The Holden Commodore WH series, produced from 1999 to 2004, represents a significant iteration of Holden's enduring large family car, available in both sedan and station wagon body styles. Built on a refined GM platform derived from the VT/VS models, this generation offered a choice of robust powertrains, including the Ecotec 3.8L V6 and the potent 5.7L LS1 V8. Known for its rear-wheel-drive configuration, spacious interior, and comfortable ride, the WH Commodore was designed to provide a compelling blend of performance and practicality, making it a popular choice in its segment against competitors like the Ford Falcon and Toyota Avalon. Its Australian heritage and focus on local driving conditions contributed to its appeal. This comprehensive factory service repair manual is your definitive guide to understanding, maintaining, and repairing your Holden Commodore WH. Covering an extensive range of systems, including the powertrain, chassis, electrical, and body components, this manual provides detailed procedures for scheduled maintenance, diagnostics, and repair. You will find step-by-step instructions for everything from routine fluid changes and component replacements to complex engine and transmission overhauls. Essential technical specifications, troubleshooting guides, and detailed diagrams are included to ensure accurate and efficient servicing, empowering owners and technicians to keep their vehicles in optimal condition.