The 2003 Buick Rendezvous is a mid-size crossover SUV designed for families and individuals seeking versatile utility and comfort. Built on the GM U-body platform, it offers a comfortable ride, a spacious interior, and distinctive styling, with optional third-row seating enhancing its practicality. Known for its upscale amenities and smooth performance, the Rendezvous aimed to blend the comfort of a sedan with the utility of an SUV, providing a compelling option in a competitive market segment that included vehicles like the Ford Explorer and Toyota Highlander. This service manual provides comprehensive, dealer-level repair and maintenance information for all aspects of the Buick Rendezvous. It covers engine mechanicals, the 4T65-E automatic transmission, chassis and suspension systems, brakes, electrical components, climate control, and safety systems. Included are detailed procedures for scheduled maintenance, diagnostics, component repair, and rebuilds, along with wiring schematics and technical specifications. This manual is an essential resource for owners, mechanics, and technicians to ensure the proper upkeep and repair of their vehicle, enabling efficient troubleshooting and maintenance. 🏷️ Basic Information Identification Make: Buick Model: Rendezvous Year: 2003 Generation First Generation: 2002-2007 Codes Platform Code: GM U-body (Long Wheelbase) 👋 Introduction Market Position Vehicle Segment: Mid-size Crossover SUV Target Audience: Families, individuals seeking versatile utility and comfort Competitive Analysis Key Competitors: Ford Explorer, Toyota Highlander, Honda Pilot, Nissan Pathfinder Key Features Manual Value Proposition: Authoritative, dealer-level repair information enabling DIY maintenance and repair, saving on labor costs. Vehicle Distinguishing Features: Comfortable ride, spacious interior, optional third-row seating, distinctive styling. 📋 Manual Details Coverage Areas Coverage Scope: All Models & All Repairs A-Z Page Count Page Count Estimated: Extensive (Specific count not provided, but implied to be comprehensive) Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Full Engine Service, Rebuild, Diagnostics Engine Control: ECM, PCM, Sensors, Actuators, Fuel Injection, Ignition Control Transmission Automatic: 4T65-E: Overhaul, Diagnostics, Control System Chassis Suspension: Front & Rear Suspension, Steering, Wheel Bearings, Alignment Brakes: Hydraulic System, ABS, Traction Control, Parking Brake, Disc/Drum Service Electrical System: Wiring Schematics, Lighting, Power Distribution, Fuses, Relays Climate Control: HVAC System, A/C Compressor, Refrigerant, Heater Core Safety Systems: Supplemental Restraint System (Airbags), Seat Belts, Immobilizer Body Exterior: Doors, Hood, Liftgate, Bumpers, Glass, Mirrors Body Interior: Seating, Trim Panels, Instrument Panel, Console Emission Control: EVAP System, Catalytic Converter, EGR System Multiplex Communication: CAN Bus Communication, Body Control Module (BCM) Diagnostics Procedures Included Maintenance: Scheduled Maintenance, Oil Changes, Filter Replacements, Fluid Checks Diagnostics: Troubleshooting Guides, Symptom-Based Diagnosis, DTC Retrieval and Interpretation Repair: Step-by-step repair instructions for all covered systems Rebuilds: Engine and Transmission Rebuild procedures Calibration: Sensor and module calibration where applicable Wiring Repairs: Component replacement and harness repair instructions Technical Depth Depth: Factory-level detail for technicians and advanced DIYers 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Fully Printable, High Resolution Images and Diagrams Binding Type Binding: Digital (No physical binding) Paper Type Paper Type: Digital (Not Applicable) Compatibility Software Compatibility: Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac Compatible Requirements Software Requirements: Adobe PDF Reader, Winzip (Free) ⚙️ Engine Specifications Primary Engine Engine Code: LA1 Engine Type: 3.4L V6 (3350cc) OHV Bore X Stroke: 92.0 mm x 84.0 mm Compression Ratio: 9.4:1 Horsepower: 185 hp @ 5200 rpm Torque: 210 lb-ft @ 4000 rpm Fuel System Fuel Delivery: Sequential Port Fuel Injection (SFI) Fuel Type: Unleaded Gasoline Cooling System Cooling Capacity: Approximately 12.5 quarts (11.8 Liters) Lubrication Oil Capacity: 5.0 quarts (4.7 Liters) with filter Recommended Oil Viscosity: SAE 5W-30 🔧 Transmission Standard Transmission Type: 4-Speed Automatic Overdrive (4T65-E) Optional Optional Transmission: N/A for 2003 Model Year Features Traction Control System: Available with Traction Control (TC) Fluid Specifications Transmission Fluid Type: Dexron III (or Dexron VI compatible) Fluid Capacity Transmission Fluid Capacity: Approximately 11.0 pints (5.2 Liters) for dry fill 📐 Dimensions Exterior Wheelbase: 113.3 inches (2878 mm) Length: 192.4 inches (4887 mm) Width: 73.7 inches (1872 mm) Height: 67.3 inches (1709 mm) Interior Passenger Volume: Approx. 108.6 cubic feet (3075 liters) Cargo Cargo Volume Behind 2Nd Row: Approx. 39.0 cubic feet (1104 liters) Cargo Volume Behind 3Rd Row: Approx. 12.2 cubic feet (345 liters) (if equipped with optional 3rd row) Weights Curb Weight: Approximately 4100-4300 lbs (1860-1950 kg) depending on configuration Gross Vehicle Weight Rating: Approximately 5400-5600 lbs (2450-2540 kg) 🛡️ Safety Features Ratings NHTSA Frontal Crash Rating: 5-Star (Driver & Passenger) NHTSA Side Impact Rating: 5-Star (Front & Rear Passenger) Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Available Traction Control (TC) Passive Features Airbags: Dual Frontal Airbags, Available Side-Impact Airbags Seatbelts: 3-point seatbelts with pretensioners for front seats 💡 Technology Features Infotainment Audio System: AM/FM Stereo with CD Player, Optional Premium Audio System, Optional Rear Seat Entertainment. Navigation: Optional Factory Navigation System. Driver Assistance Cruise Control:...