Buick 2005 Terraza - Manual (Page 103)

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 message
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 instrument panel PASS
KEY fuse. 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. See Fuses and Circuit Breakers
on page 5-87.
It is possible for the PASS-Key ® III decoder to learn
the transponder value of a new or replacement key.
Up to 10 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 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 the new key has PK3 stamped on it.
2. Insert the original, already programmed key into the
ignition lock cylinder 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 RUN
within 10 seconds of removing the previous key.
5. The security message will turn off once the key has
been programmed. It may not be apparent that the
security message went on due to how quickly
the key is programmed.
6. Repeat Steps 1 through 4 if additional keys are to
be programmed.
If you are ever driving and the security message
comes on and stays on, you will be able to restart 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.
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