Power Window Lock
WARNING: This page is about a different car, the 2005 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
The power window lock is designed to lock operation of all windows except for driver's door window.
When the lock switch is pressed to lock position, ground of the sub-switches in the main power window and door lock/unlock switch is disconnected. This prevents the power window motors from operating.