The 2015 Kia Cadenza represents the first generation of Kia's flagship full-size sedan, designed to offer a sophisticated blend of luxury, comfort, and advanced technology. Positioned to compete with established players in its segment, the Cadenza appeals to buyers seeking a spacious and stylish vehicle with a refined driving experience. Engineered with a 3.3L V6 Gasoline Direct Injection (GDI) engine producing approximately 293 horsepower, and paired with a 6-speed automatic transmission, it delivers capable performance. The vehicle's design emphasizes comfort and refinement, making it a compelling choice for those prioritizing a premium feel and extensive features in a large sedan. This workshop manual provides comprehensive service and repair information for the 2015 Kia Cadenza. It covers a wide array of systems, including engine mechanical and electrical components, fuel and emission controls, transaxle systems, drivetrain, suspension, steering, brakes, bodywork, and HVAC. Detailed procedures for maintenance, repair, diagnostics, and troubleshooting are included, alongside essential technical specifications, torque values, and wiring schematics. This manual is an indispensable resource for owners, mechanics, and technicians aiming to maintain, diagnose, and repair the vehicle to factory standards, ensuring its optimal performance and longevity.