🏷️ Basic Information Identification Make: Buick Model: Terraza Year: 2007 Generation Generation Identifier: First Generation (UG) Codes Platform Code: GM U-body 👋 Introduction Market Position Vehicle Segment: Mid-size Crossover SUV (MPV platform) Competitive Analysis Key Competitors: Chevrolet Uplander, Pontiac Montana SV6, Saturn Relay, Chrysler Pacifica, Dodge Grand Caravan, Ford Freestar Key Features Design Philosophy: Family-oriented vehicle with flexible seating and cargo capabilities, built on a minivan platform. Manual Advantage: Provides comprehensive, factory-derived information enabling do-it-yourself repairs and maintenance, saving significant costs compared to professional services. 📋 Manual Details Coverage Areas Primary Coverage Areas: Engine, Transmission, Brakes, Suspension, Steering, HVAC, Electrical System, Bodywork, Interior, Diagnostics, Maintenance Page Count Estimated Page Count: Extensive (typically 1500+ pages for full service manuals) Manual Type Manual Type: Service and Repair Manual Language Language: English Format Format: PDF Download (Digital) 📖 Manual Coverage Systems Covered Engine System: Detailed diagnostics, overhaul procedures, component identification, timing belt/chain service, fuel system, cooling system, lubrication system, exhaust system. Transmission System: Automatic transmission (4T65-E) service, fluid changes, torque converter procedures, shift linkage adjustment, internal component overhauls. Braking System: Front and rear brake pad replacement, caliper service, rotor resurfacing/replacement, ABS system diagnostics and bleeding procedures. Suspension Steering: Strut replacement, ball joint service, tie rod end replacement, power steering system diagnostics, wheel alignment specifications. HVAC System: A/C system charging and recovery, component replacement (compressor, condenser, evaporator), heater core service, climate control diagnostics. Electrical System: Wiring diagrams, fuse box locations, relay identification, power windows, door locks, lighting systems, audio system troubleshooting. Body Interior: Door panel removal, seat adjustment mechanisms, interior trim panel replacement, exterior body panel alignment and repair, bumper service. Procedures Included Routine Maintenance: Oil and filter changes, air filter replacement, spark plug replacement, tire rotation, fluid level checks and top-offs. Troubleshooting: Diagnostic charts, symptom-based troubleshooting guides, OBD-II code explanations and resolution paths. Component Replacement: Detailed step-by-step instructions for replacing major and minor components across all vehicle systems. Rebuilding Procedures: Comprehensive overhaul instructions for engines and transmissions where applicable. Technical Depth Diagnostic Capabilities: Advanced diagnostics for engine control modules (ECM), transmission control modules (TCM), anti-lock braking system (ABS), and body control modules (BCM). Special Tools: Identification of required special tools and equipment for specific repair procedures. 📊 Manual Specifications File Format File Format Details: Searchable PDF, allowing for quick text retrieval of specific topics and part numbers. Print Quality Print Quality Considerations: Optimized for digital viewing and printing, ensuring clarity of diagrams and text. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type Considerations: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: 3.9L V6 OHV 12-Valve Engine Code: LZ9 Performance Horsepower Max: 240 hp @ 6400 rpm Torque Max: 240 lb-ft @ 4400 rpm Fuel System Fuel Delivery: Sequential Electronic Fuel Injection (SFI) Fuel Type: Unleaded Gasoline 🔧 Transmission Standard Transmission Type: 4-Speed Automatic Transmission Model: 4T65-E Features Drivetrain: Front-Wheel Drive (FWD) 📐 Dimensions Exterior Length: 201.1 inches (5108 mm) Width: 78.3 inches (1989 mm) Height: 69.1 inches (1755 mm) Wheelbase: 121.5 inches (3086 mm) Cargo Cargo Volume Behind 3Rd Row: 23.0 cubic feet (651 liters) Cargo Volume Behind 2Nd Row: 73.1 cubic feet (2070 liters) Cargo Volume Behind 1St Row: 136.7 cubic feet (3871 liters) Weights Curb Weight Approx: 4,490 lbs (2037 kg) Gross Vehicle Weight Rating Gvwr: 5,842 lbs (2650 kg) 🛡️ Safety Features Ratings NHTSA Frontal Impact Driver: 5-Star (2007 Model Year) NHTSA Frontal Impact Passenger: 5-Star (2007 Model Year) NHTSA Side Impact Front Seat: 5-Star (2007 Model Year) NHTSA Side Impact Rear Seat: 4-Star (2007 Model Year) IIHS Head Restraint Eval: Good (2007 Model Year) Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Available Traction Control System (TCS) Passive Features Airbags: Standard front airbags, available side-impact airbags 💡 Technology Features Infotainment Available Infotainment Features: AM/FM/CD audio system, optional rear-seat entertainment system (DVD player and screen). Driver Assistance Available Driver Assistance: Rear parking assist sensors were optional on some trims. Connectivity Available Connectivity: No advanced Bluetooth or USB connectivity standard; auxiliary audio input may be available on premium audio systems. 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles or 6 months (synthetic blend oil recommended) Engine Air Filter Replacement: Every 30,000 miles or 2 years Spark Plug Replacement: Every 100,000 miles (use ACDelco Professional Iridium) Fluid Specifications Engine Oil Type Capacity: SAE 5W-30, 4.5 US quarts (4.2 liters) with filter change Transmission Fluid Type: Dexron VI Automatic Transmission Fluid (ATF) Coolant Type: GM P/N 12346290 (Orange) or equivalent Dex-Cool Extended Life Antifreeze/Coolant Known Issues Common Concern 1: Transmission solenoid issues leading to harsh shifting or failure to engage gears. Common Concern 2: Rattling noise from the exhaust manifold heat shields, often requiring replacement or securing. Common Concern 3: Power door lock actuators can fail, preventing doors from locking or unlocking. Common Concern 4: Water pump leaks, particularly around the seal and gasket...