The 2008 Buick Lucerne is a full-size luxury sedan engineered to provide a comfortable and quiet driving experience, reflecting Buick's legacy of refined American motoring. Built on the GM Epsilon II platform, shared with models like the Cadillac DTS and Chevrolet Impala, the Lucerne offers a choice between a robust 3.8L V6 engine producing 205 hp and 230 lb-ft of torque, or a more powerful 4.6L Northstar V8 generating 275 hp and 295 lb-ft of torque. Its spacious interior, with 106.3 cubic feet of passenger volume, and a smooth ride contribute to its positioning as a flagship sedan focused on comfort and traditional luxury, making it a compelling option for those seeking a serene and well-appointed vehicle. This comprehensive service and repair manual provides detailed technical information for the 2008 Buick Lucerne. It covers a wide array of systems, including the 3.8L V6 and 4.6L V8 engines, 4-speed automatic transmissions, brakes, steering, suspension, electrical systems, HVAC, body, interior, and driver information systems. The manual details essential maintenance procedures, diagnostic troubleshooting, component repair, and calibration processes, offering factory-level data to assist owners and technicians in maintaining and repairing the vehicle effectively. Its text-searchable format ensures quick access to information for efficient vehicle upkeep. 🏷️ Basic Information Identification Make: Buick Model: Lucerne Year: 2008 Codes Vehicle Platform: GM Epsilon II (shared with Cadillac DTS, Chevrolet Impala) 👋 Introduction Market Position Segment: Full-size Luxury Sedan Competitive Analysis Competitors: Chrysler 300, Dodge Charger, Ford Five Hundred/Taurus, Toyota Avalon, Mercury Grand Marquis. Key Features Vehicle Positioning: Flagship sedan offering comfort, quiet ride, and traditional American luxury. Manual Value Proposition: Provides factory-level diagnostic and repair data for do-it-yourself enthusiasts and professional technicians, saving significant repair costs. 📋 Manual Details Coverage Areas Manual Type: Service and Repair Manual Software Language: English Format: PDF Download (Online Access via Web Browser) License Type: Officially Licensed (OE derived) Access Duration: 1 Year (with discounts for extensions) 📖 Manual Coverage Systems Covered Engine: 3.8L V6 (VIN L), 4.6L V8 Northstar (VIN Y) Transmission: 4T80-E (for 4.6L V8), 4T65-E (for 3.8L V6) Brakes: Front Disc, Rear Disc (ABS, Traction Control, StabiliTrak) Steering: Hydraulic Power Steering, Steering Column Components Suspension: Front MacPherson Strut, Rear Independent Multi-link Electrical System: Wiring Diagrams, Fuses, Relays, Battery, Charging System, Starting System HVAC: Air Conditioning, Heating, Ventilation, Climate Control System Body And Frame: Body Panels, Doors, Hood, Trunk, Bumpers, Chassis Components Interior: Seating, Trim Panels, Dashboard, Headliner, Interior Lighting Driver Information System: Instrument Cluster, Gauges, Warning Lights, Driver Information Center (DIC) Safety Systems: Airbags, Seatbelt Pretensioners, Body Control Module (BCM) Functions Procedures Included Maintenance: Oil Changes, Filter Replacements, Fluid Checks and Top-offs, Belt Inspections Troubleshooting: Diagnostic Trouble Codes (DTCs), Symptom-based Diagnostics, Electrical Circuit Testing Repair: Component Replacement (e.g., Brakes, Shocks, Alternator, Starter), Engine Diagnostics and Repair, Transmission Service Diagnostics: OBD-II System Diagnostics, ECM/PCM Functionality, Sensor Testing Calibration And Programming: TPMS Sensor Initialization, Steering Angle Sensor Calibration Technical Depth Depth: Comprehensive; covers everything from routine maintenance to major component overhauls and electrical system diagnostics. Diagnostic Tools: Specifies diagnostic scan tool procedures and expected values for various sensors and modules. 📊 Manual Specifications File Format Format: PDF Searchability: Text-searchable PDF for quick information retrieval. Print Quality Printability: Printable pages for offline reference. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Compatibility Device Compatibility: Compatible with PC, Laptop, Smartphone, Tablet via web browser and internet connection. ⚙️ Engine Specifications Primary Engine Engine Option 1: 3.8L (3800 Series III) V6 OHV (Naturally Aspirated) Engine Option 2: 4.6L (Northstar) V8 DOHC VVT (Naturally Aspirated) Performance 3.8L V6 Horsepower: 205 hp @ 5200 rpm 3.8L V6 Torque: 230 lb-ft @ 4000 rpm 4.6L V8 Horsepower: 275 hp @ 6000 rpm 4.6L V8 Torque: 295 lb-ft @ 4400 rpm Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (MPI) Recommended Fuel: 87 Octane Unleaded (3.8L), 87 Octane Unleaded Recommended (4.6L) Engine Management ECU: ECM (Engine Control Module) / PCM (Powertrain Control Module) 🔧 Transmission Standard Transmission Type: 4-Speed Automatic (4T65-E for 3.8L V6, 4T80-E for 4.6L V8) Optional Optional Transmission: N/A (Only Automatic Transmissions Offered) Features Transmission Control: Electronic Controls with Performance Algorithm Shifting (PAS) Fluid Specifications Transmission Fluid Type: Dexron VI Automatic Transmission Fluid (ATF) 📐 Dimensions Exterior Length: 200.3 inches Width: 72.7 inches Height: 58.1 inches Wheelbase: 115.1 inches Interior Passenger Volume: 106.3 cu ft Cargo Trunk Volume: 15.1 cu ft Weights Curb Weight 3.8L: 3757 lbs Curb Weight 4.6L: 3905 lbs 🛡️ Safety Features Ratings NHTSA Front Driver Impact: 5-Star NHTSA Front Passenger Impact: 5-Star NHTSA Side Driver Impact: 5-Star NHTSA Side Passenger Impact: 4-Star NHTSA Rollover: 4-Star Active Features ABS: Standard (4-Wheel Anti-lock Braking System) Traction Control: Standard (Traction Control System - TCS) Stability Control: Standard (StabiliTrak Electronic Stability Control) Passive Features Airbags: Frontal, Side-Impact, Curtain (Optional) Seatbelts: 3-Point Front and Rear Seatbelts, Pretensioners 💡 Technology...