2005 CADILLAC STS engine

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

Power Windows
The power window switches are located on the armrest
near each window. Press the front of the switch to
the rst position to open the window to the desired level.
Lift up the front of the switch to the rst position to
close the window.
Your vehicle has Retained Accessory Power (RAP) that
allows you to use the power windows once the engine
has been turned off. For more information, seeRetained
Accessory Power (RAP) on page 2-23.
Express-Down Window
This feature is on all windows. It allows you to lower
the window all the way without continuously pressing
the switch.Press the front of the switch to the second position
and release. If you want to stop the window as it
is lowering, briey pull up the switch.
Express-Up Window
This feature is on all windows. It allows you to raise
the window all the way without continuously lifting the
switch. Lift the front of the switch briey to activate
the express-up feature. If you want to stop the window
as it is raising, briey press the switch.
Programming the Power Windows
If the battery on your vehicle has been recharged,
disconnected, or is not working, you will need to
reprogram each window for the express-up feature
to work.
To program each window, follow these steps:
1. With the ignition on or in ACC, or while RAP is
active, close all doors.
2. Press and hold the power window switch until the
window has fully opened.
3. Continue holding the switch for approximately
two seconds.
4. Pull up the power window switch until the window
is fully closed.
The window is now programmed. Repeat the process
for all windows.
2-17

Starting and Operating Your
Vehicle
New Vehicle Break-In
Notice:Your vehicle does not need an elaborate
break-in. But it will perform better in the long run if
you follow these guidelines:
Do not drive at any one speed, fast or slow, for
the rst 500 miles (805 km). Do not make
full-throttle starts.
Avoid making hard stops for the rst 200 miles
(322 km) or so. During this time your new
brake linings are not yet broken in. Hard stops
with new linings can mean premature wear
and earlier replacement. Follow this breaking-in
guideline every time you get new brake
linings.
Do not tow a trailer during break-in. SeeTowing
a Trailer on page 4-37for more information.
Ignition Positions
Your vehicle has an
electronic keyless ignition
with pushbutton start.
/(START):Press this button while your foot is on
the brake to start the engine. The shifter must be
in PARK (P) or NEUTRAL (N) to start the engine and
the keyless access transmitter must be in the vehicle for
the ignition to work.
2-22

9ACC (OFF/ACCESSORY):When the engine is on
or in accessory mode, press this button to turn the
engine off and place the vehicle in RAP. SeeRetained
Accessory Power (RAP) on page 2-23for more
information. The shifter must be in PARK (P) for the
engine to turn off.
When the engine is off, press this button to place the
vehicle in accessory mode. ACCESSORY ACTIVE will
display on the Driver Information Center (DIC). This mode
allows you to use things like the radio and the windshield
wipers while the engine is off. Use accessory mode if you
must have your vehicle in motion while the engine is off,
for example, if your vehicle is being pushed or towed. If
the door is open while in accessory mode, the key in
reminder chime will sound continuously.
If the push-button start is not working, your vehicle may
be near a strong radio antenna signal causing the keyless
access system to be jammed. SeeDIC Warnings and
Messages on page 3-78for more information.Retained Accessory Power (RAP)
The following accessories on your vehicle may be used
for up to 20 minutes after the engine is turned off:
Radio
Power Windows
Audio Steering Wheel Controls
Power to these accessories stops after 20 minutes or if
one of the front doors is opened. If you want power
for another 20 minutes, close all the doors and press the
OFF/ACCESSORY button to place the vehicle in
accessory mode. Press the button again and the vehicle
will return to RAP.
2-23

Starting the Engine
Move your shift lever to PARK (P) or NEUTRAL (N).
Your engine will not start in any other position — that is
a safety feature. To restart when you are already
moving, use NEUTRAL (N) only.
The keyless access transmitter must be in the vehicle
for the ignition to work.
Notice:Do not try to shift to PARK (P) if your
vehicle is moving. If you do, you could damage the
transmission. Shift to PARK (P) only when your
vehicle is stopped.
1. With your foot on the brake pedal, press the
START button. If no keyless access transmitter
is present, the DIC will display NO FOB
DETECTED. When the engine begins cranking, let
go of the button. The idle speed will go down as
your engine gets warm.
If the battery in the keyless access transmitter is
weak, the DIC will display FOB BATTERY
LOW. You can still drive the vehicle. See “Battery
Replacement” underKeyless Access System
Operation on page 2-4for more information.Notice:Holding the button in for longer than
15 seconds at a time will cause the vehicle’s battery
to be drained much sooner. This can also cause
damage to the starter motor. Wait 15 seconds
between each try to avoid draining your vehicle’s
battery or damaging the starter.
2. If the engine does not start and no DIC message is
displayed, wait 15 seconds before trying again.
Notice:Your engine is designed to work with the
electronics in your vehicle. If you add electrical
parts or accessories, you could change the way the
engine operates. Before adding electrical equipment,
check with your dealer. If you do not, your engine
might not perform properly.
Stopping Your Engine
Move the shift lever to PARK (P) and press the
OFF/ACCESSORY button. If the shifter is not in
PARK (P), the vehicle will go into accessory mode
and the DIC will display SHIFT TO PARK. Once the
shifter is moved to PARK (P), the vehicle will turn off.
If the keyless access transmitter is not detected
while going to off, the DIC will display NO FOB – OFF
OR RUN?.
SeeDIC Warnings and Messages on page 3-78for
more information.
2-24

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.
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The cord is located in the engine compartment
on the driver’s side of the vehicle near the engine
oil dipstick. SeeEngine Compartment Overview
on page 5-12for more information on location.
You must remove the plastic cap to access the plug.
3. 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.
4. 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.
2-25

Automatic Transmission Operation
The shift lever is located on the center console between
the front seats.
There are several different
positions for the shift lever.
PARK (P):This position locks the rear wheels.
It is the best position to use when you start the
engine because your vehicle cannot move easily.{CAUTION:
It is 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 and move the shift lever to
PARK (P). SeeShifting Into Park (P) on
page 2-30. If you are pulling a trailer, see
Towing a Trailer on page 4-37.
2-26

Ensure the shift lever is fully in PARK (P) before starting
the engine. Your vehicle has an automatic transmission
shift lock control system. You must fully apply your
regular brakes before you can shift from PARK (P) when
the ignition is on. If you cannot shift out of PARK (P),
ease pressure on the shift lever. Push the shift lever all
the way into PARK (P) while pressing the button on
the shift lever as you maintain brake application. Then
move the shift lever into the gear you wish. SeeShifting
Out of Park (P) on page 2-31.
Notice:Shifting to REVERSE (R) while your vehicle
is moving forward could damage the transmission.
The repairs would not be covered by your warranty.
Shift to REVERSE (R) only after your vehicle is
stopped.
REVERSE (R):Use this gear to back up.
At low vehicle speeds, you can also use REVERSE (R)
to rock your vehicle back and forth to get out of
snow, ice or sand without damaging your transmission.
SeeIf Your Vehicle is Stuck in Sand, Mud, Ice or
Snow on page 4-29for additional information.NEUTRAL (N):In this position, the engine does not
connect with the wheels. To restart when you are
already moving, use NEUTRAL (N) only. You can also
use NEUTRAL (N) when your vehicle is being towed.
{CAUTION:
Shifting into a drive gear while your engine is
running at high speed is dangerous. Unless
your foot is rmly on the brake pedal, your
vehicle could move very rapidly. You could
lose control and hit people or objects. Do not
shift into a drive gear while your engine is
running at high speed.
Notice:Shifting out of PARK (P) or NEUTRAL (N)
with the engine running at high speed may
damage the transmission. The repairs would not
be covered by your warranty. Be sure the engine
is not running at high speed when shifting your
vehicle.
2-27