The Holden HSV GTS, produced between 2013 and 2015 on the Gen-F platform (VF/WN chassis codes), represents the pinnacle of Holden's performance offerings. This highly capable vehicle, available as a sedan and in certain utility variants, was engineered to compete with premium performance marques. It is distinguished by its powerful V8 engine options, including the 6.0L L77 and the potent 6.2L LS3, paired with either a robust 6-speed manual or a 6-speed automatic transmission. The GTS is further characterized by its advanced chassis tuning, high-performance Brembo braking systems, and a driver-focused interior, making it a sought-after vehicle for enthusiasts and a symbol of Australian automotive performance. This comprehensive workshop service repair manual provides extensive coverage for all Holden HSV GTS models within the Gen-F VF-WN range, encompassing every aspect from basic maintenance to complete engine and transmission overhauls. It details routine servicing, scheduled maintenance, and in-depth diagnostic and repair procedures for all major vehicle systems, including the engine, drivetrain, suspension, steering, brakes, and electrical systems. With clear, step-by-step instructions and detailed technical specifications, this manual is an essential resource for owners, mechanics, and technicians aiming to maintain, troubleshoot, and repair their HSV GTS with accuracy and efficiency.