🏷️ Basic Information

Make:

Buick

Model:

Lucerne

Years Covered:

2006, 2007, 2008, 2009

Platform:

GM G-Body Platform (updated H-body for FWD)

👋 Introduction

Positioning:

Full-size luxury sedan targeted towards comfort, quietness, and a smooth ride. Positioned as a refined, American-style boulevard cruiser.

Key Competitors:

Ford Crown Victoria/Grand Marquis, Chrysler 300, Cadillac DTS (later years), Toyota Avalon, Lincoln Town Car.

Target Audience:

Drivers prioritizing comfort, quiet operation, spacious interiors, and traditional American luxury styling.

Manual Value Proposition:

Empowers owners and technicians to perform a wide range of maintenance and repair tasks, leading to significant cost savings and extended vehicle lifespan.

📋 Manual Details

Coverage Scope:

Complete Service, Repair, Maintenance, Troubleshooting, Diagnostics, Electrical Schematics, Bodywork

Page Count Estimated:

Thousands (exact count not specified, typical for comprehensive workshop manuals)

Manual Type:

Workshop Service and Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine:

3.8L V6 (L27/L36), 4.6L V8 Northstar (LD8/L37)

Transmission:

4-Speed Automatic (4T65-E, 4T65-E HD)

Drivetrain:

Front-Wheel Drive (FWD)

Brakes:

Front Disc (Vented), Rear Disc (Solid), ABS, Traction Control

Suspension:

Front MacPherson Strut, Rear Multi-link Independent

Steering:

Hydraulic Power-Assisted

Electrical System:

Charging System, Starting System, Ignition System, Lighting, Power Windows, Locks, Mirrors, Audio System, HVAC Controls

Body And Trim:

Interior Trim, Exterior Panels, Doors, Hood, Trunk, Bumpers, Glass, Weatherstripping

HVAC:

Air Conditioning, Heating, Ventilation, Climate Control

Fuel System:

Fuel Pump, Injectors, Fuel Lines, Fuel Filter, Evaporative Emission Control (EVAP)

Exhaust System:

Exhaust Manifold, Catalytic Converter, Muffler, Pipes, Oxygen Sensors

Maintenance:

Oil Changes, Filter Replacements, Fluid Top-offs, Belt Inspections/Replacements, Spark Plug Replacement, Brake Service, Tire Rotation

Repair:

Engine Overhaul/Rebuild, Transmission Overhaul/Rebuild, Suspension Component Replacement, Brake Component Replacement, Electrical Component Diagnosis and Replacement, Body Panel Repair

Troubleshooting:

Diagnostic Trouble Codes (DTCs), Symptoms-Based Troubleshooting, Electrical Circuit Analysis

Diagnostics:

On-Board Diagnostics (OBD-II) Procedures, Scan Tool Usage, System-Specific Testing

Installation:

Component Installation/Removal, Accessory Installation

Electrical Schematics:

Detailed wiring diagrams for all major vehicle systems, including engine control, lighting, power accessories, and chassis electronics.

Torque Specifications:

Precise torque values for all critical fasteners, including engine components, suspension, brakes, and chassis.

Diagnostic Trouble Codes:

Comprehensive list of DTCs with their definitions, potential causes, and diagnostic procedures.

Depth:

Comprehensive: Covers routine maintenance to full engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.

📊 Manual Specifications

File Type:

PDF

Searchability:

Searchable text within PDF for quick information retrieval

Print Capability:

Printable: Allows users to print individual pages, chapters, or the entire manual.

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine 1 Name:

3.8L V6 (Series II L36/L27)

Engine 1 Displacement:

3.8 L (231 cu in)

Engine 1 Configuration:

Naturally Aspirated, Overhead Valve (OHV), V-Configuration

Engine 1 Horsepower:

~205 hp @ 5200 rpm

Engine 1 Torque:

~230 lb-ft @ 4000 rpm

Engine 2 Name:

4.6L V8 Northstar (LD8/L37)

Engine 2 Displacement:

4.6 L (281 cu in)

Engine 2 Configuration:

Naturally Aspirated, Dual Overhead Cam (DOHC), V-Configuration, 32 Valves

Engine 2 Horsepower:

~275-292 hp @ 6000 rpm (depending on specific L37/LD8 variant)

Engine 2 Torque:

~295-315 lb-ft @ 4400 rpm (depending on specific L37/LD8 variant)

Fuel Delivery:

Multi-Port Fuel Injection (MPFI)

Fuel Type:

Unleaded Gasoline

🔧 Transmission

Transmission Type:

4-Speed Automatic

Transmission Model:

4T65-E

Transmission Type Optional:

4-Speed Automatic (Heavy Duty)

Transmission Model Optional:

4T65-E HD (typically with the Northstar V8)

Transmission Control:

Electronic, with Driver Shift Control (PRNDL display)

📐 Dimensions

Length:

~203.7 inches

Width:

~72.4 inches

Height:

~57.9 inches

Wheelbase:

~116.0 inches

Curb Weight V6:

~3,700 - 3,800 lbs

Curb Weight V8:

~3,900 - 4,000 lbs

🛡️ Safety Features

NHTSA Driver Front Impact:

5-Star (Good)

NHTSA Passenger Front Impact:

5-Star (Good)

NHTSA Driver Side Impact:

4-Star (Acceptable)

NHTSA Passenger Side Impact:

5-Star (Good)

Traction Control:

Standard (TCS)

Anti Lock Brakes:

Standard (ABS)

Electronic Stability Control:

Optional (StabiliTrak on some models)

Airbags Front:

Driver and Passenger Frontal Airbags

Airbags Side:

Optional Front Side-Impact Airbags

Seatbelts:

Three-point active seatbelts with pretensioners

💡 Technology Features

Audio System:

Standard AM/FM stereo with CD player. Optional Bose premium audio system, satellite radio (XM Radio).

Navigation:

Optional factory-installed navigation system.

Parking Assist:

Optional Ultrasonic Rear Park Assist.

Onstar:

Available OnStar telematics system.

🔧 Maintenance

Oil Change Interval:

Every 7,500 miles or 6 months, whichever comes first, using synthetic or synthetic blend oil.

Tire Rotation Interval:

Every 7,500 miles

Spark Plug Replacement V6:

Approx. 100,000 miles (if using original type platinum plugs)

Spark Plug Replacement V8:

Approx. 100,000 miles (if using original type platinum plugs)

Engine Oil V6:

SAE 3.8L V6: 5W-30 (API SM or higher)

Engine Oil V8:

4.6L V8 Northstar: 5W-30 (API SM or higher)

Transmission Fluid:

Dexron VI Automatic Transmission Fluid (ATF)

Coolant:

GM U-Type or equivalent Orange/Pink Long-Life Antifreeze/Coolant (50/50 mix with distilled water)

Brake Fluid:

DOT 3 or DOT 4 Hydraulic Brake Fluid

Northstar V8 Intake Manifold Gaskets:

Leaking intake manifold gaskets are a common issue, especially on earlier Northstar engines, leading to coolant loss.

Transmission Clunking:

Some 4T65-E transmissions can develop a clunking noise during shifting or when engaging gears, often related to worn U-joints or transmission mounts.

Power Steering Leaks:

Leaking power steering hoses or pump can occur over time.

Window Regulators:

Power window regulators can fail, leading to windows not operating.

📚 Vehicle History

Buick Legacy:

Buick has a long-standing history of producing comfortable, well-appointed, and reliable American vehicles, often appealing to a more mature demographic.

Lucerne Lineage:

The Lucerne replaced the Buick LeSabre and Park Avenue, continuing Buick's tradition of large, comfortable sedans. It was based on an updated version of the GM H-body platform.

Manufacturing Location:

Detroit/Hamtramck Assembly Plant, Michigan, USA

Production Span For Model:

2006-2011

🏆 Awards & Recognition

Initial Reception:

Generally received positive reviews for its comfortable ride, quiet cabin, and spacious interior, aligning with Buick's brand identity. Some criticized its somewhat dated styling and handling compared to European competitors.

Fuel Economy V6:

EPA Estimated: ~18 MPG City / 28 MPG Highway

Fuel Economy V8:

EPA Estimated: ~17 MPG City / 25 MPG Highway