Download Lexus GS400 online owner’s manual below in PDF format. The Lexus GS400 was a version of the Lexus GS300 with a larger, 4.0L V8 engine, rather than a six cylinder. It was only made for a few years. We have all of the GS400 manuals: 1998, 1999 and 2000.
Click on the link associated with the year model you’re looking for, and then simply click on the download button — the manual will automatically download to your computer. You’ll need a PDF reader, such as Adobe Acrobat or Foxit to view and print the document. You can also use the Google Docs viewer to read the Lexus GS400 manual.