When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Toyota/Lexus uses ATF (Dexron III) in most (all?) their power steering systems, not power steering fluid. If they used power steering fluid, I'd recommend you follow the DIY and flush it all out with a couple of quarts of Dexron III.