🏷️ Basic Information Identification Make: Pontiac Model: Grand Prix Year: 2008 Codes Vin Prefix: 1G (General Motors - USA) Platform: W-Body 👋 Introduction Market Position Segment: Full-size sedan, known for comfortable ride and performance-oriented trims. Competitive Analysis Rivals: Ford Five Hundred/Taurus, Toyota Avalon, Chrysler 300, Dodge Charger, Chevrolet Impala. Key Features Heritage: Successor to iconic Grand Prix models, offering a blend of performance and everyday usability. Design Philosophy: American-style large sedan with an emphasis on driver comfort and optional V8 power. 📋 Manual Details Coverage Areas Primary Focus: Owner Information and Operation Secondary Focus: Basic Maintenance and Specifications Page Count Estimated Pages: Approximately 200-300 pages (typical for this era and model) Manual Type Type: Owner's Manual Language Language: English Format Format: Digital PDF 📖 Manual Coverage Systems Covered Powertrain: Engine operation, fuel information, fluid capacities, lubricant specifications, air filter Chassis: Brakes (general operation), steering (general operation), suspension (general operation) Electrical: Instrument cluster, lighting systems, entertainment systems, driver controls, locks and security Interior: Climate controls, seating, safety restraints Procedures Included Operation: Starting and operating the vehicle, using vehicle features Maintenance: Checking fluid levels (oil, coolant, brake fluid, etc.), replacing air filter, battery care Troubleshooting: Understanding warning lights and indicators, basic advice for common issues Technical Depth Depth: Owner-level understanding and basic maintenance tasks; does not cover in-depth diagnostics or repair procedures. 📊 Manual Specifications File Format Compatibility: Requires PDF reader software (Adobe Acrobat Reader, Foxit Reader, etc.) Print Quality Quality: Digital reproduction of original factory manual; quality dependent on original source scans. Binding Type Binding: Not applicable (digital format) Paper Type Type: Not applicable (digital format) ⚙️ Engine Specifications Primary Engine Engine Option 1: 3.8L V6 (L36/L32) Displacement 1: 3800 cc (231 cu in) Horsepower 1: Approx. 200-230 hp (depending on naturally aspirated or supercharged) Torque 1: Approx. 230-260 lb-ft Fuel System 1: Sequential Fuel Injection (SFI) Engine Option 2: 5.3L V8 (LH6) Displacement 2: 5328 cc (325 cu in) Horsepower 2: Approx. 303 hp Torque 2: Approx. 323 lb-ft Fuel System 2: Active Fuel Management (AFM), Sequential Fuel Injection (SFI) Performance Acceleration 0 60 V6: Approx. 7.5-8.5 seconds Acceleration 0 60 V8: Approx. 6.0-6.5 seconds 🔧 Transmission Standard Transmission Type: 4-Speed Automatic (4T65-E) Optional Transmission Type: 4-Speed Automatic with manual shift mode (4T65-E HD for GXP) Features Drive Type: Front-Wheel Drive (FWD) Fluid Specifications Transmission Fluid Type: Dexron VI Automatic Transmission Fluid (ATF) Fluid Capacities Transmission Fluid Capacity: Approx. 11.0-13.5 quarts (depending on variant and service) 📐 Dimensions Exterior Length: Approx. 199.7 inches Width: Approx. 71.7 inches Height: Approx. 57.4 inches Wheelbase: Approx. 110.5 inches Weights Curb Weight V6: Approx. 3500-3700 lbs Curb Weight V8: Approx. 3800-4000 lbs Cargo Trunk Volume: Approx. 16.6 cubic feet 🛡️ Safety Features Ratings NHTSA Front Driver: 5 Stars (2008 Model Year) NHTSA Front Passenger: 5 Stars (2008 Model Year) NHTSA Side Driver: 5 Stars (2008 Model Year) NHTSA Side Rear Passenger: 5 Stars (2008 Model Year) IIHS Front Small Overlap: Not Rated (Vehicle Design Pre-dates Requirement) IIHS Side Impact: Good (2008 Model Year) Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Standard Traction Control System (TCS) Stability Control: Available StabiliTrak Electronic Stability Control Passive Features Airbags Front: Standard Dual Frontal Airbags Airbags Side: Standard Front Seat-Mounted Side-Impact Airbags Airbags Side Curtain: Available Roof-Mounted Side-Curtain Airbags (Front and Rear) Seat Belts: 3-point seat belts with pretensioners for all seating positions. 💡 Technology Features Infotainment Head Unit Options: AM/FM stereo with CD player, optional MP3 playback, steering wheel audio controls, optional premium sound systems (e.g., Monsoon). Auxiliary Input: Optional auxiliary audio input jack. Navigation: Optional factory-installed GPS navigation system. Driver Assistance Cruise Control: Standard Cruise Control. Parking Assist: Optional Rear Parking Assist (Ultrasonic sensors). Connectivity Bluetooth: Optional Bluetooth hands-free calling system (OnStar integration may be present). Onstar: Available OnStar safety and communication system. 🔧 Maintenance Service Intervals Oil Change: Every 7,500 miles or 6 months, or as indicated by the oil life monitor system (OLMS). Tire Rotation: Every 7,500 miles or as part of oil change service. Air Filter Replacement: Every 30,000-50,000 miles, or as needed based on inspection. Coolant Replacement: Initial service at 100,000 miles, then every 50,000 miles thereafter (using DEX-COOL). Fluid Specifications Engine Oil Type: SAE 5W-30 Synthetic Blend or Full Synthetic (API Certified) Engine Coolant Type: GM P/N 12346290 (Orange) DEX-COOL® Long-Life Coolant Brake Fluid Type: DOT 3 or DOT 4 High-Performance Brake Fluid Fluid Capacities Engine Oil Capacity V6: Approx. 4.5 quarts (with filter) Engine Oil Capacity V8: Approx. 5.0 quarts (with filter) Known Issues Common V6 Issues: Lower intake manifold gasket leaks (pre-2005 models, less common in 2008), intermittent 'Service Traction System' message, wheel bearing failure. Common V8 Issues: Active Fuel Management (AFM) lifter noise/failure, potential for oil consumption. General Issues: Interior plastic trim quality concerns, power steering pump whine, HVAC blend door actuator failures. Part Numbers Air...