🏷️ Basic Information Identification Make: Cadillac Model: CTS Model Year: 2008-2009 Chassis Code: GMT955 Codes Platform: GM Sigma platform 👋 Introduction Market Position Segment: Mid-size Luxury Sedan Brand Perception: Luxury, Performance-oriented Competitive Analysis Key Competitors: BMW 3 Series, Mercedes-Benz C-Class, Audi A4, Lexus IS, Infiniti G35/G37 Key Features Design Language: Angular 'Art and Science' design, prominent grille, vertical headlights Driving Dynamics: Rear-wheel drive platform (RWD) or All-wheel drive (AWD) option, sporty handling Interior Appointments: High-quality materials, modern dashboard design 📋 Manual Details Coverage Areas Product Type: Service Repair Manual Availability: Instant Download Delivery Method: Digital Download (PDF) File Size Indication: Up to 5 GB Page Count Page Count: Not Specified (Implied comprehensive, hundreds of illustrations) Manual Type Manual Type: Factory Service Manual / Workshop Manual / Repair Guide Language Language: English Format File Format: PDF Compression Format: ZIP/RAR (May require WinZip or WinRAR) System Compatibility: Windows, Linux, Mac 📖 Manual Coverage Systems Covered Powertrain: Engine Overhaul and Rebuilding, Transmission Information, Firing Orders, Engine Performance, Serpentine Belt Routings Brakes: Brakes, Brake System Diagnostics Suspension Steering: Front End Procedures and Specifications, Suspension, U-Joint and CV-Joint Service Procedures Electrical Electronics: Wiring Diagrams, Computer Diagnostic Codes, Troubleshooting and Diagnostics Body Chassis: Sunroof HVAC: Air Conditioning Service and Capacities Procedures Included Maintenance: Factory Maintenance Schedules and Charts, Preventative Maintenance Repair: Repair Procedures, Restore, Rebuild, Service Diagnostics: Troubleshooting and Diagnostics, Trouble Codes, Computer Diagnostic Codes Timing Belt: Timing Belt Replacement, Timing Belt Service Procedures Technical Depth Depth: Comprehensive (From basic maintenance to complete engine overhaul and rebuilding) Illustrations: Hundreds of Illustrations, Zoomable Illustrations, Detailed Component Explosions, Exploded Views Torque Specifications: Complete Torque Specifications Part Information: Detailed component breakdowns, Breakdown of all part numbers 📊 Manual Specifications File Format Digital Quality: High Quality PDF, Printable Searchability: Implied searchable text for PDF Print Quality Print Capability: Printable on any computer and printer Binding Type Binding: Not Applicable (Digital Download) Paper Type Paper Type: Not Applicable (Digital Download) Licensing Usage Rights: No restrictions on printing or saving/burning to disc ⚙️ Engine Specifications Primary Engine Engine Options: 3.6L V6 (LLT/LP1), 4.6L V8 (Northstar/LC3) Engine Displacement V6: 3564 cc (217 cubic inches) Engine Displacement V8: 4600 cc (280 cubic inches) Performance Horsepower V6 2008: 255 hp @ 6200 rpm Torque V6 2008: 260 lb-ft @ 3200 rpm Horsepower V6 2009: 263 hp @ 6400 rpm (LLT) Torque V6 2009: 253 lb-ft @ 3400 rpm (LLT) Horsepower V8: 320 hp @ 6400 rpm (2008), 323 hp @ 6400 rpm (2009) Torque V8: 315 lb-ft @ 3400 rpm (2008), 319 lb-ft @ 3400 rpm (2009) Fuel System Fuel Delivery: Multi-port Fuel Injection (MPFI) Fuel Type: Unleaded Regular (87 octane recommended), Premium for optimal performance Engine Code Engine Code V6: LLT (2009), potentially others for 2008 variant Engine Code V8: LC3 (4.6L Northstar V8) 🔧 Transmission Standard Standard Transmission: 6-speed automatic (GM 6L50) Optional Optional Transmission: All-wheel drive (AWD) with 6-speed automatic Features Transmission Features: Driver Shift Control manual mode, adaptive shift logic Fluid Specs Transmission Fluid Type: Dexron VI (refer to manual for exact specifications and capacities) 📐 Dimensions Exterior Length: 192.2 inches Width: 72.5 inches Height: 58.0 inches Wheelbase: 113.4 inches Weights Curb Weight V6 Rwd: Approximately 3700-3800 lbs Curb Weight V8 Rwd: Approximately 3900-4000 lbs Curb Weight AWD: Approximately 4000-4100 lbs Cargo Trunk Capacity: 13.6 cubic feet 🛡️ Safety Features Ratings NHTSA Front Impact: 5-star (Driver), 5-star (Passenger) NHTSA Side Impact: 5-star (Driver), 5-star (Rear Passenger) IIHS Side Impact: Good IIHS Rear Impact Whiplash: Good Active Features Traction Control: Standard Electronic Traction Control System (TCS) Stability Control: Standard StabiliTrak (Vehicle Stability Enhancement System) Passive Features Airbags: Frontal airbags, Side-impact airbags, Curtain airbags Seatbelts: Front pretensioners, Load limiters 💡 Technology Features Infotainment Infotainment System: Available Bose premium sound system, AM/FM/CD/MP3 player, optional navigation system. Connectivity: Available Bluetooth for hands-free calling, auxiliary audio input. Driver Assistance Driver Assistance Features: Keyless ignition, cruise control, optional rearview camera. Comfort Convenience Comfort Features: Dual-zone automatic climate control, power-adjustable seats, heated front seats (optional). 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000 to 7,500 miles or 6 months (check manual for specific engine oil life monitor recommendations) Tire Rotation: Every 7,500 miles Coolant Flush: Refer to manual, typically around 50,000-100,000 miles or 5 years for extended life coolant Fluid Specifications Engine Oil Type V6 V8: GM dexos1™ Gen 2 (or equivalent SAE 5W-30 synthetic, refer to owner's manual for exact spec) Engine Coolant Type: GM P/N 12346993, Dex-Cool® (Orange) or equivalent (refer to owner's manual) Brake Fluid Type: DOT 3 or DOT 4 (refer to owner's manual) Known Issues Common Issues V6 Llt: Carbon buildup on intake valves (direct injection), potential timing chain issues, occasional transmission control module problems. Common Issues V8 Northstar: Head gasket leaks (less common in later iterations but possible), coolant leaks, potential for oil consumption with high mileage. Suspension Components: Early...