2006 CADILLAC STS hood open

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

Theft-Deterrent System
Your vehicle has a theft-deterrent alarm system.
The security light is
located on the instrument
panel cluster.
If the ignition is off and a door is open, the security
light will ash, reminding you to arm the theft-deterrent
system.
To arm the system, do one of the following:
Press the lock button on the keyless access
transmitter. If the door is closed when the lock button
is pressed, the security light will stay illuminated for
30 seconds. After the security light goes off, the
theft-deterrent system is armed. Pressing the lock
button twice will arm the system immediately.If the vehicle is locked using the keyless access
transmitter and the trunk lid, hood or a door is open
or not closed completely, the security light will ash
for 60 seconds and then turn off. At this time, the
theft-deterrent system is armed but the alarm will
not sound if the trunk lid, hood or door that was not
closed completely is tampered with or opened. The
alarm will sound for the trunk lid, hood or a door that
was completely closed at the time the vehicle was
locked using the keyless access transmitter.
Open the door. Lock the door with the power door
lock switch or lock button on the keyless access
transmitter. The security light should ash. Close the
door. The security light will stop ashing and stay on.
After 30 seconds the light should turn off, the
theft-deterrent system is armed.
Passive Arming, if activated through the vehicle
personalization feature, will arm the system
automatically after you close the door and take at
least one keyless access transmitter with you. The
security light will turn on. After 60 seconds the light
should turn off. The theft-deterrent system is armed.
SeeVehicle Personalization on page 2-53.
2-21

If a door, hood, or the trunk is opened without the
keyless access transmitter, the horn will sound for
30 seconds and the lamps will ash for two minutes.
The vehicle cannot be started without a keyless
access transmitter.
The Theft-Deterrent system will not arm if:
The key is used to turn the key cylinder to the
lock position.
The driver’s door is locked using the power door
lock switch after the doors are closed.
If the vehicle is locked using the keyless access
transmitter and the trunk lid, hood or a door is open
or not closed completely, the security light will ash
for 60 seconds and then turn off. At this time, the
theft-deterrent system is armed but the alarm will not
sound if the trunk lid, hood or door that was not closed
completely is tampered with or opened. The alarm
will sound for the trunk lid, hood or a door that was
completely closed at the time the vehicle was locked
using the keyless access transmitter.The vehicle can be programmed to automatically
unlock the doors and disarm the theft-deterrent system
when you approach the vehicle and the keyless access
transmitter is with you. SeeVehicle Personalization
on page 2-53.
Pressing the unlock button on the keyless access
transmitter or using the key to unlock the driver’s door
disarms the theft-deterrent system. Unlocking a door
any other way while the system is armed will activate
the alarm.
Testing the Alarm
1. From inside the vehicle, roll down the window, then
get out of the vehicle, keeping the door open.
2. From outside of the vehicle, with the door open,
lock the vehicle using the power door lock switch
or the keyless access transmitter and close the
door. Wait approximately 30 seconds until the
security light goes off.
3. Reach in and open the door using the inside door
handle. The horn will sound and the exterior lamps
will ash.
You can turn off the alarm by pressing the unlock button
on the keyless access transmitter or by starting the car.
2-22

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

Windshield Wipers
The lever on the right side of the steering column
operates the windshield wipers.
7(Mist):Pull the lever down and release it for a
single wiping cycle. The lever will return to its original
position. For more cycles, hold the lever down
before releasing it.
9(Off):Put the lever in this position to turn off
the wipers.
&(Delay):Put the lever in this position to set a delay
between wipes. Turn the delay adjustment band to
set the length of the delay.
x(Delay Adjustment):Use this band to set the
length of the delay between wipes when using the delay
feature. The closer you move the band toward mist,
the longer the delay. The windshield wiper lever must be
in delay for this feature to work.
6(Low Speed):Put the lever in this position for
slow, steady wiping cycles.
1(High Speed):Put the lever in this position for
rapid wiping cycles.
If the windshield wipers are in use for about six seconds
while you are driving, the exterior lamps will come on
automatically if the exterior lamp control is in AUTO.
SeeWiper Activated Headlamps on page 3-35for
more information.
Be sure to clear ice and snow from the wiper blades
before using them. If they’re frozen to the windshield,
gently loosen or thaw them. If the blades do become
damaged, install new blades. For more information, see
Windshield Wiper Blade Replacement on page 5-55.
Heavy snow or ice can overload the wiper motor.
A circuit breaker will stop the motor until it cools down.
Clear away snow or ice to prevent an overload.
Your vehicle (STS-V only) is equipped with a feature
that disables the wiper system when the hood is
open and your vehicle is stopped. Opening the hood will
automatically park the wipers if they are not parked.
This prevents the wipers from interfering with hood
operation. Be sure the hood is not opened when you
require the vehicle’s wipers out of the park position,
such as when changing the wiper blades.
3-13

Outlet Adjustment
Use the lever located in the center of each outlet to
change the direction of the airow, either side-to-side or
up and down. Use the thumbwheels to open or close
the outlets to adjust the airow.
Turn the thumbwheel to the right to open the outlets
completely and allow the maximum amount of air
to enter your vehicle. Turn the thumbwheel to the left to
close the outlets and minimize the amount of air
entering the vehicle.
Operation Tips

Clear away any ice, snow or leaves from the air
inlets at the base of the windshield that may
block the ow of air into your vehicle.
Use of non-GM approved hood deectors may
adversely affect the performance of the system.
Keep the path under the front seats clear of objects
to help circulate the air inside of your vehicle more
effectively.
If the airow seems low when the fan speed is at
the highest setting, the passenger compartment
air lter may need to be replaced. For more
information, seePassenger Compartment Air Filter
on page 3-55.
Rear Climate Control System
Your vehicle has a rear climate control system. The
base model includes air outlets in the rear of the center
console for cooling and under-seat air outlets for
heating. The temperature, quantity, and air delivery
location is controlled automatically by the front climate
control system.
Some vehicles are equipped with an optional climate
control panel for the rear passenger, located on the back
of the center console.
The left knob controls the temperature of the air to the
rear passengers. Turning the knob to the left will
make the air cooler. Turning the knob to the right will
make the air warmer.
The right knob controls the air delivery to the rear
passengers. Turning the knob all the way to the left will
shut off airow to the rear passengers. Operating
with the rear air delivery off may make the entire vehicle
warm or cool less quickly. It may also increase the air
rush sound of the front system.
3-54

SERVICE STABILITY SYS (System)
Your vehicle may have a vehicle stability enhancement
system called StabiliTrak®.
SeeStabiliTrak
®System on page 4-11. The SERVICE
STABILITY SYS message will display if there has
been a problem detected with StabiliTrak
®.
If the SERVICE STABILITY SYS message comes on
while you are driving, pull off the road as soon as
possible and stop carefully. Try resetting the system by
turning the ignition off then back on. If the SERVICE
STABILITY SYS message still stays on or comes back
on again while you are driving, your vehicle needs
service. Have the StabiliTrak
®System inspected by your
GM dealer as soon as possible.
SERVICE STEERING SYS (System)
Your vehicle may have a speed variable assist steering
system. SeeSteering on page 4-12.
The SERVICE STEERING SYS message will display if
a problem is detected with the speed variable assist
steering system. When this message is displayed, you
may notice that the effort required to steer the vehicle
increases or feels “heavier,” but you will still be able to
steer the vehicle.
SERVICE SUSPENSION SYS (System)
This message will display when the suspension
system is not operating properly. Have your vehicle
serviced by your GM dealer.
SERVICE TIRE MONITOR
If your vehicle has a Tire Pressure Monitor (TPM)
system, this message will display if the TPM system is
not working properly. Have your vehicle serviced by
your GM dealer as soon as possible.
SERVICE THEFT SYSTEM
This message will display when there is a problem with
the hood open and closed switches. The switches may
need to be replaced. When this message is displayed,
the theft-deterrent system will still be protecting the
interior of the vehicle, however, the hood area will not be
protected at this time. Also, the remote start function will
not work when this message appears. See your
GM dealer for service.
SERVICE TRANSMISSION
This message will display when there is a problem with
the transmission of your vehicle. Have your vehicle
serviced by your GM dealer.
3-89

If your vehicle has the 4.4L V8 engine (VIN Code D), use
premium unleaded gasoline with a posted octane rating
of 91 or higher. For best performance, use premium
unleaded gasoline with a posted octane rating of 93. In
an emergency, you can use regular unleaded gasoline
with an octane rating of 87 or higher. If 87 octane fuel is
used, do not perform any aggressive driving maneuvers
such as wide open throttle applications. You may also
hear audible spark knock during acceleration. Rell your
tank with premium fuel as soon as possible to avoid
damaging your engine. If you are using gasoline rated at
91 octane or higher and you hear heavy knocking, your
engine needs service.
Gasoline Specications
At a minimum, gasoline should meet ASTM
specication D 4814 in the United States or
CAN/CGSB-3.5 in Canada. Some gasolines may
contain an octane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl (MMT).
General Motors recommends against the use of
gasolines containing MMT. SeeAdditives on page 5-6
for additional information.
California Fuel
If your vehicle is certied to meet California Emissions
Standards, it is designed to operate on fuels that meet
California specications. See the underhood emission
control label. If this fuel is not available in states adopting
California emissions standards, your vehicle will operate
satisfactorily on fuels meeting federal specications, but
emission control system performance may be affected.
The malfunction indicator lamp may turn on and your
vehicle may fail a smog-check test. SeeMalfunction
Indicator Lamp on page 3-67. If this occurs, return to your
authorized GM dealer for diagnosis. If it is determined
that the condition is caused by the type of fuel used,
repairs may not be covered by your warranty.
Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that will help
prevent engine and fuel system deposits from forming,
allowing your emission control system to work properly. In
most cases, you should not have to add anything to your
fuel. However, some gasolines contain only the minimum
amount of additive required to meet U.S. Environmental
Protection Agency regulations.
5-6