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Testing the Alarm
1. 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 RKE transmitter and close
the door. Wait approximately 30 seconds
until the security light goes off.
3. Reach in and unlock the door using the
manual lock and open the door. The horn
will sound and the exterior lamps will ash.
The alarm can be turned off by unlocking the
driver’s door with the 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, seeFuses and Circuit
Breakers on page 447. 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.
Immobilizer
This device complies with Part 15 of the FCC
Rules. 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.
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 modi cations to this system by other
than an authorized service facility could void
authorization to use this equipment.
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Immobilizer Operation
Your vehicle has a
passive theft-deterrent
system.
The system works when the key is turned to ON.
The key uses a transponder that matches an
immobilizer control unit in your vehicle. Only the
correct key will start the vehicle. If the key is ever
damaged, you may not be able to start your vehicle.When trying to start the vehicle, if 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.
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 447. 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
theft-deterrent system and have a new key made.
It is possible for the theft-deterrent system decoder
to learn the transponder value of a new or
replacement key. Up to 10 additional keys may be
programmed for the vehicle. The following
procedure is for programming additional keys only.
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Canadian Owners:If you lose or damage your
keys, only a GM dealer can service the
theft-deterrent system to have new keys made.
To program additional keys you will require
two current driver’s keys. You must add a step to
the following procedure. After Step 2, repeat
Steps 1 and 2 with the second current driver’s key.
Then continue with Step 3.
To program a new key do the following:
1. Verify that the new key has PK3+ stamped
on it.
2. Insert the current driver’s 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 key to be programmed and turn it to
ON within ten seconds of removing the
previous key.
5. 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.
6. Repeat the Steps 1 through 4 if additional
keys are to be programmed.
If the security light comes on and stays on while
driving, you will be able to restart the engine if you
turn it off. The theft-deterrent system, however,
is not working properly and must be serviced
by your dealer. Your vehicle is not protected by
the theft-deterrent system at this time.
In an emergency, contact Cadillac Roadside
Service
®. SeeRoadside Service on page 488.
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