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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. See Fuses 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 first 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.
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
®
. See Roadside Service on page 488.
110