🏷️ Basic Information Identification Make: Buick Model: Lucerne Year: 2007 Generation Generation: Second Generation Codes Platform: GM G-body (GMT199) 👋 Introduction Market Position Vehicle Segment: Full-size Luxury Sedan Competitive Analysis Competitors 2007: Ford Crown Victoria/Mercury Grand Marquis, Chrysler 300, Toyota Avalon, Lincoln Town Car Key Features Distinctive Attributes: Comfort-oriented ride, spacious interior, available Northstar V8 engine, QuietTuning technology. 📋 Manual Details Coverage Areas Trim Levels: CX, CXL, Super Engine Options Covered: 3.8L V6 (L26), 4.6L V8 (Northstar LD8) Page Count Estimated Page Count: Estimated 2000-3000+ pages (typical for factory service manuals) Manual Type Manual Type: Factory Service Manual / Repair Manual Language Language: English Format Digital Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine (3.8L V6, 4.6L V8), Fuel System, Emission Control, Cooling System, Lubrication System, Ignition System, Starting & Charging System, Automatic Transmission (4T65-E) Chassis: Suspension (Front & Rear), Steering (Power), Brakes (Front & Rear Disc, ABS), Wheels & Tires, Parking Brake Electrical And Body: Body Control Module (BCM), Powertrain Control Module (PCM), Instrument Cluster, Lighting, Wipers & Washers, Horn, Door Locks, Power Windows, Mirrors, Seats, Air Conditioning (HVAC), Supplemental Restraint System (SRS - Airbags, Seatbelts), Cruise Control, Audio/Visual Systems, Multiplex/CAN Communication, Engine Immobilizer, Keyless Entry Procedures Included Maintenance: Routine maintenance, fluid changes, filter replacements, tune-ups Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs), symptom-based diagnostics Repair And Rebuild: Component removal, installation, disassembly, assembly, and overhaul procedures for all major systems Technical Depth Depth Of Coverage: Factory-level, comprehensive detail including step-by-step instructions, diagrams, illustrations, and wiring schematics. 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Fully printable, with ability to enlarge images and diagrams. Binding Type Binding Type: N/A (Digital PDF format) Paper Type Paper Type: N/A (Digital PDF format) ⚙️ Engine Specifications Primary Engine Engine 1: 3.8L (3800 Series III) V6 (L26) Engine 1 Horsepower: 205 hp @ 5200 rpm Engine 1 Torque: 230 lb-ft @ 4000 rpm Optional Engine Engine 2: 4.6L Northstar V8 (LD8) Engine 2 Horsepower: 275 hp @ 6000 rpm Engine 2 Torque: 295 lb-ft @ 4400 rpm Fuel System Fuel Delivery: Sequential Fuel Injection (SFI) 🔧 Transmission Standard Transmission Type: 4-speed Automatic (4T65-E) Optional Optional Transmission: N/A for 2007 model year Features Transmission Features: Driver Shift Control (manual shift mode) 📐 Dimensions Exterior Length: 203.4 inches Width: 73.0 inches Height: 58.3 inches Wheelbase: 116.0 inches Weights Curb Weight Min: 3,700 lbs (approx. for 3.8L V6) Curb Weight Max: 3,950 lbs (approx. for 4.6L V8 Super) 🛡️ Safety Features Ratings NHTSA Front Impact Driver: 5-Star NHTSA Front Impact Passenger: 5-Star IIHS Front Offset Bm: Good Active Features Traction Control: Standard (All models) Stability Control: Standard on CXL and Super models, Optional on CX ABS: Standard (4-wheel disc) Passive Features Airbags: Frontal, Side-impact (front and rear outboard), available front-seat mounted side-impact airbags. Seatbelts: Front pretensioners, load limiters. 💡 Technology Features Infotainment Audio System: Standard AM/FM stereo with CD player, optional Bose premium sound system, optional touchscreen navigation system. Driver Assistance Parking Assist: Available rear parking assist sensors. Cruise Control: Standard cruise control, available adaptive cruise control on Super models. Connectivity Onstar: Available OnStar communication system. Comfort Features Heated Seats: Available heated front and rear seats. Memory Seats: Available driver's seat memory. 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles or 6 months, using Dexos approved synthetic oil (check manual for specific recommendations). Engine Air Filter: Replace every 45,000 miles or as needed based on inspection. Spark Plugs 3.8L: Replace every 100,000 miles (iridium type). Spark Plugs 4.6L: Replace every 100,000 miles (iridium type). Fluid Specifications Engine Oil 3.8L: SAE 3.5W-30 Synthetic (Check manual for specific GM specs, likely meeting GM6094M) Engine Oil 4.6L: SAE 4.5W-30 Synthetic (Check manual for specific GM specs, likely meeting GM6094M) Transmission Fluid: Dexron VI Automatic Transmission Fluid (ATF) Coolant: GM-specific orange coolant (Dex-Cool) - 50/50 mixture with distilled water. Known Issues Common Issues 3.8L: Lower intake manifold gasket leaks (pre-2005 models, less common on 3.8L Series III), occasional fuel pump issues. Common Issues 4.6L: Northstar engine specific issues can include coolant leaks from head gaskets or oil cooler lines, intermittent power steering pump failures. Suspension Issues: Front strut mount wear, rear coil spring issues (sagging). Electrical Issues: Window regulator failures, HVAC blower motor resistor failure. 📚 Vehicle History Brand Heritage Buick Legacy: Buick has a long history of producing comfortable, refined, and well-equipped American sedans. Model Evolution Lucerne Introduction: The Lucerne replaced the Park Avenue and LeSabre as Buick's flagship sedan in 2006. Platform Sharing: Based on the GM G-body platform, shared with other GM sedans of the era. Production Manufacturing Location: Detroit/Hamtramck Assembly, Michigan, USA 🏆 Awards & Recognition Recognitions Jd Power Initial Quality: Typically rated average to above average in initial quality for its segment in its early years. Consumer Reports: Consumer Reports ratings varied, with some praise for comfort and V8...