2007 Buick Terraza Owner's Manual - Page 127

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. 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 497. 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 LOCK 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. 127