All Power Window Up Functions do not Operate with Entry Lock Switch: Description
WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
When an entry lock switch is pressed and held for approximately 3 seconds 1) the main body ECU receives a signal via the driver side door ECU, 2) the main body ECU transmits a signal to all the power window regulator motor, and 3) all the power window motors are activated to close the windows