This manual covers the 2012 Chevrolet Aveo / Sonic, a subcompact vehicle designed for efficient urban mobility and everyday use. Built on GM's global B-segment platform, this model offers a blend of practicality and modern features, with engine options including a 1.4L inline-4 cylinder engine available in naturally aspirated (LUJ) and turbocharged (LUV) configurations, producing approximately 100-108 hp and 138 hp respectively. The vehicle is equipped with either a 5-speed manual or an optional 6-speed automatic transmission and features a standard Anti-lock Braking System, with available Traction Control and Electronic Stability Control for enhanced safety. Its dimensions include a wheelbase of 99.4 inches and a length of 161.4 inches, making it a compact yet capable choice. This comprehensive factory service repair manual provides detailed information essential for the maintenance, diagnosis, and repair of your 2012 Chevrolet Aveo / Sonic. It covers all major systems, including engine mechanicals, fuel, cooling, drivetrain, chassis, suspension, steering, and electrical systems, complete with wiring diagrams. Within its pages, you will find routine maintenance procedures, component repair and replacement instructions, and in-depth troubleshooting and diagnostic procedures. This English-language resource is designed for technicians, mechanics, and DIY enthusiasts, offering factory-level technical data and insights to ensure the longevity and optimal performance of your vehicle.