Thanks for watching this video, below are the repair links I stated for these problems that may occur with the Lexus ISF.
Special thanks to Kenny88880 on Club Lexus for compiling a thread on many of these issues including a buyer's guide:
https://www.clublexus.com/forums/is-f-2008-2014/898593-purchasing-a-used-isf-the-buyer-s-guide.html
Valley Plate Leak:
Repair DIY: https://www.clublexus.com/forums/is-f-2008-2014/920635-diy-08-14-isf-valley-plate-heat-exchanger.html
Digitizer:
Repair: https://snapguide.com/guides/fix-the-touchscreen-in-a-lexus-is350/
Subwoofer:
Repair: https://www.clublexus.com/forums/is-2nd-gen-2006-2013/693815-blown-is350-ml-subwoofer-repaired.html
Water Pump:
Repair: https://www.clublexus.com/forums/is-f-2008-2014/831735-water-pump-diy.html
YouTube: https://www.youtube.com/watch?v=BE0O29lPSBs