How do you reset the anti-theft system for a 2001 Toyota Tacoma?

To reset the anti-theft system on a 2001 Toyota Tacoma, first ensure the vehicle is unlocked and the key is in the ignition. Turn the ignition to the "On" position without starting the engine, then wait for about 10-15 minutes until the security light stops blinking and remains steady. After this, turn the ignition off, then start the engine to complete the reset. If issues persist, consult the vehicle's manual or a professional for further assistance.