Rear Washer Nozzle: Adjustment
WARNING: This page is about a different car, the 2003 Lexus RX 300 and 2002 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.
Using a tool like the one shown, change the direction of the nozzle hole to adjust the point where the washer fluid hits the back door glass. See Figure.