🏷️ Basic Information Identification Make: Cadillac Model: CTS Year: 2005 Generation Generation: First Generation (2003-2007) Codes Platform: GM Sigma 👋 Introduction Market Position Positioning: Luxury sport sedan offering a blend of performance, comfort, and technology, competing with established German and Japanese luxury brands. Competitive Analysis Competitors: BMW 3 Series, Mercedes-Benz C-Class, Audi A4, Lexus IS. Key Features Vehicle Highlights: Rear-wheel drive bias (available AWD), distinctive angular styling, premium interior appointments, potent V8 engine option. Manual Advantage Benefit: Offers a convenient and up-to-date alternative to older, potentially outdated printed manuals, providing instant access to OE-derived repair data. 📋 Manual Details Coverage Areas Main Coverage: Comprehensive Service and Repair Additional Coverage: Maintenance, Diagnostics, Troubleshooting, Wiring Diagrams Page Count Estimated Pages: 1500+ Manual Type Type: Digital Service and Repair Manual Software Language Language: English Format Access Format: Online Access via Web Browser (PC, Laptop, Smartphone, Tablet) Licensing: Officially Licensed, Derived from OE Materials Access Duration: 1 Year Subscription (with discounts for extensions) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical (3.6L V6, 4.6L V8), Engine control systems (ECM), Fuel system, Exhaust system, Drivetrain (RWD, AWD), Transmission (5-speed automatic) Chassis: Suspension (front strut, rear multi-link), Steering (rack and pinion), Brakes (ABS, front vented discs, rear solid discs), Wheels and tires Body And Interior: Body panels, Doors, Windows, Seats, Interior trim, HVAC system, Audio system, Lighting Electrical: Wiring diagrams, Electrical components, Powertrain control module (PCM), Body control module (BCM), Lighting circuits, Audio system wiring, Instrumentation Procedures Included Maintenance: Scheduled maintenance, Oil changes, Filter replacements, Fluid checks and changes Repair: Engine component repair/replacement, Transmission service, Brake system repairs, Suspension component replacement, Steering system diagnostics and repair, Electrical component troubleshooting and replacement Diagnostics: Diagnostic trouble code (DTC) lookup, Symptom-based troubleshooting, Component testing procedures Technical Depth Depth: Detailed step-by-step repair procedures, Exploded views, Torque specifications, Diagnostic flowcharts, Special tool recommendations 📊 Manual Specifications File Format Digital Format: Web-based platform, not a downloadable file (e.g., PDF, EXE) Print Quality Output Quality: High-resolution graphics and text suitable for on-screen viewing and potential printing of individual pages. Binding Type Binding: N/A (Digital Access) Paper Type Paper Type: N/A (Digital Access) ⚙️ Engine Specifications Primary Engine Engine Option 1: 3.6L V6 (High Feature V6 / LY7) Engine Option 2: 4.6L V8 (Northstar / LD8) Performance V6 Horsepower V6: 255 hp @ 6200 rpm Torque V6: 250 lb-ft @ 3200 rpm Performance V8 Horsepower V8: 320 hp @ 6400 rpm Torque V8: 315 lb-ft @ 4400 rpm Fuel System Fuel Delivery: Sequential Fuel Injection (SFI) Fuel Type: Premium Unleaded Gasoline (91 octane recommended) Engine Codes V6 Engine Code: LY7 V8 Engine Code: LD8 🔧 Transmission Standard Transmission Type Std: 5-speed automatic (5L40-E) Optional Transmission Type Opt: N/A for 2005 Model Year Features Transmission Features: Driver Shift Control (manual shifting capability), StabiliTrak electronic stability control system integration. 📐 Dimensions Exterior Length: 192.2 in (4882 mm) Width: 71.5 in (1816 mm) Height: 57.1 in (1450 mm) Wheelbase: 113.4 in (2880 mm) Weights Curb Weight V6: 3683 lbs (1671 kg) Curb Weight V8: 3837 lbs (1740 kg) Cargo Trunk Volume: 12.4 cu ft (351 L) 🛡️ Safety Features Ratings NHTSA Front Driver: 5 Stars NHTSA Front Passenger: 5 Stars NHTSA Side Driver: 5 Stars NHTSA Side Passenger: 5 Stars NHTSA Rollover: 4 Stars Active Features Active Safety Std: Anti-lock Braking System (ABS), Traction Control System (TCS), StabiliTrak (Electronic Stability Control). Passive Features Passive Safety Std: Front airbags, Front side-impact airbags, OnStar communications system. 💡 Technology Features Infotainment Infotainment System: Optional Bose premium audio system, CD player, available satellite radio. Driver Assistance Driver Assistance Features: StabiliTrak (standard), ABS, TCS. Optional features may include front and rear parking assist. Connectivity Connectivity Features: OnStar in-vehicle safety and communication system. 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles or 12 months, whichever comes first (using Dexos synthetic oil if applicable, or GM-spec synthetic). Air Filter Replacement: Every 30,000 miles or as needed based on inspection. Spark Plug Replacement V6: 75,000 - 100,000 miles (based on iridium-tipped plugs). Transmission Fluid Change: Every 50,000 - 100,000 miles, depending on driving conditions and fluid type (consult manual for specifics). Fluid Specifications Engine Oil V6: SAE 5W-30 Synthetic (GM spec: GMW16336) Engine Oil V8: SAE 5W-30 Synthetic (GM spec: GMW16336, or original spec for Northstar) Transmission Fluid: Dexron VI Automatic Transmission Fluid (ATF) Coolant: GM P/N 12346290 (Purple) - Dex-Cool OAT Coolant Brake Fluid: DOT 3 Known Issues Common Wear Items: Front struts/shocks, sway bar links, brake pads/rotors due to performance driving. Engine Specific Issues: Potential for timing chain guide wear in some LY7 V6 engines, oil leaks from valve cover gaskets, Northstar V8 intake manifold gaskets can leak coolant. Electrical Issues: Occasional issues with HVAC blower motor resistor, power window regulators. 📚 Vehicle History Brand Heritage Cadillac Legacy: Long history as America's premier luxury automobile manufacturer, known for innovation and refinement....