How to fix Rear power window not functioning in Lexus ES330?

How to fix Rear power window not functioning in Lexus ES330?

The power rear window behind the drivers seat on my Lexus ES 330 stopped working. I hear a whirring noise when I press the window up/down switch on the door but the glass does not move up or down. Any thoughts as to what might be the issue and pointers/instructions on how to fix this would be great. Also if there is a manual work around to open and close the window that could work as a temporary solution, please feel free to suggest.