This manual covers the 2008 Lucerne, a vehicle built on the GM Epsilon platform. The brand is recognized for its comfort and luxury, and the 2008 Lucerne continues this tradition, representing a modern large sedan. This comprehensive service and repair manual provides factory-level, highly detailed information, including complete rebuild instructions, ensuring that owners and technicians have access to accurate, vehicle-specific data for all repairs. The scope of this Service and Repair Manual is extensive, offering A-Z coverage for all repairs and models of the 2008 Lucerne. It details routine maintenance procedures, fluid specifications, engine service for both the 3.8L V6 and 3.6L V6 direct injection engines, transmission service, and complete mechanical and electrical system repairs. Furthermore, it includes diagnostic procedures, troubleshooting guides, and detailed wiring schematics, empowering users to effectively maintain, diagnose, and repair their vehicle.