The CTS, first introduced for the 2003 model year, represents a foray into the entry-level luxury sedan segment, characterized by its sharp, angular styling rooted in the brand's Art and Science design philosophy. Built on the GM Sigma platform, this rear-wheel-drive sedan offers a balanced driving experience, powered by a 3.6L V6 engine producing 255 horsepower and 250 lb-ft of torque, paired with a 5-speed automatic transmission. For the 2007 model year, the CTS received minor updates, building upon a design that aimed to compete with established European luxury marques. It is manufactured in Lansing, Michigan, and is recognized for its strong safety ratings, including a 5-Star NHTSA frontal crash rating and Good IIHS side impact rating, further enhanced by standard StabiliTrak stability control and a comprehensive airbag system.

This manual serves as a comprehensive guide for the CTS, covering essential operational, maintenance, and safety information for owners and technicians. Within its pages, you will find detailed explanations of the vehicle's features, including the instrument cluster, entertainment systems, climate controls, lighting, driver controls, locks, and security systems. It also provides guidance on seating and safety restraints, driving practices, and customer assistance. Furthermore, the manual outlines routine maintenance procedures, such as engine oil changes, air filter inspections, and fluid specifications, along with basic troubleshooting tips and important technical specifications. This resource is designed to help ensure the proper care and longevity of your CTS.