The 2006 Buick LaCrosse is a full-size sedan engineered for comfortable and reliable transportation, representing Buick's commitment to offering refined American vehicles. Built on the GMX112 platform and manufactured in Kansas City, Missouri, this model offers a spacious interior and a smooth ride, making it a strong contender in its segment against competitors like the Chrysler 300 and Toyota Avalon. The LaCrosse is available with two distinct V6 engine options: the 3.6L V6 (LY7) producing approximately 255 horsepower and the 3.8L V6 Supercharged (L32) delivering around 235 horsepower, both paired with a 4-speed automatic 4T65-E transmission and front-wheel drive. Its design prioritizes passenger comfort and safety, evident in its excellent crash test ratings from NHTSA and IIHS. This comprehensive service and repair manual provides detailed guidance for maintaining and repairing the 2006 Buick LaCrosse. It covers all major systems, including the powertrain, chassis, electrical components, and body/interior, with specific attention to the 3.6L LY7 and 3.8L L32 Supercharged engines. Within its extensive digital format, users will find step-by-step procedures for routine maintenance, diagnostics, troubleshooting, and component repair or replacement. Technical specifications, fluid requirements, and insights into common issues are also included, empowering owners, mechanics, and technicians to effectively service and preserve the vehicle's performance and longevity. 🏷️ Basic Information Identification Make: Buick Model: LaCrosse Year: 2006 Codes Platform: GMX112 👋 Introduction Market Position Segment: Full-size/Large Sedan Target Audience: Owners seeking to perform maintenance and repairs, DIY enthusiasts, independent repair shops Competitive Analysis Competitors 2006: Chrysler 300, Dodge Charger, Ford Five Hundred, Mercury Montego, Toyota Avalon, Lincoln Town Car Key Features Convenience: Instant online access, searchable content, accessible on multiple devices (PC, laptop, smartphone, tablet) with internet connection. Licensing: Officially licensed and derived from OE (Original Equipment) materials by RepairSurge. Value Proposition: Cost savings through DIY repairs, comprehensive information, year-long access with renewal options. 📋 Manual Details Coverage Areas Primary Coverage: 2006 Buick LaCrosse Engine Options Covered: 3.6L V6 (LY7), 3.8L V6 Supercharged (L32) Page Count Estimated Page Count: Extensive (Digital format, equivalent to hundreds of printed pages) Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF Download (Software) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical (3.6L LY7, 3.8L L32 Supercharged), Engine control systems, Fuel system, Cooling system, Exhaust system, Transmission (4-speed automatic 4T65-E) Chassis: Brakes (ABS, DRL, TCS), Steering, Suspension (Front and Rear), Wheels and Tires Electrical: Body Control Module (BCM), Powertrain Control Module (PCM), Lighting, Instrumentation, HVAC controls, Audio system, Power accessories (windows, locks, seats), Navigation system (if equipped), Wiring diagrams Body And Interior: Body panels, Doors, Glass, Seats, Interior trim, HVAC system components Procedures Included Maintenance: Scheduled maintenance intervals, Oil changes, Filter replacements, Fluid checks and changes, Tune-ups Diagnostics: Troubleshooting guides, Diagnostic Trouble Codes (DTCs), Diagnostic procedures for various systems Repair: Engine component repair and replacement, Transmission overhaul, Brake system repair, Suspension component replacement, Electrical component repair, HVAC system repair Assembly Disassembly: Step-by-step instructions for component removal and installation Technical Depth Depth: Comprehensive, covering basic to advanced repairs, diagnostics, and specifications derived from OE materials. 📊 Manual Specifications File Format File Type: PDF (Software-based access) Print Quality Print Capability: Printable pages (user discretion) Binding Type Binding: N/A (Digital download) Paper Type Paper Quality: N/A (Digital download) ⚙️ Engine Specifications Primary Engine Engine Code 1: LY7 Engine Description 1: 3.6L V6 DOHC, 24-valve, Aluminum block and heads Displacement 1: 3564 cc (217.5 cu. in.) Horsepower 1: 255 hp @ 6200 rpm (approx.) Torque 1: 250 lb-ft @ 4000 rpm (approx.) Optional Engine Engine Code 2: L32 Engine Description 2: 3.8L V6 OHV, 12-valve, Supercharged, Cast-iron block, Aluminum heads Displacement 2: 3791 cc (231.3 cu. in.) Horsepower 2: 235 hp @ 5200 rpm (approx.) Torque 2: 275 lb-ft @ 3600 rpm (approx.) Fuel System Fuel Delivery: Sequential Port Fuel Injection (SFI) Fuel Type: Regular Unleaded Gasoline (87 Octane) Ignition System: Coil-near-plug ignition 🔧 Transmission Standard Transmission Type: 4-speed Automatic Transmission Model: 4T65-E Features Drive Wheels: Front-Wheel Drive (FWD) Transmission Fluid Type: Dexron-VI Automatic Transmission Fluid (ATF) 📐 Dimensions Exterior Length: 197.9 inches (5027 mm) Width: 72.5 inches (1841 mm) Height: 58.2 inches (1478 mm) Wheelbase: 113.8 inches (2891 mm) Weights Curb Weight: 3700 - 3900 lbs (approx., depending on engine/options) Gross Vehicle Weight Rating: Not specified, typically ~5000 lbs Cargo Trunk Volume: 15.0 cubic feet (approx.) 🛡️ Safety Features Ratings NHTSA Front Impact Driver: 5 Stars NHTSA Front Impact Passenger: 5 Stars NHTSA Side Impact Front Driver: 5 Stars NHTSA Side Impact Front Passenger: 5 Stars NHTSA Side Impact Rear Driver: 5 Stars NHTSA Side Impact Rear Passenger: 5 Stars IIHS Moderate Overlap Front: Good IIHS Side Impact: Good Active Features ABS: Standard (4-wheel disc brakes with ABS) Traction Control: Standard (TCS) Electronic Stability: Available (StabiliTrak) Passive Features Airbags Front: Standard front driver and passenger airbags Airbags Side: Available front and rear side-impact airbags Seatbelts:...