2006 CADILLAC DTS ECU

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 or the
remote keyless entry system and close the
door. Wait 30 seconds until the security lamp
goes off.
3. Reach in and unlock the door using the manual
lock and open the door. The horn will sound and
the hazard lights will ash.
You can turn off the alarm by unlocking the driver’s door
with your key, using the unlock button on the remote
keyless entry transmitter or by starting the car with
a valid key.
If the alarm does not sound when it should, check to
see if the horn works. The horn fuse may be blown. To
replace the fuse, seeFuses and Circuit Breakers on
page 5-93. If the fuse does not need to be replaced, you
may need to have your vehicle serviced.
To reduce the possibility of theft, always arm the
theft-deterrent system when leaving your vehicle.
PASS-Key®III+
The PASS-Key®III+ system operates on a radio
frequency subject to Federal Communications
Commission (FCC) Rules and with Industry Canada.This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,
including interference that may cause
undesired operation.
This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modications to this system by other than
an authorized service facility could void authorization to
use this equipment.
PASS-Key
®III+ uses a radio frequency transponder in
the key that matches a decoder in your vehicle.
PASS-Key®III+ Operation
Your vehicle has PASS-Key®III+ (Personalized
Automotive Security System) theft-deterrent system.
PASS-Key
®III+ is a passive theft-deterrent system. This
means you do not have to do anything special to arm
or disarm the system. It works when you insert or
remove the key from the ignition or transition the key
from run, accessory or start from the off position.
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When the PASS-Key®III+ system senses that someone
is using the wrong key, it prevents the vehicle from
starting. Anyone using a trial-and-error method to start
the vehicle will be discouraged because of the high
number of electrical key codes.
If the engine does not start and the security light comes
on when trying to start the vehicle, the key may have
a damaged transponder. Turn the ignition off and
try again.
If the engine still does not start, and the key appears to
be undamaged, try another ignition key. At this time,
you may also want to check the fuse, seeFuses
and Circuit Breakers on page 5-93. If the engine still
does not start with the other key, your vehicle needs
service. If your vehicle does start, the rst key may be
faulty. See your dealer who can service the
PASS-Key
®III+ to have a new key made. In an
emergency, contact Roadside Assistance.
It is possible for the PASS-Key
®III+ decoder to “learn”
the transponder value of a new or replacement key.
Up to nine additional keys may be programmed for the
vehicle. The following procedure is for programming
additional keys only. If all the currently programmed
keys are lost or do not operate, you must see your
dealer or a locksmith who can service PASS-Key
®III+
to have keys made and programmed to the system.See your dealer or a locksmith who can service
PASS-Key
®III+ to get a new key blank that is cut
exactly as the ignition key that operates the system.
To program the new key do the following:
1. Verify that the new key has a
1stamped on it.
2. Insert the original, already programmed, key in the
ignition and start the engine. If the engine will not
start, see your dealer for service.
3. After the engine has started, turn the key to OFF,
and remove the key.
4. Insert the new key to be programmed and turn it to
the RUN position within ve seconds of removing
the original key.
5. The security light will turn off once the key has
been programmed.
6. Repeat Steps 1 through 5 if additional keys are to
be programmed.
If you are driving and the security light comes on and
stays on, you may be able to restart your engine.
Your PASS-Key
®III+ system, however, may not be
working properly and must be serviced by your dealer.
If you lose or damage your PASS-Key
®III+ key,
see your dealer or a locksmith who can service
PASS-Key
®III+ to have a new key made.
2-22

OnStar®System
OnStar®uses several innovative technologies and live
advisors to provide you with a wide range of safety,
security, information, and convenience services. If your
airbags deploy, the system is designed to make an
automatic call to OnStar
®Emergency where we
can request emergency services be sent to your
location. If you lock your keys in the car, call OnStar
®
at 1-888-4-ONSTAR and they can send a signal to
unlock your doors. If you need roadside assistance,
press the OnStar
®button and they can contact
Roadside Service for you.
A complete OnStar
®Owner’s Guide and the Terms and
Conditions of the OnStar®Subscription Service
Agreement are included in the vehicle’s OnStar®
Subscriber Information packet located in your vehicle.
For more information, visit www.onstar.com or
www.onstar.ca, contact OnStar
®at 1-888-4-ONSTAR
(1-888-466-7827), or press the OnStar®button to speak
with an OnStar®advisor 24 hours a day,
7 days a week.
OnStar®Services
The Directions & Connections®Plan is included on new
vehicles for the rst year from the date of purchase.
You can extend this plan beyond the rst year to meet
your needs. For more information, press the OnStar
®
button to speak with an advisor.
Directions & Connections®Plan

Advanced Automatic Crash Notication
Automatic Notication of Airbag Deployment
Emergency Services
Roadside Assistance
Stolen Vehicle Location Assistance
AccidentAssist
Remote Door Unlock/Vehicle Alert
OnStar®Vehicle Diagnostics
OnStar®Hands-Free Calling
OnStar®Virtual Advisor
Driving Directions
RideAssist
Information and Convenience Services
2-43

Universal Home Remote
System
The Universal Home Remote System, a combined
universal transmitter and receiver, provides a way to
replace up to three hand-held transmitters used to
activate devices such as gate operators, garage door
openers, entry door locks, security systems, and
home lighting.If your vehicle has the Universal Home Remote
Transmitter, it complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation.
This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes and modications to this system by other than
an authorized service facility could void authorization
to use this equipment.
2-45

Universal Home Remote System
Operation
Do not use the Universal Home Remote with any
garage door opener that does not have the stop and
reverse feature. This includes any garage door opener
model manufactured before April 1, 1982. If you
have a newer garage door opener with rolling codes,
please be sure to follow Steps 6 through 8 to complete
the programming of your Universal Home Remote
Transmitter.
Read the instructions completely before attempting to
program the Universal Home Remote. Because of
the steps involved, it may be helpful to have another
person available to assist you in the programming steps.
Keep the original hand-held transmitter for use in
other vehicles as well as for future Universal Home
Remote programming. It is also recommended that upon
the sale of the vehicle, the programmed Universal
Home Remote buttons should be erased for security
purposes. See “Erasing Universal Home Remote
Buttons” later in this section or, for assistance, see
Customer Assistance Offices on page 7-4.
Be sure that people and objects are clear of the garage
door or gate operator you are programming. When
programming a garage door, it is advised to park outside
of the garage.It is recommended that a new battery be installed in
your hand-held transmitter for quicker and more
accurate transmission of the radio-frequency signal.Programming Universal Home Remote
Follow these steps to program up to three channels:
1. Press and hold down the two outside Universal
Home Remote buttons, releasing only when the
Universal Home Remote indicator light begins
to ash, after 20 seconds. Do not hold down the
buttons for longer than 30 seconds and do not
repeat this step to program a second and/or third
hand-held transmitter to the remaining two Universal
Home Remote buttons.
2. Position the end of your hand-held transmitter
about 1 to 3 inches (3 to 8 cm) away from the
Universal Home Remote buttons while keeping the
indicator light in view.
3. Simultaneously press and hold both the desired
Universal Home Remote button and the hand-held
transmitter button. Do not release the buttons
until Step 4 has been completed.
Some entry gates and garage door openers may
require you to substitute Step 3 with the procedure
noted in “Gate Operator and Canadian
Programming” later in this section.
2-46

Reprogramming a Single Universal
Home Remote Button
To program a device to Universal Home Remote using
a Universal Home Remote button previously trained,
follow these steps:
1. Press and hold the desired Universal Home
Remote button. Do not release the button.
2. The indicator light will begin to ash after
20 seconds. While still holding the Universal Home
Remote button, proceed with Step 2 under
“Programming Universal Home Remote” shown
earlier in this section.
For additional information on Universal Home Remote,
seeCustomer Assistance Offices on page 7-4.
Storage Areas
Glove Box
To open the glove box, lift up on the lever. The glove
box has a light inside. Use the key to lock and unlock.
Cupholder(s)
There are cupholders located in the full oor console, or
in the front of the center seat console. In addition to
this, cup holders are located in the rear armrest.
To access the full oor console cupholder slide the
cover back. To access the center seat console
cupholder, turn the front portion of console.
Coinholder(s)
Your vehicle may be equipped with a coinholder.
2-49

Center Console Storage Area
If your vehicle has a full oor console it has two storage
areas. To access the upper tray storage, lift the left
lever located in the front of the armrest lid. To access
the lower storage area, lift the right lever. If your vehicle
has a center seat console it will have two storage
areas. To access the upper storage area, press the
button located on the front of the armrest and lift
the armrest lid. To access the lower storage area, pull
the strap located behind the cup holder.
Center Flex Storage Unit
Your vehicle may be equipped with a center ex storage
unit that includes a front center seat with a lap belt
and an underseat storage compartment. The center
seatback can also be used as a fold down armrest.
Cupholders are also located at the front edge of
the storage unit and can be accessed by folding the
compartment forward.
When not being used, the center seat lap belt can be
stored in the underseat storage compartment as shown.
Rear Seat Armrest
Your vehicle may be equipped with a rear seat center
console and armrest. To open the console, push
the button and lift the lid. Inside the console are two
cupholders that can be pulled out when in use.
Convenience Net
Your vehicle may be equipped with a convenience net.
The convenience net attaches to the oor of the
trunk. Put small loads, like grocery bags, behind the net.
The net is not for larger, heavier loads. Store them in
the trunk as far forward as you can. When not using the
net, hook the net to the tabs securing it to the
sill plate.
2-50

Warning Lights, Gages, and Indicators............3-55
Instrument Panel Cluster................................3-56
Speedometer and Odometer...........................3-57
Tachometer.................................................3-57
Safety Belt Reminder Light.............................3-57
Passenger Safety Belt Reminder Light.............3-58
Airbag Readiness Light..................................3-58
Passenger Airbag Status Indicator...................3-59
Charging System Light..................................3-61
Brake System Warning Light..........................3-62
Anti-Lock Brake System Warning Light.............3-63
Low Tire Pressure Warning Light....................3-63
Traction Control System (TCS)
Warning Light...........................................3-64
StabiliTrak
®Indicator Light..............................3-64
Engine Coolant Temperature Warning Light......3-65
Engine Coolant Temperature Gage..................3-65
Malfunction Indicator Lamp.............................3-66
Oil Pressure Light.........................................3-68
Security Light...............................................3-69
Fog Lamp Light............................................3-69
Rear Fog Lamp Light....................................3-69
Lights On Reminder......................................3-70Cruise Control Light......................................3-70
Highbeam On Light.......................................3-70
Fuel Gage...................................................3-70
Driver Information Center (DIC).......................3-71
DIC Controls and Displays.............................3-72
DIC Warnings and Messages.........................3-76
DIC Vehicle Customization.............................3-88
Audio System(s).............................................3-97
Setting the Time (Radio with Single
CD Player)...............................................3-98
Setting the Time (Radio with Six-Disc
CD Player).............................................3-100
Radio with CD (MP3)..................................3-102
Navigation/Radio System..............................3-121
Theft-Deterrent Feature................................3-121
Audio Steering Wheel Controls......................3-122
Radio Reception.........................................3-123
Care of Your CDs.......................................3-124
Care of the CD Player.................................3-124
Diversity Antenna System.............................3-124
XM™ Satellite Radio Antenna System............3-125
Section 3 Instrument Panel
3-2