2001 Buick LeSabre Owner's Manual - Page 86

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" in the Index). 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 PASS-Key III to have a new key made. It is possible for the PASS-Key III decoder to learn the transponder value of a new or replacement key. Up to 10 additional keys may be programmed for the vehicle. This procedure is for learning additional keys only. 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 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 the new key, do the following: 1. Insert the current driver's key (black in color) in the ignition and start the engine. If the engine will not start, see your dealer for service. 2. After the engine has started, turn the key to OFF, and remove the key. 3. Insert the key to be programmed and turn it to RUN within 10 seconds of removing the previous key. 4. The SECURITY telltale 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. 5. Repeat Steps 1 through 4 if additional keys are to be programmed. If you are ever driving and the SECURITY light 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 to have a new key made. 2-21