🏷️ Basic Information Identification Make: Cadillac Model: DTS Year: 2006-2011 Codes Platform: GM G-Body (extended) 👋 Introduction Market Position Segment: Full-size luxury sedan Brand Perception: American luxury, comfort-oriented, powerful V8 engines. Competitive Analysis Key Competitors: Lincoln Town Car, Chrysler 300, Lexus LS, Mercedes-Benz S-Class, BMW 7 Series. Key Features Drivetrain: Front-wheel drive (FWD) standard, optional all-wheel drive (AWD) available on some models. Ride Comfort: Known for its smooth, quiet ride and comfortable interior, often featuring Magnetic Ride Control. Technology: Pioneered many luxury features in American sedans, including advanced climate control and audio systems. 📋 Manual Details Coverage Areas Geographical Coverage: North America (primarily, based on Cadillac's market) Page Count Estimated Page Count: 1500+ Manual Type Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed diagnostics, repair, and overhaul for all DTS engines (4.6L V8 Northstar variants). Engine Electrical: Ignition system, fuel injection, emissions control, engine sensors, PCM operation, wiring diagrams. Transmission: 4-speed automatic (4T80-E) diagnostics, repair, fluid service, and overhaul procedures. Brakes: Hydraulic system, ABS, traction control, parking brake, disc brake component repair, bleeding procedures. Suspension: Front and rear suspension components, steering system, power steering, wheel alignment specifications. Electrical Systems: Lighting, interior electronics, power accessories (windows, seats, mirrors), body control module (BCM), comfort systems. HVAC: Air conditioning system, heating, ventilation, climate control module, component diagnosis and repair. Body And Frame: Exterior and interior trim, doors, hoods, trunks, bumpers, structural components, glass replacement. Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs), common faults and solutions, use of diagnostic tools. Procedures Included Scheduled Maintenance: Oil changes, filter replacements, fluid checks and top-offs, tire rotations, spark plug replacement. Routine Repairs: Brake pad/rotor replacement, belt replacement, battery service, bulb replacement, wiper blade replacement. Component Replacement: Alternator, starter, water pump, fuel pump, ignition coils, various sensors, suspension components. Troubleshooting Diagnostics: Step-by-step fault finding for electrical, mechanical, and performance issues. Overhauls Rebuilds: Engine and transmission overhaul procedures, detailed internal component specifications. Technical Depth Depth: Comprehensive, covering basic to advanced repairs and diagnostics. Diagnostic Tools: Guidance on using OBD-II scanners and specific GM diagnostic software (e.g., Tech 2). Wiring Diagrams: Full color, system-specific electrical schematics for all major circuits. Exploded Diagrams: Detailed exploded views of components and assemblies for precise identification and reassembly. 📊 Manual Specifications File Format Format Details: PDF Print Quality Printability: High-resolution images and text, fully printable. Binding Type Binding: N/A (Digital PDF) Paper Type Paper Quality: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: 4.6L V8 DOHC (Northstar) Bore X Stroke: 93 mm x 84 mm Displacement: 4600 cc (281 cu in) Compression Ratio: 10.5:1 Horsepower Hp: 275-292 hp (depending on model year and trim) Torque Lb-Ft: 295-310 lb-ft (depending on model year and trim) Fuel System: Sequential Multi-Port Fuel Injection (SFI) Engine Variations Engine Code Example: L37 (performance variant), LD8 (standard variant) 🔧 Transmission Standard Transmission Type: 4-speed automatic Transmission Model: 4T80-E Features Shift Modes: Driver Shift Control (manual shifting capability) Fluid Specifications Fluid Type: Dexron VI Automatic Transmission Fluid (ATF) Fluid Capacity Capacity Quarts: Approximately 11.5 quarts (10.9 liters) for a full refill. 📐 Dimensions Exterior Length: Approx. 207.2 inches (5263 mm) Width: Approx. 73.6 inches (1870 mm) Height: Approx. 57.9 inches (1471 mm) Wheelbase Wheelbase Inches: 115.2 inches (2926 mm) Weights Curb Weight Lbs: Approx. 3900-4200 lbs (1769-1905 kg), depending on configuration. 🛡️ Safety Features Ratings NHTSA Front Crash Test: 5 Stars (2006 model) NHTSA Side Crash Test: 5 Stars (2006 model) IIHS Moderate Overlap Frontal: Good (2006-2011 models) Active Features Traction Control: Standard Anti-Lock Brakes: Standard Electronic Stability Control: Standard (often referred to as StabiliTrak) Passive Features Airbags: Frontal airbags, side-impact airbags, front and rear head curtain airbags. 💡 Technology Features Infotainment Audio System: Bose premium audio system available, often with CD player and auxiliary input. Navigation: Optional factory navigation system with touch-screen interface. Driver Assistance Parking Assistance: Rear parking assist sensors (Ultrasonic). Adaptive Cruise Control: Available on some models. Connectivity Bluetooth: Available on later models, often integrated with the infotainment system. Convenience Features Remote Start: Standard on many trims. Heated And Cooled Seats: Available as an option. 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles (12,000 km) or 6 months, whichever comes first, using synthetic oil. Monitor oil life system. Transmission Fluid Service: Inspect at 45,000 miles (72,000 km), service as needed. Replacement interval typically 75,000-100,000 miles (120,000-160,000 km). Spark Plug Replacement: Platinum-tipped spark plugs typically have a 100,000 mile (160,000 km) replacement interval. Fluid Specifications Engine Oil Type: SAE 5W-30 Synthetic (API SN or higher) Coolant Type: GM Super Coolant (Blue, GMW3420) Brake Fluid Type: DOT 3 Known Issues Northstar Engine Issues: Head gasket failures (in earlier Northstar variants, less common in DTS), intake manifold gasket leaks, coolant leaks. Suspension Issues: Worn control arm bushings, premature wear of suspension components, issues...