2000 CADILLAC SEVILLE ECU

2-14
Theft-Deterrent System
If the ignition is off and
any door is open, the
SECURITY light will
flash, reminding you to
arm the system.
To arm the system, do the following:
1. Open the door.
2. Lock the door using the power door lock switch with
the door open or the Remote Keyless Entry (RKE)
system. The SECURITY light should come on and
stay on.
3. Close all the doors. The SECURITY light should
go off within approximately 30 seconds.
When the theft system activates, the horn will sound and
the lamps will flash for about 30 seconds when the door
or trunk is opened without the key or RKE system.Remember, the theft
-deterrent system won't arm if you
lock the doors with a key or use the manual door lock.
It activates only if you use a power door lock with the
door open or the RKE system.
To avoid activating the alarm by accident:

The vehicle should be locked with the door key or
the manual door lock after the doors are closed if
you don't want to arm the theft
-deterrent system.

Always unlock a door with a key or use the RKE
system. (Pressing the unlock button on the RKE
transmitter disables the theft
-deterrent system.)
Unlocking a door any other way will activate the
alarm when a door or the trunk is opened.
If you activate the alarm by accident, unlock the driver's
door with your key. You can also turn off the alarm by
using the unlock button on the RKE system, or by
starting the car with a valid key.
Changes or modifications made to this system by
other than an authorized service facility could void
authorization to use the theft system.

2-15 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
RKE 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 flash.
You can turn off the alarm by unlocking the driver's
door with your key, using the unlock button on the
RKE 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, see ªFuses and Circuit Breakersº
in the Index. 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.
Valet Lock
This switch is located inside the glove box on the left
side. Pressing this switch to ON will disable the use of
the trunk, fuel door and garage door opener.
Pressing this switch to
OFF will enable these
features for use.
Locking the glove box with your key will also help to
secure your vehicle. Note that the RKE transmitter can't
open the trunk or fuel door if the valet lock switch is in
the ON position.

2-16
PASS-Key
III
Your vehicle is equipped
with the PASS
-Key III
(Personalized Automotive
Security System)
theft
-deterrent system.
PASS
-Key III is a passive
theft
-deterrent system. This
means you don't have to do
anything different to arm or
disarm the system. It works
when you insert or remove
the key from the ignition.
Your 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,
and (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, and (2)
this device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modifications 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.
When the PASS
-Key III system senses that someone
is using the wrong key, it shuts down the vehicle's
starter and fuel systems. The starter will not work and
fuel will stop being delivered to the engine. Anyone
using a trial
-and-error method to start the vehicle will
be discouraged because of the high number of electrical
key codes.
When trying to start the vehicle and the engine does not
start and the SECURITY light comes on, the key may
have a damaged transponder. Turn the ignition off and
try again.

2-17
If the engine 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 (see ªFuses and Circuit
Breakersº in the Index). If the engine still does not start
with the other key, your vehicle needs service. If your
vehicle does start, the first key may be faulty. See your
dealer or a locksmith who can service the PASS
-Key III
to have a new key made.
It is possible for the PASS
-Key III decoder to learn
the transponder value of a new or replacement key.
Up to ten additional keys may be programmed for the
vehicle. This procedure is for learning additional keys
only. If all the currently programmed keys are lost or
do not operate, you must see your dealer or 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 blank key that is cut
exactly as a current black colored driver's key that
operates the system. Do not use the gray colored
valet key for this procedure.To program the new key:
1. Insert the current driver's key (black in color) in the
ignition and start the engine. If the engine will not
start, see your dealer for service.
2. After the engine has started, turn the key to OFF and
remove the key.
3. Insert the key to be programmed and turn it to RUN
within ten seconds of removing the previous key.
4. The SECURITY light will turn off once the key has
been programmed. It may not be apparent that the
SECURITY light went on due to how quickly the
key is programmed.
5. Repeat the Steps 1 through 4 if additional keys are
to be programmed.
If you are ever driving and the SECURITY light
comes on and stays on, you will be able to start your
engine if you turn it off. Your PASS-Key III system,
however, is not working properly and must be serviced
by your dealer. Your vehicle is not protected by the
PASS
-Key III system at this time.
If you lose or damage a PASS
-Key III key, see your
dealer or a locksmith who can service PASS
-Key III to
have a new key made.

2-55 Center Console Storage
The center console comes with a storage tray, a storage
compartment for CDs or tapes, a dual cupholder that
unfolds, a coinholder, an optional phone and an armrest.
The cupholder can be opened by pressing on the surface
panel located in front of the armrest and unfolding it.
Close the lid to secure.
Rear Storage Armrest
Your vehicle is equipped with a rear seat armrest which
includes an open storage compartment and a dual
cupholder that unfolds for use. Pull the armrest down by
using the attached handle. Push in the lever located at
the end of the armrest to open the storage compartment
and access the cupholder.
Wastebasket
The wastebasket is located on the passenger's side
near the footwell. To remove, pull the bottom portion
outward to release the velcro and slide the basket toward
you. Reverse the steps to reinstall.
Convenience Net
The convenience net is inside the back wall of the trunk.
Put small loads, like grocery bags, behind the net. It can
help keep them from falling over during sharp turns or
quick starts and stops.
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.

2-77 Oil Pressure Light
This light tells you if there
could be a problem with
your engine oil pressure.
The light goes on when you turn your key to ON or
START. It goes off once you start your engine. That's
a check to be sure the light works. If it doesn't come on,
be sure to have it fixed so it will be there to warn you if
something goes wrong.
When the light comes on and stays on, it means that oil
isn't flowing through your engine properly. You could be
low on oil and you might have some other system problem.
CAUTION:
Don't keep driving if the oil pressure is low.
If you do, your engine can become so hot that
it catches fire. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
NOTICE:
Damage to your engine from neglected oil
problems can be costly and is not covered by
your warranty.
Security Light
For information r
egarding this light,
see ªTheft
-Deterrent
Systemº in the Index.
Cruise Control Light
This light comes on
whenever you set your
vehicle's cruise control.

2-86
SERVICE SUSPENSION SYS - 84: This message is
displayed to indicate that the suspension system is not
operating properly. To correct this problem, have your
vehicle serviced at your dealership.
SERVICE THEFT SYSTEM
- 34: This message
means there is a problem in the Personalized Automotive
Security System (PASS
-Key
III). A fault has been
detected in the system which means that the PASS
-Key
III system is disabled and is not protecting the vehicle.
The vehicle usually restarts, however, you may want to
take your vehicle to a proper service center before turning
off the engine.
SERVICE TRANSMISSION
- 100: See your dealer
for repair.
SERVICE VEHICLE SOON
- 3: This message is
displayed when a non
-emissions related powertrain
malfunction occurs. Have your vehicle serviced by a
technician as soon as possible.
SPEED LIMITED TO 90
- 113: A failure in the
suspension control system has occurred when this
message appears. The Powertrain Control Module (PCM)
determines the speed to which your vehicle is limited.
Have your vehicle serviced if this message appears.STARTING DISABLED REMOVE KEY
- 33: This
message will appear when the Personalized Automotive
Security System (PASS
-Key
III) senses that an
improper ignition key is being used to try to start the
vehicle. Check the ignition key for damage. If it is
damaged, it may need to be replaced. If you see no
damage, remove the key and try to start the vehicle
again. If it still does not start, try another ignition key.
THEFT ATTEMPTED
- 40: This message is
displayed if the theft system has detected a break
-in
attempt while you were away from your vehicle.
TOP SPEED FUEL CUT
-OFF - 111 : This message
will appear when the Powertrain Control Module (PCM)
senses that the maximum speed for your vehicle has
been reached. The speed of your vehicle will surge as
the fuel supply is cut off. This allows your vehicle to
stay in a safe tire operating range. The top speed is set
based on the top speed rating of the tires.
TRACTION ENGAGED
- 91 : When your traction
control system is limiting wheel spin, the TRACTION
ENGAGED message will be displayed. Slippery road
conditions may exist if this message is displayed, so
adjust your driving accordingly. This message will stay
on for a few seconds after the traction control system
stops limiting wheel spin.

3-44
The Setup Wizard will guide you through the steps to
create an e
-mail service. You may need to contact your
ISP for the information required to complete the setup.
Receiving and Sending E-Mail
Your radio uses the cellular phone to connect to your
ISP. Make sure the phone is secure and connected.
Begin the modem session by connecting the modem
cable (or serial cable with a null modem) to your
computing device. Press and release the modem door on
the radio near the recessed bumps. Connect the cable to
the radio's 25
-pin connector. Start your e-mail program
and connect to the ISP. The radio will receive the phone
number from your PDA and instruct the phone to dial
the number. While connecting, the audio from your
radio will be briefly muted and you will hear the tones
being generated as the modem establishes a connection.
When the connection is complete, the audio will return.
When you end your e
-mail session your radio will
instruct the phone to hang up.
Cellular Phone Reception
If the reception of the cellular signal weakens the error
rate of the modem will increase. If you are having
difficulty connecting or sending and receiving data the
cellular signal may be too weak. To ensure good signal conditions, the cell phone display should show
a minimum of three to four bars for signal strength.
The volume on the phone handset should be set to
three bars for best results.
Text Based Information Services
Your radio can be used to gather information using
enhanced Radio Data Systems (RDS) while you are out of
the vehicle. The radio can provide text
-based information
such as traffic and weather. This is done through a
nationwide network of FM stations. You do not need to
know which station is providing this service, the radio will
search out the station when not being used. Your dealer
can provide details on how to obtain this service.
You can program the radio to automatically wake up
twice daily, for example, at 7 AM and again at 4:30 PM.
If your vehicle is off, the radio will wake up at these
programmed times to gather the information. Although
the radio is awake and receiving data, it will appear to
be off. There will be no sound or display. It may take
up to 15 minutes for each update. The information
will then be available for review when you enter your
vehicle. If the vehicle is on at the time of the scheduled
update, the update will not be performed. In addition
to the user programmable times, the system will
automatically update the information when you turn
the ignition off and leave the vehicle.