The 2018 Envision is a compact crossover SUV designed to offer a comfortable and refined driving experience, positioning itself as a strong contender in its segment with features such as a quiet cabin and an upscale interior. Built on the GM D2XX platform, it offers a choice between a 2.5L naturally aspirated engine and a more potent 2.0L turbocharged engine, both available with front-wheel drive or all-wheel drive. Known for its comfortable ride and modern technology, including the infotainment system with Apple CarPlay and Android Auto compatibility, the Envision is engineered for everyday practicality and family use. This comprehensive service and repair manual provides in-depth information for all 2018 Envision models and trims. It covers a wide range of topics, from routine maintenance procedures, such as oil changes and filter replacements, to complex diagnostic and repair procedures for all major vehicle systems, including the engine, transmission, brakes, suspension, steering, and electrical systems. The manual also details troubleshooting guides, technical specifications, and safety guidelines, making it an essential resource for owners, technicians, and mechanics seeking to maintain, diagnose, and repair the vehicle effectively. 🏷️ Basic Information Identification Make: Buick Model: Envision Year: 2018 Codes Platform: GM D2XX 👋 Introduction Market Position Segment: Compact Crossover SUV Segment Competitors: Acura RDX, Lexus NX, Audi Q3, BMW X1, Mercedes-Benz GLA, Cadillac XT4 Competitive Analysis Key Selling Points: Comfortable ride, quiet cabin, upscale interior for its class, available AWD, modern technology features Key Features Powertrain Options: 2.5L naturally aspirated, 2.0L turbocharged engine options, FWD and AWD availability Technology: Buick IntelliLink infotainment, available Apple CarPlay/Android Auto, advanced safety features 📋 Manual Details Coverage Areas Models Covered: All 2018 Buick Envision models and trims Repair Scope: A-Z comprehensive repairs and maintenance Page Count Estimated Pages: 2000-3000 (typical for comprehensive dealer service manuals) Manual Type Type: Official Dealership Service and Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine: 2.5L L4 (LGZ), 2.0L Turbo L4 (LTG) - diagnostics, repair, overhaul, timing, cooling, lubrication, fuel injection Transmission: 6T40/6T50 6-speed automatic - diagnostics, overhaul, fluid service, electronic controls, torque converter Drivetrain: Front-wheel drive (FWD) and All-wheel drive (AWD) systems, including differentials, CV axles, driveshafts Brakes: Hydraulic system, ABS, EBD, Traction Control, parking brake (electronic), brake pad/rotor replacement, caliper service Suspension: Front struts, rear multi-link suspension, springs, shock absorbers, bushings, wheel alignment specifications Steering: Electric Power Steering (EPS) system, column, rack and pinion - diagnostics, component replacement Electrical: Battery, charging system, starting system, lighting, fuses, relays, wiring diagrams, multiplexing systems Body: Exterior panels, doors, hood, liftgate, glass, interior trim, seals, sound deadening HVAC: Air conditioning, heating, ventilation, climate control module, refrigerant handling, component replacement Infotainment: Audio system, navigation, Bluetooth, Apple CarPlay/Android Auto integration, display screen service Safety Systems: Airbags (SRS), seatbelt pretensioners, seatbelt service, related sensors and control modules Driver Assistance: Adaptive Cruise Control (ACC), Forward Collision Alert (FCA), Lane Keep Assist (LKA), Blind Spot Monitoring (BSM), Parking Assist - sensor calibration, module diagnostics Procedures Included Diagnostics: Symptom-based diagnostics, diagnostic trouble codes (DTCs), using GM diagnostic tools (e.g., GDS2) Maintenance: Oil changes, filter replacements, fluid checks/fills, brake inspections, tire rotations, spark plug replacement, belt replacement Repair: Component replacement (engine, transmission, brakes, suspension, steering, electrical modules), body panel repair, interior trim repair Overhaul: Engine and transmission internal component repair/rebuild procedures Calibration: Sensor calibration for ADAS systems, steering angle sensor calibration Troubleshooting: Step-by-step troubleshooting guides for common and complex issues Technical Depth Depth: In-depth, from basic maintenance to complete engine/transmission rebuilds and complex electrical diagnostics Diagnostic Tools: Specific guidance on using GM-specific diagnostic software and hardware 📊 Manual Specifications File Format Type: PDF Searchability: Searchable text content for quick information retrieval Print Quality Quality: High-resolution diagrams, illustrations, and text Binding Type Type: N/A (Digital) Paper Type Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine 2.5L Lgz: Displacement: 2.5 Liters; Configuration: Inline-4; Horsepower: 197 hp @ 6300 rpm; Torque: 192 lb-ft @ 4400 rpm; Fuel Delivery: Direct Injection 2.0L Ltg Turbo: Displacement: 2.0 Liters; Configuration: Inline-4; Horsepower: 252 hp @ 5500 rpm; Torque: 295 lb-ft @ 2500-4500 rpm; Fuel Delivery: Direct Injection; Turbocharged Performance Fuel Economy Estimate: Varies by engine and drivetrain, typically 22-26 MPG combined Fuel System Injection Type: Direct Injection (DI) 🔧 Transmission Standard Type: 6-speed automatic (6T40/6T50) Optional Type: N/A (6-speed automatic is standard across all powertrains) Features Drivetrain: Available Front-Wheel Drive (FWD) and All-Wheel Drive (AWD) Fluid Specification Transmission Fluid: Dexron-VI Automatic Transmission Fluid 📐 Dimensions Exterior Length: ~183.6 inches Width: ~72.4 inches (excluding mirrors) Height: ~65.4 inches Interior Passenger Volume: ~103.7 cubic feet Cargo Cargo Volume Behind Rear Seats: ~27.2 cubic feet Cargo Volume With Rear Seats Folded: ~57.3 cubic feet Weights Curb Weight: ~3600-3800 lbs (varies by configuration) Towing Capacity: Not Recommended for Towing (typical for this segment) 🛡️ Safety Features Ratings NHTSA Overall Rating: 5-Star (typically, check specific VIN for exact...