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2004 Cadillac CTS Owners Manual
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Seats and Restraint Systems ........................... 1-1
Front Seats ............................................... 1-2
Rear Seats ............................................... 1-7
Safety Belts .............................................. 1-9
Child Restraints ....................................... 1-29
Air Bag Systems ...................................... 1-48
Restraint System Check ............................ 1-59
Features and Controls ..................................... 2-1
Keys ........................................................ 2-3
Doors and Locks ....................................... 2-8
Windows ................................................. 2-14
Theft-Deterrent Systems ............................ 2-18
Starting and Operating Your Vehicle ........... 2-21
Mirrors .................................................... 2-40
OnStar
®
System ...................................... 2-45
HomeLink
®
Transmitter ............................. 2-47
Storage Areas ......................................... 2-52
Sunroof .................................................. 2-54
Vehicle Personalization ............................. 2-55
Instrument Panel ............................................. 3-1
Instrument Panel Overview .......................... 3-4
Climate Controls ...................................... 3-26
Warning Lights, Gages and Indicators ......... 3-34
Driver Information Center (DIC) .................. 3-50
Audio System(s) ..................................... 3-100
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
Rear Axle ............................................... 5-51
Bulb Replacement .................................... 5-52
Windshield Wiper Blade Replacement ......... 5-56
Tires ...................................................... 5-58
Appearance Care ..................................... 5-86
Vehicle Identification ................................. 5-93
Electrical System ...................................... 5-93
Capacities and Specifications ................... 5-106
Maintenance Schedule ..................................... 6-1
Maintenance Schedule ................................ 6-2
Customer Assistance Information .................... 7-1
Customer Assistance Information .................. 7-2
Reporting Safety Defects ........................... 7-11
Index .................................................................1
2004 Cadillac CTS Owner Manual M

GENERAL MOTORS, GM, the GM Emblem,
CADILLAC, the CADILLAC Crest & Wreath are
registered trademarks and the name CTS is a trademark
of General Motors Corporation.
This manual includes the latest information at the time it
was printed. We reserve the right to make changes
after that time without further notice. For vehicles first
sold in Canada, substitute the name “General Motors of
Canada Limited” for Cadillac Motor Car Division
whenever it appears in this manual.
Please keep this manual in your vehicle, so it will be
there if you ever need it when you’re on the road. If you
sell the vehicle, please leave this manual in it so the
new owner can use it.
Litho in U.S.A.
Part No. 25758901 A First Edition
©
Copyright General Motors Corporation 06/04/03
All Rights Reserved
Canadian Owners
You can obtain a French copy of this manual from your
dealer or from:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
How to Use This Manual
Many people read their owner’s manual from beginning to
end when they first receive their new vehicle. If you do
this, it will help you learn about the features and controls
for your vehicle. In this manual, you will find that pictures
and words work together to explain things.
Index
A good place to look for what you need is the Index in
back of the manual. It is an alphabetical list of what
is in the manual, and the page number where you will
find it.
ii

Safety Warnings and Symbols
You will find a number of safety cautions in this book.
We use a box and the word CAUTION to tell you about
things that could hurt you if you were to ignore the
warning.
{CAUTION:
These mean there is something that could hurt
you or other people.
In the caution area, we tell you what the hazard is.
Then we tell you what to do to help avoid or reduce
the hazard. Please read these cautions. If you don’t,
you or others could be hurt.
You will also find a circle
with a slash through it in
this book. This safety
symbol means “Don’t,”
“Don’t do this” or “Don’t let
this happen.”
iii

Vehicle Damage Warnings
Also, in this book you will find 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 specific component, control,
message, gage or indicator.
If you need help figuring out a specific 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

These are some examples of vehicle symbols you may find on your vehicle:
v

✍ NOTES
vi

Front Seats ......................................................1-2
Manual Passenger Seat ..................................1-2
Power Seats ..................................................1-2
Power Lumbar ...............................................1-3
Heated Seats .................................................1-3
Reclining Seatbacks ........................................1-4
Head Restraints .............................................1-6
Rear Seats .......................................................1-7
Split Folding Rear Seat ...................................1-7
Safety Belts .....................................................1-9
Safety Belts: They Are for Everyone .................1-9
Questions and Answers About Safety Belts .........1-13
How to Wear Safety Belts Properly .................1-14
Driver Position ..............................................1-15
Safety Belt Use During Pregnancy ..................1-21
Right Front Passenger Position .......................1-22
Rear Seat Passengers ..................................1-22
Rear Safety Belt Comfort Guides for
Children and Small Adults ..........................1-26
Safety Belt Pretensioners ...............................1-28
Safety Belt Extender .....................................1-28
Child Restraints .............................................1-29
Older Children ..............................................1-29
Infants and Young Children ............................1-32
Child Restraint Systems .................................1-35
Where to Put the Restraint .............................1-38
Top Strap ....................................................1-39
Top Strap Anchor Location .............................1-40
Lower Anchorages and Top Tethers for
Children (LATCH System) ...........................1-41
Securing a Child Restraint Designed
for the LATCH System ...............................1-43
Securing a Child Restraint in a
Rear Seat Position ....................................1-44
Securing a Child Restraint in the Right
Front Seat Position ....................................1-46
Air Bag Systems ............................................1-48
Where Are the Air Bags? ...............................1-50
When Should an Air Bag Inflate? ....................1-54
What Makes an Air Bag Inflate? .....................1-55
How Does an Air Bag Restrain? .....................1-55
What Will You See After an
Air Bag Inflates? .......................................1-56
Servicing Your Air Bag-Equipped Vehicle .........1-58
Adding Equipment to Your Air Bag-Equipped
Vehicle ....................................................1-59
Restraint System Check ..................................1-59
Checking Your Restraint Systems ...................1-59
Replacing Restraint System Parts
After a Crash ............................................1-60
Section 1 Seats and Restraint Systems
1-1

Front Seats
Manual Passenger Seat
Your vehicle may have a manual passenger seat.
To adjust the seat, lift the bar under the front of the
seat to unlock it. Slide the seat to where you want it
and release the bar. Try to move the seat back and forth
with your body to be sure the seat is locked in place.
Power Seats
If your vehicle is equipped with power front seats, the
controls are located on the outboard sides of the front
seat cushions.
• Move the front of the horizontal control up or down to
adjust the front portion of the cushion.
• Move the rear of the horizontal control up or down to
adjust the rear portion of the cushion.
• Lift up or push down on the center of the horizontal
control to move the entire seat up or down.
• To move the seat forward or rearward, slide the
horizontal control forward or rearward.
1-2

Power Lumbar
Your vehicle may have this feature. The driver’s and
passenger’s seatback lumbar support can be adjusted
by moving a control located on the outboard side of
the seat cushions.
To increase or decrease support, hold the control
forward or rearward. Keep in mind that as your seating
position changes, as it may during long trips, so
should the position of your lumbar support. Adjust the
seat as needed.
Heated Seats
If your vehicle is equipped
with heated front seats, the
buttons are located on
the climate control panel.
There is a button for the driver and one for the front
passenger. Each button has the following three settings:
LO, HI and off. The active setting appears on the
climate control panel display. The LO setting warms the
seatback and cushion until the seat approximates
normal body temperature. The HI setting has a slightly
higher temperature.
To turn on the heated seats, press the button once.
The seat will heat to the HI setting. Press the button
again to switch to the LO setting. Pressing the button a
third time turns the system off.
The heated seats can only be used when the ignition is
turned on. When the vehicle is turned off, the heated
seats automatically turn off. If you wish to have the
heated seats on once the vehicle is restarted, press the
button again.
1-3

Reclining Seatbacks
If your vehicle has manual reclining front seatbacks,
the levers are located on the outboard sides of the
front seats.
Lift the lever to release the seatback, then move the
seatback to where you want it. Release the lever to lock
the seatback in place. To return the seatback to the
upright position, pull up on the lever without pushing
on the seatback.
If your vehicle has power reclining front seatbacks,
the controls are located on the outboard sides of
the front seats.
Press the top of the vertical control forward or rearward
to adjust the seatback angle.
Manual Recliner
Power Recliner
1-4
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$24.99
Gain immediate access to this comprehensive manual, available in .PDF format, which is a digital version of the original factory manual. It encompasses all the essential information found in the traditional physical manual, including but not limited to:
- Introduction
- Instrument Cluster
- Entertainment Systems
- Climate Controls
- Lights
- Driver Controls
- Locks and Security
- Seating and Safety Restraints
- Driving
- Customer Assistance
- Reporting safety defects (U.S. only)
- Cleaning
- Maintenance and Specifications
- Engine Compartment
- Engine Oil
- Battery
- Fuel Information
- Air Filter(s)
- Part Numbers
- Refill Capacities
- Lubricant Specifications
- Accessories
To access the manual, a compatible reader such as Acrobat Reader, Foxit, or a similar application is required. Please note that all designated trademarks and brands mentioned are the property of their respective owners.