fuel CADILLAC STS 2006 1.G Owners Manual

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-7
Safety Belts
.............................................. 1-8
Child Restraints
.......................................1-26
Airbag System
.........................................1-49
Restraint System Check
............................1-64
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
......................................2-12
Windows
.................................................2-17
Theft-Deterrent Systems
............................2-20
Starting and Operating Your Vehicle
...........2-24
Mirrors
....................................................2-41
OnStar
®System
......................................2-45
Universal Home Remote System
................2-47
Storage Areas
.........................................2-51
Sunroof
..................................................2-52
Vehicle Personalization
.............................2-53
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-48
Warning Lights, Gages, and Indicators
........3-57
Driver Information Center (DIC)
..................3-73
Audio System(s)
.......................................3-94Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-37
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
All-Wheel Drive
........................................5-50
Rear Axle
...............................................5-51
Front Axle
...............................................5-52
Bulb Replacement
....................................5-53
Windshield Replacement
...........................5-55
Windshield Wiper Blade Replacement
.........5-55
Tires
......................................................5-56
Appearance Care
.....................................5-94
Vehicle Identication
...............................5-103
Electrical System
....................................5-104
Capacities and Specications
...................5-116
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-13
Index.............................................................. 71
2006 Cadillac STS/STS-V Owner ManualM

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 lock button and then hold the remote start button
on the keyless access transmitter again for at least
three seconds 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 is
initiated 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. See
Starting the Engine on page 2-25for 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. See “Check
Engine Light” underMalfunction Indicator Lamp
on page 3-67.
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 2-4.
2-11

Engine Coolant Heater
Your vehicle may be equipped with an engine coolant
heater.
In very cold weather, 0°F (−18°C) or colder, the engine
coolant heater can help. You will get easier starting
and better fuel economy during engine warm-up.
Usually, the coolant heater should be plugged in a
minimum of four hours prior to starting your vehicle.
At temperatures above 32°F (0°C), use of the coolant
heater is not required. Your vehicle may also have an
internal thermostat in the plug end of the cord. This will
prevent operation of the engine coolant heater when
the temperature is at or above 0°F (−18°C) as noted
on the cord.
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
For the 3.6L V6 engine, the cord is located in
the engine compartment on the passenger’s side of
the vehicle in front of the fuse block.
For the 4.6L V8 engine, the cord is located in the
engine compartment on the driver’s side of the
vehicle near the inner fender and above the strut.
For the 4.4L V8 engine, the cord is located in
the front of the engine compartment, on the
passenger’s side of the vehicle. The plug will be
inside the upper grille cutout.3. You must remove the plastic cap to access
the plug.
4. Plug it into a normal, grounded 110-volt AC outlet.
{CAUTION:
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the
wrong kind of extension cord could overheat
and cause a re. You could be seriously
injured. Plug the cord into a properly grounded
three-prong 110-volt AC outlet. If the cord will
not reach, use a heavy-duty three-prong
extension cord rated for at least 15 amps.
5. Before starting the engine, be sure to unplug and
store the cord as it was before to keep it away from
moving engine parts. If you do not, it could be
damaged.
How long should you keep the coolant heater plugged
in? The answer depends on the outside temperature,
the kind of oil you have, and some other things. Instead
of trying to list everything here, we ask that you contact
your dealer in the area where you will be parking your
vehicle. The dealer can give you the best advice for that
particular area.
2-27

AUTOMATIC OVERDRIVE (D):This position is for
normal driving. If you need more power for passing, and
you are:
Going less than 35 mph (55 km/h), push the
accelerator pedal about halfway down.
Going about 35 mph (55 km/h) or more, push the
accelerator all the way down.
The transmission will shift down to a lower gear
and have more power.
Notice:Spinning the tires or holding the vehicle in
one place on a hill using only the accelerator pedal
may damage the transmission. If you are stuck, do
not spin the tires. When stopping on a hill, use the
brakes to hold the vehicle in place.
FOURTH (4):This position is also used for normal
driving. However, it offers more power and lower fuel
economy than AUTOMATIC OVERDRIVE (D).
Here are examples for using FOURTH (4) instead of
AUTOMATIC OVERDRIVE (D):
When driving on hilly, winding roads.
When going down a steep hill.
This position may also offer improved trailer towing
performance in certain driving conditions.
Driver Shift Control (DSC)
Notice:If you drive your vehicle at high RPMs
without upshifting while using Driver Shift Control
(DSC), you could damage your vehicle. Always
upshift when necessary while using DSC.
Your automatic transmission has a Driver Shift Control
(DSC) feature that allows you to change gears similar to
a manual transmission. To use the DSC feature:
1. Slide the shift lever over from AUTOMATIC
OVERDRIVE (D) to the right into the DSC area.
When the transmission is
in DSC mode the sport
symbol in the Driver
Information Center (DIC)
will come on.
If you do not move the shift lever forward or
rearward, the vehicle will be in sport mode. When
you are in the sport mode the vehicle will still shift
automatically. While driving in sport mode, the
transmission may remain in a gear longer than it
would in normal driving mode based on braking,
throttle input and vehicle lateral acceleration.
2-30

Low Tire Pressure Warning Light....................3-65
Traction Control System (TCS) Warning Light . . .3-66
Engine Coolant Temperature Warning Light......3-66
Engine Coolant Temperature Gage..................3-67
Malfunction Indicator Lamp.............................3-67
Oil Pressure Light.........................................3-70
Security Light...............................................3-71
Fog Lamp Light............................................3-71
Lights On Reminder......................................3-71
Cruise Control Light......................................3-72
Highbeam On Light.......................................3-72
Fuel Gage...................................................3-72
Driver Information Center (DIC).......................3-73
DIC Controls and Displays.............................3-74
DIC Warnings and Messages.........................3-79
Other Messages...........................................3-93Audio System(s).............................................3-94
Setting the Time...........................................3-95
Radio with CD..............................................3-96
Navigation/Radio System..............................3-115
Radio Personalization..................................3-115
Theft-Deterrent Feature................................3-119
Audio Steering Wheel Controls......................3-119
Radio Reception.........................................3-120
Care of Your CDs.......................................3-121
Care of the CD Player.................................3-122
Diversity Antenna System.............................3-122
XM™ Satellite Radio Antenna System............3-122
Section 3 Instrument Panel
3-2

Instrument Panel Cluster
The instrument panel cluster is designed to let you know at a glance how your vehicle is running. You will know how
fast you are going, how much fuel you are using and many of the other things you will need to know to drive safely
and economically.
United States Uplevel version shown, Canada and base similar
3-58

Engine Coolant Temperature Gage
This gage shows the
engine coolant
temperature.
It can be used to see when your engine has warmed up
and to make sure your cooling system is operating
properly. If the gage pointer moves into the shaded area,
the engine coolant is too hot and the engine coolant
temperature warning light will come on. SeeEngine
Overheating on page 5-30for more information.
Malfunction Indicator Lamp
Check Engine Light
Your vehicle has a
computer which monitors
operation of the fuel,
ignition, and emission
control systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for the
life of the vehicle, helping to produce a cleaner
environment. The Check Engine light comes on to
indicate that there is a problem and service is required.
Malfunctions often will be indicated by the system
before any problem is apparent. This may prevent more
serious damage to your vehicle. This system is also
designed to assist your service technician in correctly
diagnosing any malfunction.
Notice:If you keep driving your vehicle with this
light on, after awhile, your emission controls
may not work as well, your fuel economy may not
be as good, and your engine may not run as
smoothly. This could lead to costly repairs that may
not be covered by your warranty.
3-67

Notice:Modications made to the engine,
transmission, exhaust, intake, or fuel system of
your vehicle or the replacement of the original tires
with other than those of the same Tire Performance
Criteria (TPC) can affect your vehicle’s emission
controls and may cause this light to come on.
Modications to these systems could lead to costly
repairs not covered by your warranty. This may
also result in a failure to pass a required Emission
Inspection/Maintenance test. SeeAccessories
and Modifications on page 5-3.
This light should come on briey, as a check to show
you it is working, as you start the engine. If the light
does not come on, have it repaired. This light will also
come on during a malfunction in one of two ways:
Light Flashing— A misre condition has
been detected. A misre increases vehicle
emissions and may damage the emission control
system on your vehicle. Diagnosis and service may
be required.
Light On Steady— An emission control system
malfunction has been detected on your vehicle.
Diagnosis and service may be required.
If the Light Is Flashing
The following may prevent more serious damage to
your vehicle:
Reducing vehicle speed
Avoiding hard accelerations
Avoiding steep uphill grades
If the light stops ashing and remains on steady, see
“If the Light Is On Steady” following.
If the light continues to ash, when it is safe to do so,
stop the vehicle. Find a safe place to park your vehicle.
Turn the engine off, wait at least 10 seconds and
restart the engine. If the light remains on steady, see
“If the Light Is On Steady” following. If the light is
still ashing, follow the previous steps, and see your
dealer for service as soon as possible.
3-68

If the Light Is On Steady
You also may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully install
the cap. SeeFilling the Tank on page 5-8. The
diagnostic system can determine if the fuel cap has
been left off or improperly installed. A loose or missing
fuel cap will allow fuel to evaporate into the atmosphere.
A few driving trips with the cap properly installed
should turn the light off.
Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out. A few driving trips should turn the light off.
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel. See
Gasoline Octane on page 5-5. Poor fuel quality will
cause your engine not to run as efficiently as designed.You may notice this as stalling after start-up, stalling
when you put the vehicle into gear, misring, hesitation
on acceleration, or stumbling on acceleration. (These
conditions may go away once the engine is warmed up.)
This will be detected by the system and cause the
light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least
one full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
your dealer can check the vehicle. Your dealer has
the proper test equipment and diagnostic tools to x any
mechanical or electrical problems that may have
developed.
3-69

Cruise Control Light
This light comes on
whenever you set your
cruise control.
The light will go out when the cruise control is turned
off. SeeCruise Control on page 3-16andAdaptive
Cruise Control on page 3-19for more information.
Highbeam On Light
This light comes on
whenever the high-beam
headlamps are on.
See “Intellibeam™ Intelligent High-Beam Headlamp
Control System” underHeadlamps on page 3-31
andHeadlamp High/Low-Beam Changer on page 3-8
for more information.
Fuel Gage
The fuel gage shows
approximately how much
fuel is in the tank. It
works only when the
engine is on.
If the fuel supply gets low, the Fuel Level Low message
will appear on the DIC and a single chime will sound. See
DIC Warnings and Messages on page 3-79for more
information.
Here are a few concerns some owners have had about
the fuel gage. All of these situations are normal and
do not indicate that anything is wrong with the fuel gage:
At the gas station the gas pump shuts off before
the gage reads full.
The gage may change when you turn, stop quickly
or accelerate quickly.
It takes a little more or less fuel to ll the tank than
the gage indicated. For example, the gage may have
indicated that the tank was half full, but it actually
took a little more or less than half the tank’s capacity
to ll the tank.
3-72