Segment:
Full-size Luxury Sedan
Target Demographic:
Buyers seeking comfortable, spacious, and refined American luxury
Key Competitors:
Lincoln Town Car, Cadillac DTS, Chrysler 300
Luxury Appointments:
Spacious interior, quiet ride, available premium features
Powertrain Options:
V6 and V8 engine choices offering a balance of power and comfort
Cost Savings:
Enables DIY repairs, significantly reducing labor costs
Ease Of Use:
Easy-to-follow step-by-step instructions and accompanying pictures
Accessibility:
Downloadable to multiple devices (PC, Mac, tablet, smartphone)
Engine:
Complete diagnosis, overhaul, timing, cooling, lubrication, fuel injection, emissions control, ignition
Transmission:
Automatic transmission service, overhaul, diagnosis, fluid changes
Drivetrain:
Front-wheel drive components, axles, CV joints
Suspension:
Front and rear suspension systems, shock absorbers, struts, control arms, ball joints, bushings
Steering:
Power steering system diagnosis and repair, steering column, tie rods
Brakes:
Hydraulic system, ABS, brake pads, rotors, calipers, parking brake
Electrical System:
Battery, charging system, starting system, lighting, fuses, relays, wiring diagrams
HVAC:
Air conditioning, heating, climate control system diagnosis and repair
Body And Chassis:
Body panel removal/installation, interior trim, glass, doors, hood, trunk
Infotainment And Comfort:
Audio system, navigation (if equipped), power accessories, seats
Routine Maintenance:
Oil change, filter replacement, fluid checks and top-offs, tire rotation, spark plug replacement
Diagnostics:
Troubleshooting guides, diagnostic trouble codes (DTCs), symptom-based diagnosis
Repair And Overhaul:
Engine internal component repair, transmission rebuild, brake caliper replacement, suspension component overhaul
Electrical Diagnostics:
Wiring harness repair, component testing, sensor diagnosis
Climate Control Repair:
Refrigerant handling, component replacement (compressor, condenser, evaporator)
Body Repair:
Panel alignment, door mechanism adjustment, glass replacement
Safety Systems:
Airbag system precautions and service, ABS component repair
Depth:
Comprehensive, covering basic maintenance to advanced component overhaul and diagnostics
NHTSA Frontal Crash Rating Driver:
5-Star
NHTSA Frontal Crash Rating Passenger:
5-Star
NHTSA Side Impact Rating Front Seat:
5-Star
NHTSA Side Impact Rating Rear Seat:
5-Star
IIHS Roof Strength Rating:
Good
ABS:
Standard Anti-lock Braking System (ABS)
Traction Control:
Standard Traction Control System (TCS)
Stability Control:
Standard StabiliTrak Electronic Stability Control
Airbags:
Frontal airbags, front side-impact airbags, side curtain airbags
Oil Change Interval:
Every 7,500 miles or 6 months with synthetic oil, or as indicated by oil life monitor
Engine Air Filter:
Inspect every 30,000 miles, replace as needed
Spark Plugs V6:
Platinum-tipped, replace at 100,000 miles (GM P/N 12621259 or equivalent)
Spark Plugs V8:
Platinum-tipped, replace at 100,000 miles (GM P/N 12568191 or equivalent)
Engine Oil V6:
SAE 5W-30, Dexos1™ compliant (GM P/N 19370001 or equivalent)
Engine Oil V8:
SAE 5W-30, Dexos1™ compliant (GM P/N 19370001 or equivalent)
Transmission Fluid:
Dexron VI Automatic Transmission Fluid (ATF) (GM P/N 88863400 or equivalent)
Coolant:
GM P/N 88862585 (Orange) Long Life Antifreeze/Coolant, 50/50 mix
Brake Fluid:
DOT 3 Premium Heavy Duty Brake Fluid (GM P/N 12377971 or equivalent)
Common Issues Cooling:
Leaking coolant reservoir, thermostat issues, water pump leaks (particularly with the Northstar V8)
Common Issues Electrical:
Faulty power steering assist motor, infotainment system glitches, intermittent electrical connectors
Common Issues Suspension:
Worn front struts, control arm bushings
Buick Legacy:
Long history of producing comfortable and stylish American sedans
Lucerne Introduction:
Introduced for the 2006 model year, replacing the LeSabre and Park Avenue.
Lucerne Generation 1:
GM G platform, later transitioned to Epsilon II for specific components and styling cues.
Production Years:
2006-2011
Manufacturing Location:
Detroit/Hamtramck Assembly Plant, Michigan, USA
