🏷️ Basic Information Identification Make: Pontiac Model: Bonneville Year: 2004 Codes Vin Prefix: 1G Platform: GM G 👋 Introduction Market Position Segment: Full-size sedan Target Audience: Consumers seeking comfortable, spacious, and stylish transportation with a focus on V6 power and a refined ride. Competitive Analysis Competitors: Ford Crown Victoria, Mercury Grand Marquis, Toyota Avalon, Chrysler 300M (earlier versions), Buick Park Avenue. Key Features Design Philosophy: Emphasis on American luxury, comfort, and V6 performance. Value Proposition: Provides a blend of spaciousness, a comfortable ride, and available V6 power at a competitive price point for its class. 📋 Manual Details Coverage Areas Manual Type: Owner's Manual Language: English Format: PDF (Electronic) Page Count Estimated: Approximately 250-300 pages (typical for this model and year) Digitization Quality: High-resolution, searchable text 📖 Manual Coverage Systems Covered Powertrain: Engine operation, lubrication, cooling, starting and charging, fuel system, exhaust system. Transmission: Automatic transmission operation, fluid level checks, basic maintenance. Chassis: Braking system (ABS), steering system, suspension system, wheels and tires. Electrical: Lighting system, instrument panel and indicators, audio system, climate control, power accessories, fuses and fusible links, battery. Body: Doors, windows, seats, mirrors, exterior lighting, interior trim, locks, security system. Procedures Included Operation: Starting and driving, parking, fuel economy, climate control operation, use of convenience features (power seats, windows, locks), audio system operation. Maintenance: Checking fluid levels (oil, coolant, brake fluid, washer fluid), tire pressure checks, wiper blade replacement, bulb replacement, basic cleaning. Troubleshooting: Understanding dashboard warning lights and messages, basic troubleshooting for common issues. Technical Depth Depth: Designed for the vehicle owner, covering safe operation, basic maintenance, and understanding vehicle functions. Does not include in-depth diagnostic or repair procedures typically found in a service manual. 📊 Manual Specifications File Format File Type: PDF Searchability: Fully searchable text Print Quality Printability: Printable on standard printers Binding Type Binding: Not Applicable (Electronic Format) Paper Type Paper Quality: Not Applicable (Electronic Format) ⚙️ Engine Specifications Primary Engine Engine Code: L36 Engine Type: 3.8L V6 (Series II Supercharged available on GTP) Displacement: 3.8 Liters (231 cubic inches) Horsepower Est: 205 hp @ 5200 rpm (non-supercharged) Torque Est: 230 lb-ft @ 3600 rpm (non-supercharged) Performance Supercharged Engine Code: L67 (GTP model) Supercharged Horsepower Est: 240 hp @ 5200 rpm Supercharged Torque Est: 280 lb-ft @ 3600 rpm Fuel System Fuel Delivery: Sequential Port Fuel Injection (SFI) Fuel Type Recommended: 87 Octane Unleaded Gasoline Ignition System: Distributorless Electronic Ignition (E.D.I.) 🔧 Transmission Standard Transmission Type: 4-speed automatic (4T65-E) Optional Optional Transmission: 4-speed automatic with overdrive and traction control (specific to GTP trim with supercharged engine) Features Transmission Fluid Type: Dexron-III (or equivalent meeting GM specification) 📐 Dimensions Exterior Length Est: 201.0 inches Width Est: 73.5 inches Height Est: 55.4 inches Wheelbase Est: 112.2 inches Interior Passenger Volume Est: 103.1 cubic feet Cargo Trunk Volume Est: 16.1 cubic feet Weights Curb Weight Est: 3500-3800 lbs (depending on trim and options) 🛡️ Safety Features Ratings NHTSA Front Driver Est: 5-Star NHTSA Front Passenger Est: 5-Star NHTSA Side Driver Est: 4-Star NHTSA Side Rear Passenger Est: 4-Star Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Optional (Traction Control System - TCS) Passive Features Airbags: Frontal airbags for driver and front passenger; optional side-impact airbags. Seatbelts: Three-point seatbelts with pretensioners for front seats; three-point seatbelts for rear seats. 💡 Technology Features Infotainment Audio System Options: Available AM/FM stereo with CD player, cassette player, and premium sound systems (e.g., Bose). Climate Control: Manual or optional dual-zone automatic climate control. Driver Assistance Cruise Control: Standard cruise control. Keyless Entry: Optional keyless entry and remote start. Connectivity Onstar: Optional OnStar telematics system available on most trims. 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles or 6 months, whichever comes first (using synthetic blend or full synthetic oil) Tire Rotation Interval: Every 7,500 miles Engine Coolant Flush Interval: Every 5 years or 100,000 miles (initial fill, then as specified) Transmission Fluid Change Interval: Every 50,000 - 100,000 miles, or as indicated by maintenance minder/severe service schedule. Fluid Specifications Engine Oil Type Capacity: SAE 5W-30, 4.5 quarts (4.3 L) with filter change Coolant Type Capacity: GM P/N 12346175 (Orange Long-Life) or equivalent Dex-Cool, 12.2 quarts (11.5 L) Brake Fluid Type: DOT 3 Power Steering Fluid Type: GM P/N 1050017 or equivalent Dexron-VI Known Issues Head Gasket Leaks: While not as prevalent as some other GM V6 engines, the 3800 Series II can develop head gasket leaks over time, particularly if maintenance is neglected. Transmission Solenoids: The 4T65-E transmission can sometimes experience issues with shift solenoids, leading to rough shifting or failure to engage gears. Power Steering Pump Noise: The power steering pump can sometimes become noisy, often due to low fluid levels or the pump itself nearing the end of its service life. Window Regulator Failure: Power window regulators can wear out, causing windows to become inoperable...