The 2000 Lexus GS300 and GS400 represent the pinnacle of luxury sport sedan engineering for their era. Built on the S160 chassis, these vehicles embody Lexus's commitment to refinement, reliability, and performance. The GS300 features a smooth and durable 3.0L inline-six engine, while the GS400 offers a potent 4.0L V8, both delivering a balanced blend of power and quiet operation. With sophisticated suspension systems and premium interior appointments, these sedans were designed to compete with the best in the luxury market, offering a compelling combination of driving dynamics and occupant comfort.

This comprehensive service repair manual provides detailed information for the maintenance and repair of your 2000 Lexus GS300 or GS400. It covers all major systems, including engine mechanicals, transmissions, drivetrain, suspension, steering, brakes, and electrical systems. You will find step-by-step procedures for routine maintenance, component overhauls, and troubleshooting complex issues. Technical specifications, diagnostic flowcharts, and essential data such as torque values and fluid types are included to ensure accurate and effective service. This manual is an indispensable resource for owners, technicians, and mechanics seeking to preserve the integrity and performance of their Lexus GS.