🏷️ Basic Information Identification Make: Buick Model: Regal Year: 2004 Codes Platform Code: W-body 👋 Introduction Market Position Segment: Mid-size Sedan Target Audience: Individuals and families seeking comfortable, reliable, and stylish transportation, often with a preference for American brands and a balance of performance and economy. Competitive Analysis Key Competitors: Ford Taurus, Chevrolet Impala, Dodge Intrepid, Toyota Camry, Honda Accord, Nissan Altima Key Features Vehicle Highlights: Comfortable ride, spacious interior, refined styling, available V6 engine, good value proposition. 📋 Manual Details Coverage Areas Covered Regions: North America (USA, Canada) Page Count Estimated Page Count: 150-250 pages (typical for owner's manuals of this era) Manual Type Type: Owner's Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain Systems: Engine operation, cooling system, fuel system, exhaust system, ignition system, lubrication system Drivetrain Systems: Transmission (automatic), drivetrain components (drive axles, differential) Chassis Systems: Braking system (ABS, traction control), steering system, suspension system, wheels and tires Electrical Systems: Battery, charging system, lighting, wipers, horn, power accessories (windows, locks), instrument panel and controls, basic fuse identification Comfort And Convenience: HVAC system, audio system, seating, interior controls, keyless entry, cruise control Safety Systems: Airbags, seat belts, child restraint systems (LATCH/ISOFIX), vehicle security system Procedures Included Routine Maintenance: Checking fluid levels (oil, coolant, brake fluid, power steering fluid, windshield washer fluid), checking tire pressure, replacing wiper blades, basic cleaning procedures Do It Yourself Activities: Jump starting the vehicle, changing a flat tire, checking and replacing fuses, adding windshield washer fluid Safety Considerations: Safe driving practices, emergency procedures, parking brake operation, hazard warning operation Towing Information: Towing a trailer (weight limits, trailer wiring, hitch recommendations, trailer braking requirements), towing the vehicle itself (flat towing, dolly towing, recreational towing) Technical Depth Depth: Covers essential owner-level information for operating, maintaining, and understanding vehicle features. Not a comprehensive service or repair manual but provides guidance on routine checks and basic tasks. 📊 Manual Specifications File Format Digital Format: PDF (Portable Document Format) Print Quality Printability: Printable on standard home or office printers. High-resolution text and diagrams suitable for printing. Binding Type Binding: N/A (Digital download, no physical binding) Paper Type Paper Type: N/A (Digital download, no physical paper type) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated V6 Displacement: 3.8 L (3800 Series II) Engine Code: L36 (Naturally Aspirated) Performance Horsepower: 200 hp @ 5200 rpm Torque: 230 lb-ft @ 4000 rpm Fuel System Fuel Delivery: Sequential Port Fuel Injection (SFI) Fuel Type: Unleaded Gasoline Engine Features Block Material: Cast Iron Cylinder Head Material: Aluminum Valvetrain: Overhead Valve (OHV), 12 Valves (2 valves per cylinder) Compression Ratio: 9.4:1 🔧 Transmission Standard Transmission Type: 4-Speed Automatic Transmission Code: 4T65-E Optional Optional Transmission: None for 2004 Regal (V6 models exclusively used 4T65-E) Features Transmission Features: Driver Shift Control (manual shifting capability), lock-up torque converter for improved fuel economy 📐 Dimensions Exterior Length: 197.3 inches (5012 mm) Width: 71.4 inches (1813 mm) Height: 56.2 inches (1427 mm) Wheelbase: 110.5 inches (2807 mm) Interior Passenger Volume: Approx. 100 cubic feet Cargo Trunk Volume: Approx. 15.1 cubic feet Weights Curb Weight: Approx. 3400-3600 lbs (depending on trim and options) Gross Vehicle Weight Rating: Approx. 4500-4700 lbs 🛡️ Safety Features Ratings NHTSA Front Impact Driver: 5 Stars NHTSA Front Impact Passenger: 5 Stars NHTSA Side Impact Front Driver: 4 Stars NHTSA Side Impact Front Passenger: 4 Stars NHTSA Side Impact Rear Passenger: 4 Stars IIHS Moderate Overlap Frontal: Good Active Features Traction Control: Traction Control System (TCS) - Standard on some trims, optional on others ABS: Anti-lock Braking System (ABS) - Standard on all models Passive Features Airbags: Frontal airbags for driver and front passenger, optional side-impact airbags Seat Belts: 3-point seat belts with pretensioners and load limiters for front occupants, 3-point seat belts for rear occupants Child Restraints: LATCH (Lower Anchors and Tethers for CHildren) system in rear seats 💡 Technology Features Infotainment Audio System: Standard AM/FM stereo with CD player. Optional premium sound system (e.g., Monsoon) available on higher trims. Cassette player was also common. Climate Control: Manual climate control standard, optional dual-zone automatic climate control. Driver Assistance Cruise Control: Standard cruise control Connectivity Auxiliary Input: No standard auxiliary audio input (3.5mm jack) or USB ports. Bluetooth connectivity was not a factory option for this model year. Convenience Features Keyless Entry: Remote keyless entry system often standard or optional depending on trim level. 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles or 6 months, whichever comes first, with synthetic blend or synthetic oil. Consult manual for specific oil type. Tire Rotation Interval: Every 7,500 miles Coolant Flush Interval: First flush at 100,000 miles, then every 50,000 miles thereafter (Dex-Cool coolant specified). Transmission Fluid Change: Check at regular intervals, typically recommended around 100,000 miles or as needed based on driving conditions (consult manual for specific recommendation). Fluid Specifications...