Zipit555

08 ES350 that the Nav doesn't work.......screen goes white and sometimes can see the location icon but mostly just white. The BU Cam, radio display, and climate controls all display as they should. Lexus dealer said to replace the Nav screen for about $2000 (or salvage part for about $1000) but that doesn't make sense to me because the other functions seem to display on the screen just fine. Any thoughts or suggestions. Seems like something driving the graphics for the Nav is just loose, missing fuse, or something like that. Not sure where to start.

Thanks!!