🏷️ Basic Information Identification Make: Buick Model: Lucerne Model Years Covered: 2006, 2007, 2008, 2009 Platform: GM Epsilon platform (Extended) Codes Vin Code: Starts with 1G2 👋 Introduction Market Position Positioning: Full-size luxury sedan, successor to the Buick LeSabre and Park Avenue Competitive Analysis Competitors: Ford Taurus, Mercury Sable, Dodge Charger, Chevrolet Impala, Cadillac DTS (platform sibling) Key Features Design Philosophy: Emphasis on quiet ride, comfort, and spacious interior Powertrain Options: Offered with V6 and V8 engine options Manual Benefit: Enables DIY repairs, cost savings, and in-depth understanding of vehicle systems 📋 Manual Details Coverage Areas Manual Type: Factory Service Repair Manual Engine Coverage: All engine types included Model Variant Coverage: All models and trim levels Page Count Total Pages: Over 3000 Language Language: English Format File Format: PDF Compatibility: Windows, Mac, iOS (iPhone/iPad), Android 📖 Manual Coverage Systems Covered Powertrain: Engine overhaul and rebuilding, transmission removal/installation, transmission in-car servicing, timing belt service, serpentine belt routing Brakes: Brake servicing procedures, specifications Suspension Steering: Front end alignment procedures and specifications, suspension systems, U-joint and CV-joint service Electrical Electronics: Wiring diagrams, computer diagnostic trouble codes, diagnostic trouble trees, troubleshooting and diagnostics Body Chassis: Sunroof service, vacuum diagrams Climate Control: Air conditioning service and capacities Procedures Included Maintenance: Factory maintenance schedules and charts, fluid capacities, torque specifications Repair: Step-by-step instructions for simple to complicated repairs, engine rebuilding, brake servicing, transmission servicing, suspension work Diagnostics: Trouble codes, computer diagnostic codes, troubleshooting and diagnostics, engine performance analysis, diagnostic trouble tree charts Technical Depth Depth: Comprehensive factory-level information, suitable for professional mechanics and advanced DIY enthusiasts Illustrations: Hundreds of detailed illustrations and diagrams 📊 Manual Specifications File Format Document Quality: Original Adobe PDF, perfect quality, perfect printing Searchability: Fully indexed, bookmarked by topic, quick search functionality Print Options: Print entire manual or select pages Zoom Capability: Zoom in on diagrams and pictures Archiving Requirement: WinZip (or equivalent) required for extraction Binding Type Binding: N/A (Digital PDF) Paper Type Paper: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine 1 Variant: 3.8L V6 (L36/3800 Series III) Engine 1 Horsepower: 200-205 hp Engine 1 Torque: 230-235 lb-ft Performance Engine 2 Variant: 5.3L V8 (LS4 Vortec) Engine 2 Horsepower: 303 hp Engine 2 Torque: 323 lb-ft Fuel System Fuel Delivery: Sequential Port Fuel Injection (SFI) Recommended Fuel: 87 Octane Unleaded Gasoline (V6), 91 Octane Unleaded Gasoline (V8) Firing Orders 3.8L V6: 1-6-2-5-4-3 5.3L V8: 1-8-4-3-6-5-7-2 🔧 Transmission Standard Transmission Type: 4-speed automatic (4T65-E) Optional Transmission Type V8: 4-speed automatic (4T65-E HD) Features Shift Control: Driver Shift Control (with manual mode on some trims) Fluid Type Transmission Fluid: Dexron VI Automatic Transmission Fluid 📐 Dimensions Exterior Length: Approx. 203 inches Width: Approx. 73 inches Height: Approx. 58 inches Wheelbase: Approx. 116 inches Cargo Trunk Volume: Approx. 17.1 cubic feet Weights Curb Weight V6: Approx. 3600-3700 lbs Curb Weight V8: Approx. 3800-3900 lbs 🛡️ Safety Features Ratings NHTSA Front Impact: 5-star NHTSA Side Impact: 5-star IIHS Front Offset: Good Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Standard Traction Control System (TCS) Passive Features Airbags: Front airbags, side-impact airbags, available front and rear head curtain airbags Seatbelts: Pretensioning seatbelts with load limiters 💡 Technology Features Infotainment Audio System: Available Bose premium audio system, CD player, MP3 capability Navigation: Optional touch-screen navigation system Driver Assistance Parking Assist: Available Ultrasonic Rear Park Assist Remote Start: Available Remote Keyless Entry and Remote Start System Connectivity Onstar: Available OnStar system for safety and communication services 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles or 6 months (synthetic blend) Transmission Fluid Service: Inspect every 30,000 miles, replace as needed or per severe service schedule Coolant Flush: Initial flush at 150,000 miles, then every 75,000 miles thereafter Fluid Specifications Engine Oil Type: SAE 5W-30 Synthetic Blend Engine Coolant: GM P/N 12346290 (Dex-Cool) or equivalent orange coolant Brake Fluid: DOT 3 Known Issues Torque Converter Shudder: Common issue with the 4T65-E transmission, often resolved by fluid service or updated torque converter clutch. Intake Manifold Gaskets: Leaking intake manifold gaskets on the 3800 Series III V6 can occur, leading to coolant leaks. Window Regulators: Power window regulators can be a common failure point. 📚 Vehicle History Brand Heritage Buick Legacy: Long history of producing comfortable, quiet, and refined American sedans Model Evolution Lucerne Introduction: Introduced for the 2006 model year, replacing the Buick LeSabre and Park Avenue Platform Sharing: Shares its platform with the Cadillac DTS, signaling a focus on luxury and comfort Production Manufacturing Location: Detroit/Hamtramck Assembly Plant, Michigan, USA Production End Year: 2011 (discontinued) 🏆 Awards & Recognition Recognitions Jd Power Quality: Received mixed ratings in initial quality surveys, common for large sedans of its era. Manual addresses all operational aspects. Consumer Reports: Varied ratings, often highlighting comfort but sometimes mentioning reliability concerns that this manual helps mitigate through proper maintenance.