Passenger side door, with your key.
The only way to reset the code on a 2004 Nissan Maxima's anti theft system is by taking it to the dealership.
Look in your owner's manual. put the key in the door
= How do you reset the Airbag light on a 2001 Nissan Maxima SE ? =
Not sure if it's the same but on a J30 and Nissan Maxima you put the key in the truck luck and open it. That turns off the alarm.
unlock the doors manually and it should reset your alarm.
When you have to reset the anti-theft device on a 2004 Nissan Maxima you should take it to the dealership where they can do it by hooking your car to the computer.
http://en.allexperts.com/q/Car-Alarms-1513/1996-Nissan-Maxima-Security.htm
There isn't one.
follow manufacturers instructions
The easiest way to reset the 2004 Nissan Maxima computer is to remove the main fuse. Removing the main fuse for 10 seconds will cause the computer to reboot.
Go to autozone
reset botton for the alarm