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Introduction
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Market Position
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Market Segment:
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Mid-size luxury sedan.
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Target Audience:
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Consumers seeking a comfortable, refined, and well-equipped American luxury sedan.
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Competitive Analysis
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Key Competitors:
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Acura TL, Lexus ES, BMW 5 Series (entry-level trims), Mercedes-Benz E-Class (entry-level trims).
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Key Features
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Design:
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Elegant styling with Buick's signature waterfall grille and sweeping body lines.
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Interior:
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Spacious and upscale cabin with quality materials and comfortable seating.
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Powertrain Options:
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Available with efficient V6 engines, offering a blend of performance and refinement.
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Ride Quality:
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Focus on a smooth and quiet ride, characteristic of the Buick brand.
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Manual Advantage
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Convenience:
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Instant online access, eliminating the need for physical manuals and providing easy searching.
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Cost Effectiveness:
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Significant cost savings compared to dealership service or printed manuals, empowering DIY repairs.
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Information Accuracy:
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Licensed OE (Original Equipment) materials ensure accurate and up-to-date repair procedures.
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Manual Coverage
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Systems Covered
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Engine Mechanical:
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Complete overhaul, diagnostics, repair of all engine components.
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Engine Electrical:
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Ignition system, fuel injection, sensors, actuators, PCM diagnostics.
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Transmission Manual:
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Repair and overhaul of manual transmission components.
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Transmission Automatic:
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Diagnostics, fluid service, repair of automatic transmission components.
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Drivetrain:
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Front-wheel drive, all-wheel drive, axles, driveshafts, differentials.
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Brakes:
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Hydraulic system, ABS, traction control, brake pad/rotor replacement, caliper service.
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Suspension:
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Front and rear suspension, shock absorbers, struts, control arms, wheel bearings.
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Steering:
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Power steering system, steering rack, tie rods, alignment specifications.
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Heating Ventilation Air Conditioning:
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HVAC system diagnostics, refrigerant handling, compressor, evaporator, heater core.
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Body And Frame:
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Body panel repair, structural components, doors, hinges, latches.
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Electrical System:
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Wiring diagrams, lighting, power windows, locks, mirrors, battery, charging system.
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Restraint Systems:
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Airbag system diagnostics and replacement, seat belts.
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Diagnostics:
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OBD-II troubleshooting, diagnostic trouble codes (DTCs), scan tool usage.
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Procedures Included
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Maintenance:
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Oil change, filter replacement, fluid checks and changes, spark plug replacement, tire rotation.
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Troubleshooting:
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Systematic diagnostic procedures for common and complex issues.
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Repair:
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Step-by-step instructions for component replacement and repair.
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Installation:
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Guidance for installing new or replacement parts.
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Rebuilds:
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Detailed procedures for overhauling major components like engines and transmissions.
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Calibration:
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Procedures for calibrating sensors and systems after component replacement.
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Technical Depth
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Depth:
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Factory-level diagnostic and repair information, suitable for professional technicians and advanced DIYers.
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Diagnostics Coverage:
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Extensive coverage of diagnostic trouble codes (DTCs), symptom-based diagnostics, and wiring schematics for all major systems.
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Specifications:
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Detailed torque specifications, clearances, fluid capacities, and diagnostic parameters.
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Special Tools:
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Identification and usage of specialized tools required for specific repair procedures.
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Maintenance
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Service Intervals
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Oil Change Interval:
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Every 7,500 miles or 12 months (using synthetic oil and AC Delco filter).
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Tire Rotation Interval:
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Every 7,500 miles
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Engine Air Filter Replacement:
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Every 45,000 miles or as needed (based on inspection).
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Cabin Air Filter Replacement:
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Every 22,500 miles or 24 months.
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Spark Plug Replacement 3.6L:
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Every 90,000 miles (Iridium-tipped spark plugs).
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Transmission Fluid Change:
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Inspect every 45,000 miles; replace at 90,000-100,000 miles if operating under severe conditions or as per manual recommendation.
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Coolant Flush:
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Initial change at 150,000 miles, then every 50,000 miles thereafter.
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Fluid Specifications
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Engine Oil Specification:
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SAE 0W-30 Full Synthetic (GM dexos1™ approved)
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Engine Oil Capacity 3.6L:
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5.5 quarts (with filter change)
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Transmission Fluid Specification:
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Dexron VI Automatic Transmission Fluid
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Coolant Specification:
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GM P/N 12346290 (Orange) or equivalent Dex-Cool® compatible antifreeze.
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Brake Fluid Specification:
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DOT 3
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Power Steering Fluid Specification:
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GM P/N 89021185 (Synthetic Automatic Transmission Fluid Dexron VI) or equivalent.
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Known Issues
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Engine Oil Consumption 3.6L:
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Some 3.6L direct-injection engines (LLT/LFX) can exhibit excessive oil consumption, often related to PCV system or piston ring issues.
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Transmission Hard Shifting:
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Occasional reports of harsh shifting or delayed engagement in the 6-speed automatic transmission.
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Powertrain Control Module Issues:
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Potential for PCM software glitches or failures leading to various engine or transmission performance issues.
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Front Suspension Noise:
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Some owners report noises from the front suspension, potentially due to worn struts, bushings, or ball joints.
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HVAC System Performance:
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Infrequent reports of HVAC system issues, such as poor cooling or blower motor problems.
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Vehicle History
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Brand Heritage
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Brand Origin:
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Buick, established in 1899 by David Dunbar Buick, is one of America's oldest automobile brands.
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Brand Philosophy:
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Traditionally known for comfortable, quiet, and well-appointed vehicles.
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Model Evolution
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Predecessor Models:
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Replaced the Buick Park Avenue and Lucerne in Buick's sedan lineup.
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Second Generation Launch:
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The 2011 LaCrosse represents the second generation of the LaCrosse nameplate, introduced for the 2010 model year.
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Platform Change:
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Transitioned to the global GM Epsilon II platform, sharing underpinnings with vehicles like the Chevrolet Malibu and Cadillac XTS.
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Production
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Production Location:
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Detroit-Hamtramck Assembly Plant, Detroit, Michigan, USA.
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Production Years Second Gen:
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2010-2016
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