The Buick Terraza, produced from 2005 to 2009, is a mid-size minivan built on GM's U-body platform, known for its refined ride and spacious interior designed to accommodate up to seven passengers. Offering a comfortable and well-appointed experience, it was engineered with a focus on reliability and family utility. The Terraza was available with a choice of 3.5L or 3.9L V6 engines, paired with a 4-speed automatic transaxle, providing ample power for daily driving and longer journeys. Its design emphasized practicality, including significant cargo capacity and features like available rear-seat entertainment and telematics, positioning it as a capable and versatile option in its segment. This factory service and repair manual provides comprehensive, A-Z coverage for all Buick Terraza models from 2005-2009. It details everything from routine maintenance, fluid specifications, and service intervals to in-depth diagnostic procedures, troubleshooting guides, and step-by-step repair instructions for all major vehicle systems. The manual covers powertrain, chassis, body, and electrical components, including detailed wiring diagrams and specific information relevant to using factory diagnostic tools. This resource is invaluable for owners, mechanics, and technicians seeking to maintain, diagnose, and repair the Terraza with factory-level accuracy and efficiency.