🏷️ Basic Information Identification Make: Buick Model: Lucerne Year Range Covered: 2006-2009 Codes Platform: GM G platform (long-wheelbase) 👋 Introduction Market Position Segment: Full-Size Sedan Target Audience: Luxury Sedan Buyers, Fleet Operators, Do-It-Yourself Enthusiasts, Professional Mechanics Competitive Analysis Key Competitors: Lincoln Town Car, Cadillac DTS, Chrysler 300, Toyota Avalon Key Features Vehicle Attributes: Comfort-oriented, spacious interior, quiet ride, V6 and V8 engine options, front-wheel drive (standard), all-wheel drive (optional on some trims) Powertrain Options: Choice of a robust 3.8L V6 (naturally aspirated or supercharged) or a refined 4.6L Northstar V8, offering a balance of performance and smooth operation. 📋 Manual Details Coverage Areas Primary Coverage: Factory Service Repair Secondary Coverage: Maintenance, Diagnostics, Troubleshooting, Repair, Overhaul Page Count Estimated Page Count: 2000+ Manual Type Type: Comprehensive Service and Repair Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine, Fuel System, Ignition System, Starting & Charging System, Cooling System, Lubrication System, Emission Control System, Automatic Transmission (4T80-E, 4T65-E) Chassis: Brake System (including ABS, Traction Control), Suspension (Front & Rear), Steering System (including Power Steering), Wheel & Tire Assembly, Drive Shaft, Axles, Differential Body And Electrical: Climate Control (HVAC), Air Conditioning, Electrical System, Multiplex/CAN Communication, Restraint System (SRS), Seat Belts, Engine Immobilizer, Cruise Control, Wiper & Washer System, Door Locks, Meter & Audio/Visual Systems, Horn, Windshield/Glass/Mirrors, Instrument Panel, Seats, Engine Hood/Doors, Exterior & Interior Trim, Lighting System Procedures Included Maintenance: Scheduled Maintenance, Fluid Checks & Changes, Filter Replacements, Tune-up Procedures Diagnostics Troubleshooting: Component Testing, Symptom-based Diagnostics, Diagnostic Trouble Codes (DTCs) Interpretation, Electrical System Troubleshooting, Wiring Diagrams Repair Overhaul: Engine Rebuild, Transmission Overhaul, Brake System Repair, Suspension Component Replacement, Steering System Service, Electrical Component Replacement, Body Panel Repair & Replacement Body And Paint: Door and panel alignment, trim removal and installation, bumper repair, glass replacement. Interior Systems: Seat removal and repair, headliner replacement, dashboard disassembly, airbag system servicing (with specific safety precautions). Technical Depth Depth: Factory Level - Complete Disassembly and Reassembly, Detailed Specifications, Torque Values, Special Tool Requirements Diagnostic Tools: References to GM's official diagnostic scan tools (e.g., Tech 2) and common OBD-II diagnostic procedures. 📊 Manual Specifications File Format Format: PDF Searchability: PDF format allows for text searching of keywords and terms, greatly improving efficiency. Print Quality Printability: Fully Printable (individual pages or entire manual) Binding Type Binding Type Digital: N/A (Digital Download) Paper Type Paper Type Digital: N/A (Digital Download) Software Requirements Required Software: Adobe PDF Reader, WinZip or equivalent for decompression ⚙️ Engine Specifications Primary Engine Engine 1: 3.8L (3800) Series III V6 (L36/L32) Engine 1 Hp: 205 hp @ 5200 rpm (L36), 240 hp @ 5200 rpm (L32 Supercharged) Engine 1 Torque: 230 lb-ft @ 4000 rpm (L36), 285 lb-ft @ 3600 rpm (L32 Supercharged) Engine 2: 4.6L Northstar V8 (LD8/LPL) Engine 2 Hp: 275 hp @ 6000 rpm (LD8), 292 hp @ 6300 rpm (LPL) Engine 2 Torque: 295 lb-ft @ 4400 rpm (LD8), 309 lb-ft @ 4500 rpm (LPL) Performance Fuel Type: Unleaded Gasoline Fuel System Injection Type: Sequential Port Fuel Injection (SFI) Engine Management System: GM ECM (Engine Control Module) 🔧 Transmission Standard Transmission Type: 4-Speed Automatic (4T65-E) Optional Transmission Type Optional: 4-Speed Automatic (4T80-E - for V8 models) Features Transmission Features: Driver Shift Control (DSC), Tow/Haul Mode (on some models) 📐 Dimensions Exterior Length: 200.1 inches Width: 72.9 inches Height: 57.2 inches Wheelbase: 116.0 inches Weights Curb Weight Min: 3720 lbs (V6 FWD) Curb Weight Max: 4070 lbs (V8 AWD) 🛡️ Safety Features Ratings NHTSA Front Impact Driver: 5-Star NHTSA Front Impact Passenger: 5-Star NHTSA Side Impact Front Passenger: 5-Star NHTSA Side Impact Rear Passenger: 5-Star IIHS Front Offset Rating: Good IIHS Side Impact Rating: Good Active Features Active Safety: Anti-lock Braking System (ABS), Traction Control System (TCS), Available StabiliTrak (Electronic Stability Control) Passive Features Passive Safety: Dual-stage Front Airbags, Front Side-Impact Airbags, Available Curtain Side Airbags, Active Head Restraints 💡 Technology Features Infotainment Infotainment Features: Available touchscreen navigation system, AM/FM/CD/MP3 audio system, available Bose premium sound system, auxiliary audio input Driver Assistance Driver Assistance Features: Available Ultrasonic Rear Parking Assist, available Backup Camera, available StabiliTrak Connectivity Connectivity Features: Available OnStar communications system 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles or 6 months (using synthetic blend or full synthetic oil) Tire Rotation: Every 7,500 miles Coolant Flush: Every 5 years or 100,000 miles (DEX-COOL) Spark Plug Replacement: V6: Typically 100,000 miles. V8 Northstar: Varies, consult manual for specific model year and engine variant. Fluid Specifications Engine Oil Type: SAE 5W-30 (API Certified, Dexos compliant if applicable for newer standards) Transmission Fluid Type: Dexron VI (for 4T65-E and 4T80-E) Coolant Type: GM P/N 12346290 or 89022783 (Orange DEX-COOL, 50/50 mix with distilled water) Known Issues Common Issues V6: Intake manifold gasket leaks (Series II 3800), coolant leaks, oil pressure sensor issues, motor mounts (especially on supercharged models)...