🏷️ Basic Information Identification Make: GMC Model: Yukon XL 2500 Year: 2009 Codes Platform: GMT900 (GMT931 for 2500 variants) 👋 Introduction Market Position Positioning: High-end, heavy-duty full-size SUV targeting families and commercial users requiring significant towing and hauling capabilities. Competitive Analysis Competitors: Ford Expedition EL, Chevrolet Suburban, Toyota Sequoia. Key Features Features: Extended wheelbase for maximum passenger and cargo capacity, robust V8 engine options, heavy-duty chassis and suspension, significant towing capacity. 📋 Manual Details Coverage Areas Primary Coverage: Comprehensive Service and Repair Information Secondary Coverage: Maintenance, Diagnostics, Troubleshooting, Repair Procedures Page Count Estimated Page Count: Extensive (Specific page count not provided, but factory-derived manuals are typically thousands of pages) Manual Type Type: Digital Service & Repair Manual Software Language Language: English Format Format: Online Access Software 📖 Manual Coverage Systems Covered Powertrain: Engine Mechanical, Engine Control Systems, Fuel System, Exhaust System, Transmission (Automatic), Drivetrain (2WD/4WD, Transfer Case, Axles) Chassis: Suspension (Front & Rear), Steering System, Brake System (Front & Rear, ABS, Traction Control) Electrical: Body Electrical Systems, Lighting, Instrumentation, Power Accessories, HVAC Electrical, Powertrain Control Module (PCM) Wiring, Chassis Control Module (CCM) Wiring Body And Interior: Body Panels, Doors, Windows, Seats, Trim, HVAC System (Mechanical) Procedures Included Maintenance: Oil Change, Filter Replacements, Fluid Checks & Top-offs, Tire Rotation, Spark Plug Replacement, Belt Inspection & Replacement Repair And Diagnostics: Component Removal & Installation, System Troubleshooting, Diagnostic Trouble Code (DTC) Interpretation, Wiring Diagrams, Component Testing Technical Depth Depth: Factory-level detail, covering all aspects from routine maintenance to complex diagnostics and component overhauls. 📊 Manual Specifications File Format Access Method: Web-based access via internet connection and web browser. Print Quality Print Quality: N/A (Digital format, but content is derived from OE printable materials) Binding Type Binding Type: N/A (Digital format) Paper Type Paper Type: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Option 1: 6.0L V8 Vortec OHV Engine Code 1: L76 Displacement 1: 5967 cc (364 ci) Horsepower 1: 352 hp @ 5400 rpm Torque 1: 380 lb-ft @ 4000 rpm Fuel System 1: Multi-port Fuel Injection (MPFI) Optional Engine Engine Option 2: 6.2L V8 Vortec OHV Engine Code 2: L94 Displacement 2: 6162 cc (376 ci) Horsepower 2: 380 hp @ 5500 rpm Torque 2: 417 lb-ft @ 4400 rpm Fuel System 2: Sequential Fuel Injection (SFI) with Active Fuel Management (AFM) 🔧 Transmission Standard Transmission Type: 4-Speed Automatic Heavy-Duty (4L70-E) Drivetrain Configuration: Rear-Wheel Drive (RWD) or Four-Wheel Drive (4WD) Optional Transfer Case: 2-Speed Autotrac Active Transfer Case (for 4WD models) Features Transmission Features: Tow/Haul mode, electronic range selection. 📐 Dimensions Exterior Wheelbase: 130.0 inches (3302 mm) Overall Length: 222.4 inches (5649 mm) Overall Width: 79.1 inches (2009 mm) Overall Height: 76.5 inches (1943 mm) Weights Curb Weight Approx: 5,800 - 6,200 lbs (2630 - 2812 kg) Gross Vehicle Weight Rating Gvw: 8,500 lbs (3856 kg) or 8,600 lbs (3901 kg) depending on configuration Max Towing Capacity: Up to 9,700 lbs (4400 kg) with proper trailering package 🛡️ Safety Features Ratings NHTSA Rollover Rating: 5-Star (for 2009 model year, specific ratings may vary) Active Features Active Safety: StabiliTrak Stability Control, Traction Control, Anti-lock Braking System (ABS), Available Trailer Sway Control Passive Features Passive Safety: Frontal Airbags, Side-Impact Airbags, Curtain Airbags (front and third-row), LATCH Child Seat Anchorage System. 💡 Technology Features Infotainment Infotainment System: Available touchscreen navigation system, Bose premium audio system, rear-seat entertainment system. Driver Assistance Driver Assistance Features: Rear parking assist, rearview camera (available on some trims). Connectivity Connectivity Options: Bluetooth connectivity for hands-free calling (RPO code UE1 OnStar required for some features). 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles or 6 months (conventional oil) or 10,000 miles or 12 months (synthetic oil), under normal driving conditions. Refer to manual for severe conditions. Air Filter Replacement: Every 45,000 miles or as needed based on inspection. Spark Plug Replacement: Approximately 100,000 miles (for iridium-tipped plugs). Fluid Specifications Engine Oil: SAE 5W-30 Synthetic (GM dexos1 Gen 2 or equivalent recommended for optimal performance and protection). Transmission Fluid: Dexron VI Automatic Transmission Fluid (ATF). Coolant: GM P/N 12346290 (Orange Long-Life Coolant) or equivalent meeting GM6244M specification. Brake Fluid: DOT 3 or DOT 4. Known Issues Common Concerns: Potential for AFM (Active Fuel Management) lifter issues (tapping noise), transmission cooler line leaks, and early wear on rear suspension components under heavy use. Exhaust manifold gasket leaks can also occur. 📚 Vehicle History Brand Heritage Brand Positioning: GMC historically positioned as the 'Professional Grade' division of General Motors, offering trucks and SUVs with enhanced capability and durability. Model Evolution Generation: Second Generation (GMT900 platform) - Introduced for the 2007 model year, replacing the previous GMT800 platform. The Yukon XL 2500 is the long-wheelbase variant of the Yukon. Production Manufacturing Location: Arlington, Texas, USA. 🏆 Awards & Recognition Recognitions Industry Recognition: The GMT900 platform SUVs, including the Yukon XL, generally received...