🏷️ Basic Information Identification Make: GMC Model: Acadia Year: 2009 Vehicle Type: Full-Size Crossover SUV Codes Platform: GM Lambda Platform 👋 Introduction Market Position Vehicle Segment: Mid-size/Full-size Crossover SUV Positioning Strategy: Family-oriented, comfortable, versatile passenger and cargo carrier, alternative to minivans and traditional SUVs. Competitive Analysis Key Competitors: Ford Explorer, Chevrolet Traverse (introduced later), Toyota Highlander, Honda Pilot, Mazda CX-9. Key Features Vehicle Attributes: Three-row seating, available all-wheel drive, independent suspension, comfortable ride quality. Manual Value Proposition Target Audience: Owners seeking to perform maintenance and repairs themselves, independent repair shops, fleet maintenance. Unique Selling Proposition: Provides the exact information dealership technicians use, eliminating guesswork and ensuring correct procedures. 📋 Manual Details Coverage Areas Manual Type: Service and Repair Manual Coverage Scope: All Models & All Repairs A-Z (Vehicle Specific) Page Count Page Count Estimate: Extensive (Typical for factory service manuals, often 2000+ pages when compiled) Language Language: English Format Digital Format: PDF Distribution Method: Downloadable 📖 Manual Coverage Systems Covered Powertrain: Engine, Control System, Fuel Service, Emission Control, Intake, Exhaust, Cooling, Lube, Ignition, Starting, Charging, Automatic Transmission, Clutch, Transfer Case, Propeller Shaft, Drive Shaft, Differential, Axle Chassis: Suspension, Tire & Wheel, Brake Control, Brakes, Parking Brake, Steering Column, Power Steering Electrical And Body: Air Conditioning, Supplemental Restraint System (SRS), Seat Belt, Engine Immobilizer, Cruise Control, Wiper & Washer, Door Lock, Meter, Audio/Visual, Horn, Windshield/Glass/Mirror, Instrument Panel, Seat, Engine Hood/Door, Exterior & Interior, Electrical, Multiplex/CAN Communication Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, inspections Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs), system testing procedures Repair: Component removal and installation, internal component repair, assembly/disassembly procedures Specifications: Torque specifications, fluid capacities, wear limits, electrical component resistance values Technical Depth Depth: Factory-level detail, suitable for professional technicians and advanced DIY enthusiasts Documentation Type: Step-by-step instructions, diagrams, illustrations, wiring schematics 📊 Manual Specifications File Format File Type: PDF Software Requirements: Adobe Acrobat Reader (free), WinZip (free) Print Quality Printability: Yes (All pages printable) Image Scaling: Images can be enlarged for detailed viewing and printing Binding Type Binding Type: Digital (No physical binding) Paper Type Paper Type Implication: N/A (Digital format allows user to choose paper type for printing) ⚙️ Engine Specifications Primary Engine Engine Type: 3.6L V6 (GM High Feature Engine - HFV6) Engine Code: LLT (often associated with this generation, though specific to '09 might be LY7 variant) Performance Horsepower: 275 hp @ 6300 rpm (approximate) Torque: 251 lb-ft @ 3400 rpm (approximate) Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (SFI) Engine Build Cylinder Head Design: Dual Overhead Camshafts (DOHC), 24 Valves Bore X Stroke: 3.74 in x 3.39 in (95.0 mm x 86.1 mm) (approximate) Compression Ratio: 10.2:1 (approximate) 🔧 Transmission Standard Transmission Type: 6-speed automatic Transmission Model: GM 6T75 Optional Drivetrain Options: Front-Wheel Drive (FWD), All-Wheel Drive (AWD) Features Transmission Features: Driver Shift Control (manual shifting capability), Tow/Haul mode. 📐 Dimensions Exterior Wheelbase: 118.9 inches (3020 mm) Overall Length: 200.8 inches (5100 mm) Overall Width: 78.2 inches (1986 mm) Overall Height: 67.9 inches (1725 mm) Interior Seating Capacity: 7-8 passengers (depending on configuration) Cargo Cargo Volume Behind 3Rd Row: 19.8 cu ft (approximate) Cargo Volume Behind 2Nd Row: 62.7 cu ft (approximate) Weights Curb Weight: 4,600 - 4,800 lbs (approximate, depending on configuration) Towing Capacity: 5,200 lbs (when properly equipped) 🛡️ Safety Features Ratings NHTSA Rollover Rating: 4 out of 5 stars (for AWD models, typically) IIHS Crash Test Performance: Good (in tests conducted for that era) Active Features Braking System: 4-wheel disc brakes with Anti-lock Braking System (ABS) Stability Control: StabiliTrak® Electronic Stability Control Passive Features Airbags: Frontal airbags, side-impact airbags, side curtain airbags for all rows. Seatbelts: 3-point seat belts for all seating positions, front pretensioners, load limiters. 💡 Technology Features Infotainment Infotainment System: Available DVD Entertainment System, Navigation system (optional), Bose premium audio system. Connectivity: Available Bluetooth® hands-free calling (RPO Code UPF), Auxiliary audio input jack. Driver Assistance Cruise Control: Standard cruise control, potentially adaptive cruise control on higher trims or optional packages. Parking Assistance: Rear parking assist (optional). 🔧 Maintenance Service Intervals Oil Change Interval: Typically 7,500 miles or 6 months (using synthetic oil), consult manual for exact recommendations based on driving conditions. Tire Rotation Interval: Every 7,500 miles Transmission Fluid Change Interval: Under normal driving, often considered 'lifetime' by GM, but recommended every 60,000-100,000 miles for longevity. Fluid Specifications Engine Oil Specification: SAE 5W-30 Synthetic (API SM or higher, GM6094M approved) Coolant Specification: Dex-Cool® (GM P/N 12346680 or equivalent, orange long-life coolant) Transmission Fluid Specification: Dexron® VI Automatic Transmission Fluid (ATF) Known Issues Common Wear Items: Brake pads and rotors, suspension components (bushings, ball joints, struts/shocks), water pump (especially if original), catalytic converter. Powertrain Considerations: Timing chain wear on early LLT engines (though less prevalent on '09), transmission solenoid issues, occasional catalytic converter failure. Electrical Concerns: Can bus communication errors, HVAC control module issues,...