Key Off Power Window Operation
WARNING: This page is about a different car, the 2002 Lexus GS 430 and 2002 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
It is possible to operate the power window for 45 seconds after the ignition key is turned from ON to OFF and the driver or front passenger door is opened. However, when the door is closed while the window is being operated, the power window operation is stopped even though 45 seconds have not elapsed.