The Toyota Prius, a groundbreaking compact hybrid vehicle, first entered production in 2003 as part of the XW10 generation. Renowned for its pioneering Hybrid Synergy Drive system, this model exemplifies Toyota's commitment to fuel efficiency and environmental consciousness. With its efficient 1.5-liter, 76 hp gasoline engine paired with a 67 hp electric motor, the Prius offered a glimpse into the future of automotive technology, characterized by its unique blend of power and economy. Its robust engineering, coupled with a strong emphasis on reliability, positioned the Prius as a leader in the burgeoning hybrid market, making it an ideal choice for eco-conscious drivers and those seeking advanced, efficient transportation. This comprehensive service repair manual provides an in-depth guide for all models and engines of the 2003 Toyota Prius. Covering over 3000 pages of detailed information, it serves as an indispensable resource for do-it-yourself enthusiasts and professional mechanics alike. The manual meticulously details repair, maintenance, and rebuilding procedures for all major systems, including the engine, brakes, transmission, cooling system, fuel system, and electrical system. It also features extensive troubleshooting guides, diagnostic trouble codes, wiring schematics, torque specifications, and factory maintenance schedules, enabling users to effectively maintain, diagnose, and repair their vehicle, ensuring optimal performance and longevity.