Lexus GS400 Service & Maintenance Manuals

Select a model year to view and download manuals. Available for 1998–2000  (3 years).

Browse all available Lexus GS400 maintenance schedules and service manuals below. Each document is in PDF format and sourced directly from Lexus's official website. Includes maintenance schedules, service guides, owner's manuals, and quick-start guides where available.