Positioning:
        
        
            Premium full-size sedan targeted at comfort and luxury
        
     
    
    
        
            Key Competitors:
        
        
            Ford Five Hundred/Taurus, Chrysler 300, Toyota Avalon, Nissan Maxima
        
     
    
    
        
            Value Proposition:
        
        
            Provides extensive factory-derived repair information for DIYers and professionals, offering significant cost savings compared to dealership repairs.
        
     
    
        
            Convenience:
        
        
            Instant online access, eliminating the need for bulky printed manuals.
        
     
 
    
    
    
        
            Primary Coverage:
        
        
            Comprehensive Service and Repair
        
     
    
        
            Diagnostic Coverage:
        
        
            Extensive diagnostic procedures and troubleshooting
        
     
    
    
        
            Estimated Page Count:
        
        
            Likely several thousand pages in full OE equivalent
        
     
    
    
        
            Type:
        
        
            Service and Repair Manual Software
        
     
    
    
    
    
        
            Format:
        
        
            PDF Download (accessible via web browser)
        
     
 
    
    
    
        
            Powertrain:
        
        
            Engine mechanical, engine performance, fuel system, exhaust system, cooling system, lubrication system, emissions control
        
     
    
        
            Drivetrain:
        
        
            Transmission (automatic), torque converter, drive axles, differential
        
     
    
        
            Chassis:
        
        
            Brakes (hydraulic, ABS, EBD, Traction Control), suspension (front and rear), steering system, wheels and tires
        
     
    
        
            Electrical:
        
        
            Battery, charging system, starting system, lighting, instrument cluster, body control modules, infotainment, power accessories, wiring diagrams
        
     
    
        
            Body And Interior:
        
        
            Body panels, doors, windows, seats, HVAC system, interior trim, safety restraints
        
     
    
    
        
            Maintenance:
        
        
            Scheduled maintenance, fluid changes, filter replacements, inspections
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic flowcharts, symptom-based troubleshooting, electrical diagnostics
        
     
    
        
            Repair:
        
        
            Component removal and installation, component overhaul, adjustment procedures
        
     
    
        
            Technical Adjustments:
        
        
            Wheel alignment specifications, tire pressure recommendations, ignition timing (if applicable)
        
     
    
    
        
            Depth:
        
        
            Factory-level detail for DIY mechanics and professional technicians
        
     
    
        
            Diagnostic Tools:
        
        
            Information relevant to using OBD-II scanners and advanced diagnostic equipment
        
     
 
    
    
    
    
        
            Searchability:
        
        
            Searchable text for quick information retrieval
        
     
    
    
        
            Print Quality:
        
        
            High-resolution, suitable for printing individual pages or sections
        
     
    
    
        
            Binding Type:
        
        
            Not applicable (digital download)
        
     
    
    
        
            Paper Type:
        
        
            Not applicable (digital download)
        
     
    
    
        
            Access Duration:
        
        
            1-year subscription with renewal discounts available
        
     
    
    
        
            Device Compatibility:
        
        
            PC, Laptop, Smartphone, Tablet (via web browser)
        
     
 
    
    
    
        
            Engine Code:
        
        
            3.8L V6 (L36)
        
     
    
        
            Displacement:
        
        
            3.8 L (230.5 cu in)
        
     
    
        
            Configuration:
        
        
            Naturally Aspirated V6
        
     
    
        
            Bore X Stroke:
        
        
            3.80 in x 3.40 in (96.5 mm x 86.4 mm)
        
     
    
    
        
            Horsepower:
        
        
            197 hp @ 5200 rpm
        
     
    
        
            Torque:
        
        
            227 lb-ft @ 3200 rpm
        
     
    
    
        
            Induction:
        
        
            Sequential Port Fuel Injection (SFI)
        
     
    
        
            Fuel Type:
        
        
            Unleaded Gasoline
        
     
    
    
        
            0-60 Mph:
        
        
            Approx. 8.5 - 9.5 seconds (varies with trim and configuration)
        
     
    
    
        
            Optional Engine Code:
        
        
            4.6L V8 (L37/L80/L82)
        
     
    
    
        
            Optional Displacement:
        
        
            4.6 L (281 cu in)
        
     
    
        
            Optional Configuration:
        
        
            Northstar V8 (various outputs)
        
     
    
        
            Optional Horsepower:
        
        
            292-303 hp (depending on specific V8 variant)
        
     
    
        
            Optional Torque:
        
        
            290-300 lb-ft (depending on specific V8 variant)
        
     
 
    
    
    
        
            Length:
        
        
            200.0 inches (5080 mm)
        
     
    
        
            Width:
        
        
            73.7 inches (1872 mm)
        
     
    
        
            Height:
        
        
            58.2 inches (1478 mm)
        
     
    
        
            Wheelbase:
        
        
            112.4 inches (2855 mm)
        
     
    
        
            Front Track:
        
        
            61.6 inches (1565 mm)
        
     
    
        
            Rear Track:
        
        
            61.6 inches (1565 mm)
        
     
    
    
        
            Curb Weight:
        
        
            Approx. 3,700 - 4,000 lbs (1678 - 1814 kg) depending on engine and trim
        
     
    
        
            Gross Vehicle Weight Rating Gvwr:
        
        
            Approx. 5,000 - 5,200 lbs (2268 - 2359 kg)
        
     
 
    
    
    
        
            NHTSA Front Impact Driver:
        
        
            5-Star
        
     
    
        
            NHTSA Front Impact Passenger:
        
        
            5-Star
        
     
    
        
            IIHS Front Offset Crash Rating:
        
        
            Good (for comparable models)
        
     
    
    
        
            Traction Control:
        
        
            Standard
        
     
    
        
            Electronic Stability Control Esc:
        
        
            Standard (StabiliTrak)
        
     
    
        
            Antilock Braking System ABS:
        
        
            Standard
        
     
    
    
        
            Airbags:
        
        
            Frontal airbags, front side-impact airbags, side curtain airbags
        
     
    
        
            Seatbelts:
        
        
            Three-point seatbelts with pretensioners
        
     
    
        
            Child Seat Anchors:
        
        
            LATCH system
        
     
 
    
    
    
        
            Audio System:
        
        
            Available Bose premium audio system, CD player, AM/FM radio, MP3 capability
        
     
    
        
            Navigation:
        
        
            Optional factory navigation system
        
     
    
    
        
            Parking Sensors:
        
        
            Available rear parking assist
        
     
    
    
    
        
            Onstar:
        
        
            Available with subscription service
        
     
    
    
        
            Heated Seats:
        
        
            Available heated front seats
        
     
    
        
            Ventilated Seats:
        
        
            Available ventilated front seats (on higher trims)
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Every 7,500 miles (12,000 km) or 6 months, or based on oil life monitoring system
        
     
    
        
            Engine Air Filter Replacement:
        
        
            Every 30,000 miles (48,000 km) or as needed
        
     
    
        
            Cabin Air Filter Replacement:
        
        
            Every 15,000 miles (24,000 km) or annually
        
     
    
        
            Spark Plug Replacement:
        
        
            7.5L V6: 100,000 miles (160,000 km). 4.6L V8: 100,000 miles (160,000 km) (use recommended plugs)
        
     
    
    
        
            Engine Oil Type:
        
        
            SAE 5W-30 (API Certified)
        
     
    
        
            Engine Oil Capacity:
        
        
            Approx. 4.5 quarts (4.3 L) for 3.8L V6, 4.5 quarts (4.3 L) for 4.6L V8
        
     
    
        
            Coolant Type:
        
        
            Dex-Cool (GM 6042M) - Orange long-life
        
     
    
        
            Transmission Fluid Type:
        
        
            Dexron VI Automatic Transmission Fluid
        
     
    
    
        
            Common Problems:
        
        
            Ignition coil failures, wheel bearing noise, occasional transmission issues, HVAC blend door actuator failures, potential for oil leaks from Northstar V8 (older generations), front suspension component wear.
        
     
 
    
    
    
        
            Buick Legacy:
        
        
            Known for comfortable, quiet, and refined American sedans with a focus on luxury and value.
        
     
    
    
        
            Lucerne Introduction:
        
        
            Replaced the Buick Park Avenue and LeSabre, serving as Buick's flagship sedan for a period.
        
     
    
        
            Platform Origin:
        
        
            Based on GM's front-wheel-drive G-Body platform, which also underpinned vehicles like the Cadillac DTS.
        
     
    
    
        
            Production Years:
        
        
            2006-2011
        
     
    
        
            Manufacturing Location:
        
        
            Detroit-Hamtramck Assembly Plant, Michigan, USA