🏷️ Basic Information Identification Make: Chevrolet Model: Silverado 3500 Heavy Duty Year: 2012 Market: North America 👋 Introduction Market Position Segment: Heavy-Duty Pickup Truck (Class 3) Competitive Analysis Competitors: Ford Super Duty F-350, Ram Heavy Duty 3500 Key Features Target Audience: Commercial users, fleet operators, individuals requiring significant towing and hauling capacity Vehicle Purpose: Towing, hauling, heavy-duty work applications 📋 Manual Details Coverage Areas Primary Coverage: All aspects of owning and operating the 2012 Chevrolet Silverado 3500 HD Secondary Coverage: Basic maintenance, safety features, controls, comfort, and troubleshooting Page Count Estimated Pages: Approximately 350-450 pages (typical for an owner's manual of this type) Manual Type Type: Owner's Manual Language Language: English Format Format: Digital PDF 📖 Manual Coverage Systems Covered Powertrain: Engine operation, fuel, lubricants, cooling system, exhaust system Chassis: Brakes, steering, suspension, wheels, tires Electrical: Battery, lighting, infotainment, driver controls, security system Body And Interior: Doors, locks, windows, seats, climate control, appearance care Procedures Included Operation: Starting and operating the vehicle, driving tips, parking, towing information Maintenance: Checking fluid levels, tire pressure, basic inspections, cleaning Troubleshooting: Responding to warning lights, basic diagnostic indicators, 'taking care of the unexpected' Technical Depth Depth: Comprehensive for the owner, covering operation, maintenance, and basic troubleshooting. Does not include detailed repair procedures typically found in a service manual. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text (typical for official factory PDFs) Print Quality Quality: High (identical to original factory scans) Binding Type Binding: N/A (Digital download) Paper Type Paper: N/A (Digital download) ⚙️ Engine Specifications Primary Engine Engine Code: LML (Duramax Diesel) / LMG (Vortec V8 Gasoline) Engine Description Diesel: 6.6L Duramax V8 Turbo-Diesel Horsepower Diesel: 397 hp @ 3,000 rpm Torque Diesel: 765 lb-ft @ 1,600 rpm Engine Description Gasoline: 6.0L Vortec V8 FlexFuel Gasoline Horsepower Gasoline: 360 hp @ 5,400 rpm Torque Gasoline: 380 lb-ft @ 4,200 rpm Performance Towing Capacity Max: Up to 20,000 lbs (conventional hitch), 23,100 lbs (5th-wheel/gooseneck) Payload Capacity Max: Up to 7,357 lbs Fuel System Fuel Type Diesel: Diesel Fuel Fuel Type Gasoline: Unleaded Gasoline / E85 FlexFuel Lubricant Specifications Engine Oil Diesel: API CJ-4, SAE 15W-40 (e.g., GM Dexos 2 Diesel) Engine Oil Gasoline: API SN, SAE 5W-30 (e.g., GM Dexos1) Refill Capacities Engine Oil Capacity Diesel: 10.0 quarts (9.5 liters) Engine Oil Capacity Gasoline: 6.0 quarts (5.7 liters) Air Filter Air Filter Part Number Example Diesel: ACDelco A2772C / WIX WA10131 (Verify for specific VIN) 🔧 Transmission Standard Transmission Type Diesel: Allison 1000 6-speed automatic Transmission Type Gasoline: 6L90 6-speed automatic Optional Optional Transmission: N/A (Automatic standard for 3500 HD in 2012) Features Transmission Features: Tow/Haul mode, manual mode, grade braking Lubricant Specifications Transmission Fluid Allison: Dexron VI (GM P/N 88861150 or equivalent) Transmission Fluid 6L90: Dexron VI (GM P/N 88861150 or equivalent) 📐 Dimensions Exterior Wheelbase Std Cab: 133.6 inches (3393 mm) Wheelbase Ext Cab Std Bed: 143.5 inches (3645 mm) Wheelbase Ext Cab Long Bed: 157.3 inches (4000 mm) Wheelbase Crew Cab Std Bed: 153.7 inches (3904 mm) Wheelbase Crew Cab Long Bed: 167.4 inches (4252 mm) Bed Length Std: 78.8 inches (6.5 ft) Bed Length Long: 97.8 inches (8.0 ft) Weights Curb Weight Range: Approximately 6,300 - 7,500 lbs (depending on configuration) Gvwr Max: 11,000 lbs Gcwr Max: 26,000 lbs (Diesel), 23,000 lbs (Gasoline) 🛡️ Safety Features Ratings NHTSA Rollover Rating: 4 out of 5 stars (Typical for this model year, may vary by configuration) Active Features Braking System: 4-wheel disc brakes with ABS Trailer Sway Control: Integrated with StabiliTrak Traction Control: Electronic Traction Control Passive Features Airbags: Driver and front passenger airbags, available roof rail airbags Seat Belts: 3-point height-adjustable seat belts with pretensioners Child Seat Anchors: LATCH system 💡 Technology Features Infotainment Infotainment System: Chevrolet MyLink system (available on some trims), AM/FM stereo with CD player, USB port, auxiliary input jack, Bluetooth connectivity Driver Assistance Stability Control: StabiliTrak with Trailer Sway Control Towing Features: Integrated trailer brake controller (optional), tow/haul mode Connectivity Connectivity Options: Bluetooth for hands-free calling and audio streaming 🔧 Maintenance Service Intervals Oil Change Interval Diesel: 7,500 miles or 6 months, or under severe driving conditions (consult manual for specific conditions) Oil Change Interval Gasoline: 7,500 miles or 6 months, or under severe driving conditions (consult manual for specific conditions) Tire Rotation: Every 7,500 miles Fuel Filter Replacement Diesel: Every 15,000 miles (or as indicated by fuel filter/water in fuel message) Engine Coolant Flush: Initial flush at 150,000 miles, then every 50,000 miles thereafter Fluid Specifications Brake Fluid: DOT 3 Power Steering Fluid: Dexron VI Differential Fluid Rear: Synthetic Gear Lubricant API GL-5 SAE 75W-90 (or SAE 80W-90 if temperatures are milder) Known Issues Duramax Dpf Regeneration: Diesel Particulate Filter (DPF) regeneration cycles and potential clogging if not driven consistently at highway speeds. Glow Plug System Diesel: Glow plug issues can affect cold starts...