How do you reset anti theft system on a 2008 Nissan Titan?

To reset the anti-theft system on a 2008 Nissan Titan, first ensure you have the key or key fob. Insert the key into the ignition and turn it to the "On" position without starting the engine. Leave it in this position for about 10 minutes until the security light turns off, then turn the key back to the "Off" position. Finally, turn the key back to "On" to confirm that the system has been reset.