2005 CADILLAC STS climate control

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-7
Safety Belts
.............................................. 1-8
Child Restraints
.......................................1-26
Airbag System
.........................................1-45
Restraint System Check
............................1-56
Features and Controls..................................... 2-1
Keys
........................................................ 2-2
Doors and Locks
......................................2-11
Windows
.................................................2-16
Theft-Deterrent Systems
............................2-19
Starting and Operating Your Vehicle
...........2-22
Mirrors
....................................................2-35
OnStar
®System
......................................2-39
HomeLink®Wireless Control System
...........2-41
Storage Areas
.........................................2-45
Sunroof
..................................................2-46
Vehicle Personalization
.............................2-47
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-50
Warning Lights, Gages, and Indicators
........3-60
Driver Information Center (DIC)
..................3-73
Audio System(s)
.......................................3-92Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-35
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
All-Wheel Drive
........................................5-42
Rear Axle
...............................................5-44
Front Axle
...............................................5-45
Headlamp Aiming
.....................................5-46
Bulb Replacement
....................................5-48
Windshield Replacement
...........................5-51
Windshield Wiper Blade Replacement
.........5-51
Tires
......................................................5-53
Appearance Care
.....................................5-85
Vehicle Identication
.................................5-94
Electrical System
......................................5-95
Capacities and Specications
...................5-106
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-10
Index................................................................ 1
2005 Cadillac STS Owner ManualM

Vehicle Damage Warnings
Also, in this manual you will nd these notices:
Notice:These mean there is something that could
damage your vehicle.
A notice tells about something that can damage the
vehicle. Many times, this damage would not be covered
by your vehicle’s warranty, and it could be costly. But
the notice will tell 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.
There are also warning labels on the vehicle. They use
the same words, CAUTION or NOTICE.
Vehicle Symbols
The vehicle has components and labels that use
symbols instead of text. Symbols are shown along with
the text describing the operation or information
relating to a specic component, control, message,
gage, or indicator.
If you need help guring out a specic 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

Power Lumbar
The driver’s and
passenger’s seatback
lumbar support switches
are located on the
outboard sides of
the seats.
Use the power seat controls rst to get the proper
position, then continue with the lumbar adjustment.
Use the top lumbar switch to adjust support to the
middle seatback and the bottom lumbar switch to adjust
support to the lower seatback. Press the front of the
switch to increase support and the rear of the switch
to decrease support.
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
Your vehicle may have
heated front seats. The
buttons are located on the
climate control panel.
z(Heated Seat and Seatback):This button is for the
heated seat and seatback. Press the up arrow once
to turn on the heated seat at the highest setting. Press
the down arrow once to turn on the heated seat at
the lowest setting.
Pressing the up or down arrows a second time will raise
or lower the setting. To turn off the heated seat keep
pressing the down arrow until the indicator for heated
seat on the climate control display is off.
The heated seat will automatically shut off when the
vehicle is turned off.
1-3

Heated and Ventilated Seats
Your vehicle may have
heated and ventilated front
seats. The buttons are
located on the climate
control panel.
z(Heated Seat and Seatback):This button is for the
heated seat and seatback.
{(Ventilated Seat):This button is for the
ventilated seat.
There are three settings for each feature. A light bar in
the climate control display shows the setting; high,
medium or low. The longest bar shows the high range
and the shortest bar shows the low range.
Pressing either the heated seat or ventilated seat
button will start that feature at the highest setting. Each
time you press the button, the feature will decrease
one setting.
To turn the feature off, keep pressing the button until
the display lights turn off.
The heated or ventilated seats will automatically shut off
when the vehicle is turned off.
1-4

You can also program the remote vehicle start system
to start up the vehicle’s automatic climate control
system. If this feature is turned on, the system monitors
the outside temperature and turns on the rear window
defogger, front window defogger, and heated or
ventilated seats, if equipped. See “Personal Settings
Menu” underVehicle Personalization on page 2-47.
Laws in some local communities may restrict the use of
remote starters, for example, requiring a person
using remote start to have the vehicle in view when
doing so. Check local regulations for any requirements
on remote starting of vehicles.
Do not use the remote start feature if your vehicle is low
on fuel. Your vehicle may run out of fuel.
The remote start feature provides two separate starts,
each with 10 minutes of engine running. If you press the
remote start button on the keyless access transmitter
again before the rst 10 minutes of engine running time
has expired, 10 minutes is added to the remaining
minutes. For example, if the remote start button
is pressed again after ve minutes of the engine run
time, 10 minutes is added and you now have 15 minutes
with the engine running. Once two remote starts or
20 minutes of the engine running have been provided,
the vehicle must be started using the keyless access
with pushbutton start feature, if the engine needs to be
restarted. SeeStarting the Engine on page 2-24for
more information regarding the keyless ignition.The remote start feature will not operate if any of the
following occur:
The check engine light is displayed.
The valet lockout switch is on.
The keyless access transmitter is in the vehicle.
The vehicle’s hood is open.
The vehicle personalization feature is not enabled.
An unauthorized vehicle entry or a vehicle theft
was attempted.
Your keyless access transmitter, with the remote start
button, provides an increased range of operation.
However, the range may be less while the vehicle is
running. As a result, you may need to be closer to your
vehicle to turn it off than you were to turn it on.
There are other conditions which can affect the
performance of the transmitter, seeKeyless Access
System on page 2-3.
2-10

Trunk
{CAUTION:
It can be dangerous to drive with the trunk lid
open because carbon monoxide (CO) gas can
come into your vehicle. You cannot see or
smell CO. It can cause unconsciousness and
even death. If you must drive with the trunk lid
open or if electrical wiring or other cable
connections must pass through the seal
between the body and the trunk lid:
Make sure all other windows are shut.
Turn the fan on your heating or cooling
system to its highest speed and select the
control setting that will force outside air
into your vehicle. See Climate Control
System in the Index.
If you have air outlets on or under the
instrument panel, open them all the way.
SeeEngine Exhaust on page 2-33.
Trunk Lid Release
There are several ways to release the trunk lid.
V(Trunk Lid Release):Press this button
located on the driver’s door. The vehicle must be in
PARK (P) or NEUTRAL (N) and the valet mode
turned off. To disable valet mode, seeValet Lockout
Switch on page 2-21.
Press the trunk lid release button on the keyless
access transmitter. SeeKeyless Access System
Operation on page 2-4. The vehicle must be
in PARK (P) or NEUTRAL (N) and the valet mode
turned off.
2-14

Running the Engine While Parked
It is better not to park with the engine running. But if you
ever have to, here are some things to know.
{CAUTION:
Idling the engine with the climate control
system off could allow dangerous exhaust into
your vehicle. See the earlier caution under
Engine Exhaust on page 2-33.
Also, idling in a closed-in place can let deadly
carbon monoxide (CO) into your vehicle even if
the climate control fan is at the highest setting.
One place this can happen is a garage.
Exhaust — with CO — can come in easily.
NEVER park in a garage with the engine
running.
Another closed-in place can be a blizzard.
SeeWinter Driving on page 4-25.
{CAUTION:
It can be dangerous to get out of your vehicle
if the shift lever is not fully in PARK (P) with
the parking brake rmly set. Your vehicle can
roll. Do not leave your vehicle when the engine
is running unless you have to. If you have left
the engine running, the vehicle can move
suddenly. You or others could be injured. To
be sure your vehicle will not move, even when
you are on fairly level ground, always set your
parking brake after you move the shift lever to
PARK (P).
Follow the proper steps to be sure your vehicle will
not move. SeeShifting Into Park (P) on page 2-30.
If you are parking on a hill and if you are pulling a trailer,
also seeTowing a Trailer on page 4-37.
2-34

The preferred mirror positions can be stored with the
memory option. SeeMemory Seat, Mirrors and Steering
Wheel on page 2-65.
The mirrors can be manually folded inward to prevent
damage when going through car washes or conned
spaces. 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
position before driving.
When the rear window defogger is turned on, both
outside rear view mirrors are heated to help clear them
of ice, snow, or condensation. See “Rear Window
Defogger” underDual Climate Control System on
page 3-50.
Outside Automatic Dimming Mirror
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. SeeAutomatic Dimming Rearview Mirror
with OnStar
®on page 2-35.
Outside Convex Mirror
{CAUTION:
A convex mirror can make things (like other
vehicles) look farther away than they really are.
If you cut too sharply into the right lane, you
could hit a vehicle on your right. Check your
inside mirror or glance over your shoulder
before changing lanes.
The passenger’s side mirror is convex. A convex
mirror’s surface is curved so more can be seen from the
driver’s seat. This mirror does not have a dimming
feature.
Outside Parallel Park Assist Mirror
This feature assists the driver by improving rear obstacle
detection and is useful in viewing the curb when
parallel parking.
Press the left or right mirror symbol on the selector
control to choose the driver or passenger outside mirror.
When the vehicle is shifted into REVERSE (R), the
selected mirror will tilt to a factory programmed position.
2-38