2007 Buick Rendezvous Owner's Manual - Page 126

It is possible for the PASS-Key® III decoder to program the transponder value of a new or replacement key. Up to 10 additional keys may be programmed for the vehicle. This procedure is for programming additional keys only. If all the currently programmed keys are lost or do not operate, you must see your GM dealer or a locksmith who can service PASS-Key® III to have keys made and programmed to the system. See your GM dealer who can service PASS-Key® III to get a new key blank that is a cut exactly as the ignition key that operates the system. Canadian Owners: If you lose or damage your keys, only a GM dealer can service PASS-Key® III to have new keys made. To program additional keys you will need two current driver's keys, black in color. You must add a step to the following procedure. After Step 3 repeat Steps 1 through 3 with the second current driver's key. Then continue with Step 4. To program the new PK3® key do the following: 1. Verify the new key has PK3 stamped on it. 2. Insert the original key in the ignition and start the engine. If the engine will not start, see your GM 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 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 GM dealer. Your vehicle is not protected by the PASS-Key® III system at this time. 126