2009 CADILLAC STS fuel

Seats and Restraint System............................. 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-6
Safety Belts
.............................................. 1-7
Child Restraints
.......................................1-28
Airbag System
.........................................1-51
Restraint System Check
............................1-66
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
......................................2-13
Windows
.................................................2-18
Theft-Deterrent Systems
............................2-21
Starting and Operating Your Vehicle
...........2-25
Mirrors
....................................................2-38
Object Detection Systems
..........................2-42
OnStar
®System
......................................2-50
Universal Home Remote System
................2-53
Storage Areas
.........................................2-60
Sunroof
..................................................2-60
Vehicle Personalization
.............................2-61Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-48
Warning Lights, Gages, and Indicators
........3-55
Driver Information Center (DIC)
..................3-72
Audio System(s)
.......................................3-97
Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and the Vehicle
....... 4-2
Towing
...................................................4-29
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under
the Hood
.............................................5-10
All-Wheel Drive
........................................5-47
Rear Axle
...............................................5-48
Front Axle
...............................................5-49
Headlamp Aiming
.....................................5-50
Bulb Replacement
....................................5-51
Windshield Replacement
...........................5-52
2009 Cadillac STS/STS-V Owner ManualM

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 2-27for 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 3-66.
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.
If your vehicle has the remote start feature, the keyless
access transmitter functions will have an increased
range of operation. However, the range may be
less while the vehicle is running.
There are other conditions which can affect the
performance of the transmitter, seeKeyless Access
System on page 2-4.
2-12

Stopping the Engine
Move the shift lever to P (Park) and press the
Acc. button located on the instrument panel. If the
shifter is not in P (Park), the engine shuts off and the
vehicle goes into the Accessory Mode. The DIC
displays SHIFT TO PARK. Once the shifter is moved
to P (Park), the vehicle turns off.
The DIC displays NO FOB, OFF OR RUN?, if the
keyless access transmitter is not detected inside the
vehicle when it is turned off.
SeeDIC Warnings and Messages on page 3-79for
more information.
Engine Coolant Heater
The engine coolant heater can provide easier starting
and better fuel economy during engine warm-up in cold
weather conditions at or below 0°F (−18°C). Vehicles with
an engine coolant heater should be plugged in at least
four hours before starting. Some models have an internal
thermostat in the cord which will prevent engine coolant
heater operation at temperatures above 0°F (−18°C).
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 and 4.4L V8 engine, the cord is
located in the front of the engine compartment,
on the passenger side of the vehicle.
For the 4.6L V8 engine, the cord is located in the
engine compartment on the driver side of the vehicle
near the inner fender and above the strut.
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.
2-29

If you cannot shift out of P (Park), ease pressure on
the shift lever and push the shift lever all the way into
P (Park) as you maintain brake application. Then press
the shift lever button and move the shift lever into another
gear. SeeShifting Out of Park on page 2-35.
Notice:Shifting to R (Reverse) while the vehicle is
moving forward could damage the transmission.
The repairs would not be covered by the vehicle
warranty. Shift to R (Reverse) only after the vehicle
is stopped.
R (Reverse):Use this gear to back up.
At low vehicle speeds, you can also use R (Reverse)
to rock your vehicle back and forth to get out of
snow, ice, or sand without damaging the transmission.
SeeIf Your Vehicle is Stuck in Sand, Mud, Ice, or
Snow on page 4-23for additional information.
N (Neutral):In this position, the engine does not
connect with the wheels. To restart the engine when
the vehicle is already moving, use N (Neutral) only.
You can also use N (Neutral) when the vehicle is
being towed.
{CAUTION:
Shifting into a drive gear while the engine is
running at high speed is dangerous. Unless your
foot is rmly on the brake pedal, the vehicle could
move very rapidly. You could lose control and hit
people or objects. Do not shift into a drive gear
while the engine is running at high speed.
Notice:Shifting out of P (Park) or N (Neutral) with
the engine running at high speed may damage the
transmission. The repairs would not be covered
by the vehicle warranty. Be sure the engine is not
running at high speed when shifting the vehicle.
D (Drive):This position is for normal driving. It provides
the best fuel economy. 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.
Downshifting the transmission in slippery road conditions
could result in skidding, see “Skidding” underLoss of
Control on page 4-15.
2-31

Antilock Brake System (ABS)
Warning Light...........................................3-63
Traction Control System (TCS)
Warning Light...........................................3-63
Lane Departure Warning Light........................3-64
Engine Coolant Temperature
Warning Light...........................................3-64
Engine Coolant Temperature Gage..................3-65
Tire Pressure Light.......................................3-65
Malfunction Indicator Lamp.............................3-66
Oil Pressure Light.........................................3-69
Security Light...............................................3-69
Fog Lamp Light............................................3-70
Lights On Reminder......................................3-70
Cruise Control Light......................................3-70
Highbeam On Light.......................................3-70
Fuel Gage...................................................3-71Driver Information Center (DIC).......................3-72
DIC Operation and Displays...........................3-72
DIC Warnings and Messages.........................3-79
Other Messages...........................................3-96
Audio System(s).............................................3-97
Setting the Clock..........................................3-98
Radio(s)......................................................3-98
Using an MP3............................................3-111
XM Radio Messages...................................3-114
Navigation/Radio System..............................3-116
Bluetooth
®.................................................3-116
Radio Personalization..................................3-126
Theft-Deterrent Feature................................3-130
Audio Steering Wheel Controls......................3-131
Radio Reception.........................................3-133
Backglass Antenna......................................3-134
XM™ Satellite Radio Antenna System............3-134
Section 3 Instrument Panel
3-2

Instrument Panel Cluster
The instrument panel cluster is designed to show how the vehicle is running. It shows how fast the vehicle is going,
how much fuel is being used and many of the other things needed to drive safely and economically.
United States Base version shown, Canada and Uplevel similar
3-56

When the Light Flashes First and Then is
On Steady
This indicates that there could be a problem with the
Tire Pressure Monitor System. The light ashes for about
a minute and stays on steady for the remainder of the
ignition cycle. This sequence repeats with every ignition
cycle. SeeTire Pressure Monitor System on page 5-66
for more information.
Malfunction Indicator Lamp
Check Engine Light
A computer system called OBD II (On-Board
Diagnostics-Second Generation) monitors operation of
the fuel, ignition, and emission control systems. It makes
sure that emissions are at acceptable levels for the life of
the vehicle, helping to produce a cleaner environment.
This comes on briey
while starting the engine.
If it does not come on, have
the vehicle serviced by your
dealer/retailer.If the check engine light comes on and stays on, while
the engine is running, this indicates that there is an
OBD II problem and service is required.
Malfunctions often are indicated by the system before
any problem is apparent. Being aware of the light
can prevent more serious damage to the vehicle.
This system assists the service technician in correctly
diagnosing any malfunction.
Notice:If the vehicle is continually driven with this
light on, after a while, the emission controls might
not work as well, the vehicle’s fuel economy might
not be as good, and the engine might not run as
smoothly. This could lead to costly repairs that
might not be covered by the vehicle warranty.
Notice:Modications made to the engine,
transmission, exhaust, intake, or fuel system
of the vehicle or the replacement of the original tires
with other than those of the same Tire Performance
Criteria (TPC) can affect the vehicle’s emission
controls and can cause this light to come on.
Modications to these systems could lead to
costly repairs not covered by the vehicle warranty.
This could also result in a failure to pass a required
Emission Inspection/Maintenance test. See
Accessories and Modifications on page 5-3.
3-66

This light comes on during a malfunction in one of
two ways:
Light Flashing:A misre condition has been detected.
A misre increases vehicle emissions and could damage
the emission control system on the vehicle. Diagnosis
and service might be required.
The following can prevent more serious damage to the
vehicle:
Reduce vehicle speed.
Avoid hard accelerations.
Avoid steep uphill grades.
If the light continues to ash, when it is safe to do so,
stop the vehicle. Find a safe place to park the vehicle.
Turn the key off, wait at least 10 seconds, and restart
the engine. If the light is still ashing, follow the previous
steps and see your dealer/retailer for service as soon
as possible.
Light On Steady:An emission control system
malfunction has been detected on the vehicle.
Diagnosis and service might be required.An emission system malfunction might be corrected by
doing the following:
Make sure the fuel cap is fully installed. 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
allows fuel to evaporate into the atmosphere. A few
driving trips with the cap properly installed should
turn the light off.
If the vehicle has been driven through a deep puddle
of water, the vehicle’s electrical system might be wet.
The condition is usually corrected when the electrical
system dries out. A few driving trips should turn the
light off.
Make sure to fuel the vehicle with quality fuel. Poor
fuel quality causes the engine not to run as efficiently
as designed and may cause: stalling after start-up,
stalling when the vehicle is changed into gear,
misring, hesitation on acceleration, or stumbling on
acceleration. These conditions might go away once
the engine is warmed up.
If one or more of these conditions occurs, change the
fuel brand used. It will require at least one full tank of
the proper fuel to turn the light off.
SeeGasoline Octane on page 5-5.
3-67