How do you disable an anti theft system on a 2000 Toyota Avalon?

To disable the anti-theft system on a 2000 Toyota Avalon, you can try unlocking the driver's side door with the key, as this often deactivates the system. If that doesn't work, you may need to disconnect the battery for a few minutes to reset the system. Additionally, consult the owner's manual for specific instructions or look for a hidden reset button, if available. If issues persist, consider seeking assistance from a professional mechanic or a dealership.