
message, gage or indicator.
If you need help ®guring out a speci®c name of a
component, gage or indicator, reference the following
topics:
·Seats and Restraint Systems in Section 1
·Features and Controls in Section 2
·Instrument Panel Overview in Section 3
·Climate Controls in Section 3
·Warning Lights, Gages and Indicators in Section 3
·Audio System(s) in Section 3
·Engine Compartment Overview in Section 5
iv

Retained Accessory Power (RAP)
The following accessories on your vehicle may be used
for up to 10 minutes after the ignition key is turned
from ON to OFF:
·Cellular Phone (If Equipped)
·Radio
·Power Windows
·Audio Steering Wheel Controls
·Sunroof (Option)
Power to these accessories stops after 10 minutes or if
a door is opened. If you want power for another
10 minutes, close all the doors and turn the ignition key
to ON and then back to OFF. If the cellular phone is
being used while retained accessory power is active, the
timer is suspended to avoid interruption of the call.
The timer resets to 10 minutes at the end of the call.
Starting Your Engine
Move your shift lever to PARK (P) or NEUTRAL (N).
Your engine won't start in any other position ± that's a
safety feature. To restart when you're already moving,
use NEUTRAL (N) only.
Notice:Do not try to shift to PARK (P) if your
vehicle is moving. If you do, you could damage the
transaxle. Shift to PARK (P) only when your
vehicle is stopped.
1. With your foot off the accelerator pedal, turn your
ignition key to START. When the engine starts, let
go of the key. The idle speed will go down as
your engine gets warm.
Notice:Holding your key in START for longer than
15 seconds at a time will cause your battery to
be drained much sooner. And the excessive heat
can damage your starter motor. Wait about
15 seconds between each try to help avoid draining
your battery or damaging your starter.
2-25

Trip Computer................................................3-77
Oil Life Indicator...........................................3-77
Audio System(s).............................................3-78
Setting the Time for Radios without Radio
Data Systems (RDS)..................................3-78
Setting the Time for Radios with Radio
Data Systems (RDS)..................................3-78
Radio with Cassette and CD (Base Level)........3-79
Radio with Cassette and CD (Up Level)...........3-87
Navigation/Radio System...............................3-98
Console-Mounted CD Changer........................3-99Radio Personalization with Home and
Away Feature..........................................3-102
Theft-Deterrent Feature................................3-102
Audio Steering Wheel Controls......................3-103
Understanding Radio Reception....................3-103
Care of Your Cassette Tape Player...............3-104
Care of Your CDs.......................................3-105
Care of Your CD Player...............................3-105
Diversity Antenna System.............................3-106
XMŸ Satellite Radio Antenna System
(48 Contiguous US States)........................3-106
Section 3 Instrument Panel
3-2

The main components of the instrument panel are the following:
A. Air Outlets. See
Outlet Adjustment on page 3-33.
B. Driver Information Center (DIC) Buttons. See
DIC Controls and Displays on page 3-53.
C. Turn Signal/Multifunction Lever. See
Turn
Signal/Multifunction Lever on page 3-9.
D. Climate Controls and OnStaržSteering Wheel
Controls (or Cellular Telephone Controls, If
Equipped).
See
Steering Wheel Climate Controls on page 3-35andOnStaržSystem on page 2-42.
E. Instrument Panel Cluster. See
Instrument Panel
Cluster on page 3-38.
F. Windshield Wiper/Washer Lever. See ªWindshield
Wipersº under
Turn Signal/Multifunction Lever
on page 3-9.
G. Audio Steering Wheel Controls. See
Audio Steering
Wheel Controls on page 3-103.
H. Ignition Switch. See
Ignition Positions on page 2-24.
I. Air Outlet Thumbwheel. See
Outlet Adjustment
on page 3-33.
J. Hazard Warning Flasher Button. See
Hazard
Warning Flashers on page 3-6.K. Audio System. See
Audio System(s) on page 3-78.
L. Exterior Lamp Controls. See
Exterior Lamps on
page 3-16.
M. Hood Release. See
Hood Release on page 5-11.
N. Fuel Door Release. See
Filling Your Tank on
page 5-6.
O. Trunk Release Button. See
Trunk on page 2-12.
P. Cruise Control. See ªCruise Controlº under
Turn Signal/Multifunction Lever on page 3-9.
Q. Horn. See
Horn on page 3-7.
R. Heated Seat Controls. See
Heated Seats on
page 1-3.
S. Traction Control System (TCS) Button. See
Traction
Control System (TCS) on page 4-9.
T. Console Shift Lever. See
Automatic Transaxle
Operation on page 2-28.
U. Optional Ashtray. See
Ashtrays and Cigarette
Lighter on page 3-27.
V. Climate Controls. See
Dual Climate Control System
on page 3-28.
W. Glove Box. See
Glove Box on page 2-48.
3-5

Audio System(s)
Notice:Before you add any sound equipment to
your vehicle ± like a tape player, CB radio, mobile
telephone or two-way radio ± be sure you can
add what you want. If you can, it's very important to
do it properly. Added sound equipment may
interfere with the operation of your vehicle's engine,
radio or other systems, and even damage them.
Your vehicle's systems may interfere with the
operation of sound equipment that has been added
improperly.
So, before adding sound equipment, check with
your dealer and be sure to check federal rules
covering mobile radio and telephone units.
Your audio system has been designed to operate easily
and to give years of listening pleasure. You will get
the most enjoyment out of it if you acquaint yourself with
it ®rst. Figure out which radio you have in your vehicle,
®nd out what your audio system can do and how to
operate all of its controls to be sure you're getting the
most out of the advanced engineering that went into it.
Your vehicle has a feature called Retained Accessory
Power (RAP). With RAP, you can play your audio
system even after the ignition is turned off. See
ªRetained Accessory Power (RAP)º under
Ignition
Positions on page 2-24.
Setting the Time for Radios without
Radio Data Systems (RDS)
Press and hold HR until the correct hour appears on the
display. Press and hold MN until the correct minute
appears on the display. Display the time with the ignition
off by pressing one of these buttons.
Setting the Time for Radios with
Radio Data Systems (RDS)
Press and hold HR until the correct hour appears on the
display. Press and hold MN until the correct minute
appears on the display. Display the time when the
ignition is off by pressing one of these buttons.
To synchronize the time with an FM station broadcasting
Radio Data System (RDS) information, press and
hold HR and MN at the same time until TIME UPDATED
appears on the display. If the time is not available
from the station, NO STATION TIME will appear on the
display.
3-78

Radio with Cassette and CD
(Base Level)
XMŸ Radio Satellite Service
(USA Only)
XMŸ is a continental U.S. based satellite radio service
that offers 100 coast to coast channels including
music, news, sports, talk and children's programming.
XMŸ provides digital quality audio and text information,
including song title and artist name. A service fee is
required in order to receive the XMŸ service. For more
information, contact XMŸ at www.xmradio.com or
call 1-800-852-XMXM (9696).
Playing the Radio
PWR (Power):Press this knob to turn the system on
and off.
VOL (Volume):Turn this knob to increase or to
decrease volume.
HR (Hour) or MN (Minute):Display the time with the
ignition off by pressing one of these buttons.
SOURCE:Press this button to select a source, either
cassette or compact disc. The audio source must
be loaded to play. Available loaded sources are shown
on the display. If a source is being used, it will be
underlined on the display. If none of the audio sources
are loaded, NO SOURCE LOADED will appear on
the display. Press this button again or press BAND to
switch back to the radio.
3-79

XMŸ Radio Messages
Radio Display
Message Condition Action Required
XL (Explicit Language
Channels)XL on the radio display,
after the channel name,
indicates content with
explicit language.These channels, or any others, can be blocked at a
customer's request, by calling 1-800-852-XMXM (9696).
XM Updating Updating encryption
codeThe encryption code in your receiver is being updated, and
no action is required. This process should take no longer
than 30 seconds.
No XM signal Loss of signal Your system is functioning correctly, but you are in a
location that is blocking the XM signal. When you move
into an open area, the signal should return.
Loading XM Acquiring channel audio
(after 4 second delay)Your radio system is acquiring and processing audio and
text data. No action is needed. This message should
disappear shortly.
Channel Off Air Channel not in service This channel is not currently in service. Tune in to another
channel.
Channel Unavail Channel no longer
availableThis previously assigned channel is no longer assigned.
Tune to another station. If this station was one of your
presets, you may need to choose another station for that
preset button.
No Artist Info Artist Name/Feature not
availableNo artist information is available at this time on this
channel. Your system is working properly.
No Title Info Song/Program Title not
availableNo song title information is available at this time on this
channel. Your system is working properly.
3-82