This manual covers the Chevrolet Aveo / Sonic, specifically the T300 (Second Generation) model produced in 2012. Built on the Gamma II platform, this subcompact economy car was designed for global markets, including North America, Europe, and Asia, offering a blend of efficiency and practicality. Known for its accessible pricing and a range of engine options, including 1.2L, 1.4L, 1.6L gasoline, and a 1.3L diesel variant, the Aveo/Sonic aimed to provide reliable transportation for everyday use. Its engineering quality is reflected in features like standard ABS and EBD, and available safety systems such as airbags and seatbelt pretensioners, contributing to its competitive standing against rivals like the Ford Fiesta and Toyota Yaris. This comprehensive workshop and service repair manual, written in English and comprising over 1500 pages, is your definitive guide to maintaining and repairing the Chevrolet Aveo / Sonic. It provides detailed procedures for scheduled maintenance, including oil changes, filter replacements, and fluid checks, as well as in-depth troubleshooting and diagnostic information for all major systems. Coverage extends to engine mechanics, drivetrain components like manual and automatic transmissions, chassis systems including suspension and brakes, bodywork, HVAC, and the complete electrical system with wiring diagrams. The manual also details engine overhaul, transmission rebuilds, and specific torque specifications, empowering owners and technicians to perform complex repairs and ensure optimal vehicle performance and longevity. 🏷️ Basic Information Identification Make: Chevrolet Model: Aveo / Sonic Year: 2012 Generation Model Generation: T300 (Second Generation) Codes Platform: Gamma II 👋 Introduction Market Position Segment: Subcompact/Economy Car Competitive Analysis Key Competitors: Ford Fiesta, Toyota Yaris, Honda Fit, Nissan Versa, Hyundai Accent Key Features Manual Value Proposition: Empowers DIY owners with professional-grade repair and maintenance information User Benefit: Reduces repair costs, improves vehicle longevity, enhances understanding of vehicle systems 📋 Manual Details Coverage Areas Primary Focus: Service and Repair Market Focus: North America, Europe, Asia (as Aveo) Page Count Estimated Pages: 1500+ Manual Type Type: Workshop Manual / Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete coverage: 1.2L (X12XE/A12XEL/A12XER), 1.4L (LUV/A14XEL/A14XER), 1.6L (LDA/A16XER), 1.3L Diesel (Z13DTJ/A13DTE) Drivetrain: Manual (F17/F13) and Automatic (AF13) Transmissions, Clutch, Driveshafts, Axles, Differential Chassis: Suspension (Front McPherson, Rear Torsion Beam), Steering (Electric Power Steering), Brakes (Front Disc, Rear Drum/Disc), ABS, EBD Body: Exterior body panels, doors, hinges, latches, interior trim, glass, bumpers, chassis structure HVAC: Heating, Ventilation, Air Conditioning system components, refrigerant, operation, diagnostics Electrical: Body electrical system, wiring diagrams, lighting, power windows, locks, mirrors, instruments, ECUs (ECM, TCM, BCM), starter, alternator, battery Safety Systems: Airbags, Seatbelt pretensioners, Restraint control modules Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, tune-ups, tire rotation, brake inspections Troubleshooting: Diagnostic procedures, fault code interpretation, symptom-based troubleshooting for all major systems Repair: Component removal and installation, overhauls, adjustments, calibration for engine, transmission, suspension, brakes, electrical, body Diagnostics: OBD-II diagnostics, module programming, sensor testing, wiring harness testing, component testing Technical Depth Engine Overhaul: Complete engine rebuild procedures, including piston removal, valve assembly, crankshaft/camshaft installation Transmission Rebuild: Detailed steps for manual and automatic transmission disassembly, inspection, repair, and reassembly Electrical Schematics: Comprehensive wiring diagrams for all vehicle systems, including pinouts and component locations Torque Specifications: Precise torque values for all critical fasteners across all vehicle systems 📊 Manual Specifications File Format PDF Quality: High-resolution, printable pages, searchable text Print Quality Print Readability: Optimized for printing individual sections or the entire manual Binding Type Digital Binding: N/A (Digital PDF) Paper Type Digital Paper Simulation: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Base Engine Options: 1.2L Inline-4 (X12XE/A12XEL/A12XER), 1.4L Inline-4 (LUV/A14XEL/A14XER) Performance 1.4L Hp: 100-103 hp (depending on specific variant) 1.4L Torque: 94-97 lb-ft (depending on specific variant) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Engine Codes 1.4L Eco Tech Code: A14XER Engine Maintenance Timing Belt Chain: Timing Chain (no scheduled replacement interval for the chain itself, but tensioner and guides may require inspection) 🔧 Transmission Standard Standard Transmission: 5-speed Manual Optional Optional Transmission: 6-speed Automatic Features Manual Transmission Code: F17 Automatic Transmission Code: AF13 Fluid Specifications Manual Transmission Fluid: API GL-4, SAE 75W-80 Automatic Transmission Fluid: Dexron VI (or equivalent specification) 📐 Dimensions Exterior Wheelbase: Approx. 99.4 inches (2525 mm) Length: Approx. 161.4 inches (4100 mm) Width: Approx. 66.1 inches (1680 mm) Height: Approx. 58.7 inches (1490 mm) Weights Curb Weight: Approx. 2400-2600 lbs (1090-1180 kg), varies by configuration Gross Vehicle Weight Rating: Varies by market and configuration, typically around 3600-3800 lbs 🛡️ Safety Features Ratings NHTSA Front Crash Rating: 4/5 Stars (for some configurations/years) IIHS Side Crash Rating: Good (for some configurations/years) Active Features ABS: Standard Ebd: Standard (Electronic Brake-force Distribution) Passive Features Airbags: Front, Side, Curtain (availability varies by trim and market) Seatbelt Pretensioners: Standard 💡 Technology Features Infotainment Infotainment System Availability: MyLink infotainment system with touchscreen (optional on some trims) Audio Features:...