🏷️ Basic Information Identification Make: Hummer Model: H3 Year: 2009 Generation Generation Code: First Generation (T384) Codes Chassis Code: T384 👋 Introduction Market Position Segment: Mid-size SUV, known for off-road capability and distinctive styling Competitive Analysis Key Competitors: Jeep Wrangler Unlimited, Toyota FJ Cruiser, Nissan Xterra, Ford Explorer Sport Trac (for H3T) Key Features Design Philosophy: Rugged, military-inspired styling, strong off-road performance Manual Value Proposition: Provides professional-level repair information for DIY enthusiasts and independent mechanics, enabling cost savings and proper vehicle maintenance. 📋 Manual Details Coverage Areas Primary Coverage: All Hummer H3 models Engine Variants Covered: 3.7L Vortec I5 (LLR), 5.3L Vortec V8 (LH6) Transmission Variants Covered: 4-speed 4L60-E automatic, 5-speed manual (H3T only) Page Count Estimated Page Count: Hundreds of pages (exact count not specified, but described as comprehensive) Manual Type Type: Factory Service Repair Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Management: Engine diagnostics, fuel system, ignition system, emission controls, cooling system, lubrication system Drivetrain: Transmission (automatic and manual), transfer case, drivelines, axles, differentials, locking differentials Suspension Steering: Front and rear suspension components, steering gear, power steering system, steering column Brakes: Brake system diagnosis, hydraulic components, ABS (Anti-lock Braking System), parking brake Electrical: Battery, charging system, starting system, lighting system, instrument cluster, body control modules, power accessories HVAC: Heating, ventilation, and air conditioning system diagnosis and repair Body Interior: Body panels, doors, glass, interior trim, seats, airbags Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and top-offs, tune-ups Troubleshooting: Diagnostic procedures for common and complex issues, symptom-based troubleshooting guides Repair: Component removal and installation, major and minor repairs, overhauls Diagnostics: Use of diagnostic tools, OBD-II (On-Board Diagnostics II) procedures, reading and interpreting fault codes Technical Depth Depth: Comprehensive, covering routine maintenance to complete engine and transmission rebuilds Detail Level: Detailed step-by-step instructions, exploded diagrams, high-resolution photographs 📊 Manual Specifications File Format Compatibility: Windows and MAC computers, tablets, and smartphones Print Quality Printability: Printable: Single pages or the entire manual Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Licensing Usage License: Unlimited lifetime use on multiple devices, no expiry dates ⚙️ Engine Specifications Primary Engine Engine Type 1: Inline 5-Cylinder (Vortec LLR) Displacement 1: 3.7 Liters (226 cubic inches) Horsepower 1: 242 hp @ 5600 rpm Torque 1: 242 lb-ft @ 4600 rpm Optional Engine Engine Type 2: V8 (Vortec LH6) Displacement 2: 5.3 Liters (325 cubic inches) Horsepower 2: 300 hp @ 5200 rpm Torque 2: 320 lb-ft @ 4000 rpm Fuel System Fuel Delivery System: Sequential Electronic Fuel Injection (SFI) Fuel Type: Unleaded gasoline, Minimum 87 octane 🔧 Transmission Standard Transmission Type: 4-speed automatic (4L60-E) Optional Transmission Type H3T: 5-speed manual (NV1500) Features Transfer Case: 2-speed electronically controlled transfer case with 4WD Auto, 4WD Lock, and 4WD Low modes Differential Lock: Rear locking differential standard on many models, front optional 📐 Dimensions Exterior Wheelbase: 119.9 inches (3045 mm) Length: 192.2 inches (4882 mm) Width: 77.1 inches (1958 mm) Height: 75.9 inches (1928 mm) Weights Curb Weight 3.7L: Approximately 4,700 - 4,900 lbs (2132 - 2223 kg) Curb Weight 5.3L: Approximately 5,000 - 5,200 lbs (2268 - 2359 kg) Towing Capacity: Up to 5,000 lbs (2268 kg) 🛡️ Safety Features Ratings NHTSA Rollover Resistance: 4/5-star rating (indicating good rollover resistance for its class) Active Features Traction Control: StabiliTrak (Traction Control and Stability Control) ABS: 4-wheel Anti-lock Braking System (ABS) Passive Features Airbags: Front airbags, side curtain airbags (optional/standard depending on trim) Seatbelts: 3-point safety belts with pretensioners 💡 Technology Features Infotainment Audio System: AM/FM stereo with CD player, optional navigation system, auxiliary input jack Speaker Configuration: Standard 6-speaker system, optional 7-speaker Bose premium audio Driver Assistance Parking Assist: Rear parking assist sensors (optional) Connectivity Bluetooth: Bluetooth for hands-free calling (optional, via specific infotainment packages) 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles or 6 months (whichever comes first), or every 5,000 miles if operating in severe conditions. Tire Rotation: Every 7,500 miles Spark Plug Replacement: 3.7L: 100,000 miles; 5.3L: 100,000 miles (iridium plugs) Fluid Specifications Engine Oil Type: SAE 5W-30 Synthetic Oil (API SN or newer) Engine Oil Capacity: 3.7L: 5.5 quarts (5.2 L); 5.3L: 6 quarts (5.7 L) Transmission Fluid Type Auto: Dexron VI Automatic Transmission Fluid Transmission Fluid Capacity Auto: Approx. 5-6 quarts (dry fill for 4L60-E) Transfer Case Fluid Type: Dexron III/VI Automatic Transmission Fluid Coolant Type: GM P/N 12346794 (or equivalent), Orange/Pink colored Dex-Cool compatible coolant Known Issues Common Concern 1: Torque converter shudder or slippage in automatic transmissions Common Concern 2: Front differential wear or noise, especially in off-road use Common Concern 3: Water pump leaks or bearing noise Common Concern 4: Electrical gremlins, particularly with body control modules or sensors 📚 Vehicle History Brand Heritage Brand Legacy: Hummer was originally a brand of off-road...