🏷️ Basic Information Identification Make: Lexus Model: RX300 Year: 2003 Codes Chassis Code: XU10 Platform: Toyota Highlander (XU20) platform sibling 👋 Introduction Market Position Segment: Luxury Compact SUV Usp: Blend of Lexus luxury, comfort, reliability, and SUV practicality, based on a car-like unibody platform. Competitive Analysis Competitors 2003: Acura MDX, BMW X5, Mercedes-Benz ML-Class, Volvo XC90, Cadillac SRX. Key Features Powertrain Layout: Available in Front-Wheel Drive (FWD) and All-Wheel Drive (AWD). Luxury Appointments: Leather upholstery, premium audio, optional navigation system, sunroof. Ride Comfort: Car-based platform provides a more comfortable and car-like ride compared to body-on-frame SUVs. 📋 Manual Details Coverage Areas Systems Covered: Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, HVAC, Electrical System, Body, Interior, Diagnostics, Maintenance, Repair Procedures, Wiring Diagrams Page Count Estimated Pages: Over 2000 pages (typical for official factory service manuals) Manual Type Type: Official Factory Service & Repair Manual Language Language: English Format Format: Software/Digital (Downloadable PDF) 📖 Manual Coverage Systems Covered Engine: Detailed diagnostics, disassembly, assembly, inspection, repair for 1MZ-FE engine. Transmission: U151F 5-speed automatic transmission: diagnostics, disassembly, assembly, fluid service, torque converter. Drivetrain: All-Wheel Drive (AWD) system including transfer case, differential, axles, driveshafts, viscous coupling unit. Suspension: Front MacPherson strut, rear multi-link suspension: component inspection, replacement, alignment specifications. Steering: Power assisted rack and pinion steering system: diagnostics, components, fluid service. Brakes: Front vented discs, rear solid discs, ABS, EBD: brake caliper overhaul, rotor replacement, fluid bleeding, component diagnostics. HVAC: Air conditioning, heater, climate control: refrigerant handling, component testing, blower motor, evaporator, condenser. Electrical: Complete electrical system, battery, charging system, starting system, lighting, wipers, power accessories, fuses, relays, ECUs. Body: Body panel removal/installation, doors, hood, tailgate, bumpers, glass, mirrors, interior trim. Diagnostics: OBD-II diagnostic trouble codes (DTCs), troubleshooting flowcharts, sensor data interpretation. Procedures Included Maintenance: Scheduled maintenance intervals, oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspections. Repair: Detailed step-by-step repair instructions for all major components and systems, including engine rebuilds, transmission overhauls, suspension upgrades, and electrical system repairs. Troubleshooting: Systematic diagnostic procedures for identifying and resolving common and uncommon faults, including symptom-based troubleshooting guides. Disassembly Assembly: Comprehensive guides for removing and reinstalling all vehicle components, with torque specifications and procedural notes. Technical Depth Depth: Factory-level diagnostic procedures, component specifications, tolerances, and repair techniques, suitable for professional technicians and advanced DIY enthusiasts. 📊 Manual Specifications File Format File Type: PDF Print Quality Resolution: High-resolution, suitable for printing individual pages or sections. Binding Type Binding: N/A (Digital Software) Paper Type Paper Type: N/A (Digital Software) Searchability Text Search: Fully searchable text for quick information retrieval. Navigation Hyperlinks: Likely includes internal hyperlinks for easy navigation between sections. ⚙️ Engine Specifications Primary Engine Engine Code: 1MZ-FE Configuration: 3.0L V6, SOHC, 24 valves Bore X Stroke: 87.5 mm x 83.0 mm Compression Ratio: 9.6:1 Performance Horsepower Hp: 201 hp @ 5,600 rpm (approx.) Torque Lb Ft: 207 lb-ft @ 4,000 rpm (approx.) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Unleaded gasoline, 87 octane (91 octane recommended for optimal performance) Ignition System Spark Plugs: Iridium-tipped, typically NGK BKR6EGP or equivalent (refer to manual for exact part numbers). Engine Management ECU: Engine Control Unit (ECU) with integrated diagnostics. 🔧 Transmission Standard Type: U151F 5-speed Automatic Optional Type: N/A (5-speed automatic was standard for 2003 model year) Features Sequential Shift: Sequential Shiftmatic manual mode (shifter lever operated). AWD System: Active-on-demand AWD system (standard on most models). Fluid Specifications Transmission Fluid: Toyota ATF WS (World Standard) or equivalent (confirm exact specification in manual, often DEXRON III/VI compatible but WS is preferred). Fluid Capacity Capacity Quarts: Approximately 3.5-4.0 quarts for a fluid change (refer to manual for exact capacity). 📐 Dimensions Exterior Length Inches: 183.1 Width Inches: 71.5 Height Inches: 66.1 Wheelbase Inches: 103.0 Ground Clearance Inches: 7.5 Weights Curb Weight Lbs: 3,700 - 3,900 lbs (depending on FWD/AWD) Towing Capacity Lbs: 3,500 lbs (when properly equipped) Cargo Cargo Volume Cu Ft Behind 2Nd Row: 38.3 Cargo Volume Cu Ft Total: 78.8 Wheels Tires Standard Wheel Size: 16-inch alloy Optional Wheel Size: 17-inch alloy Standard Tire Size: 225/70R16 Optional Tire Size: 225/65R17 Bolt Pattern: 5 x 114.3 mm (5 x 4.5 inches) 🛡️ Safety Features Ratings NHTSA Front Driver: 5-star (for 2003 model year) NHTSA Front Passenger: 5-star (for 2003 model year) IIHS Frontal Offset: Good (for models equipped with side airbags) Active Features ABS: Standard Anti-lock Braking System (ABS) Ebd: Standard Electronic Brake-force Distribution (EBD) Traction Control: Standard Traction Control System (TRAC) Passive Features Airbags Front: Standard dual front SRS airbags Airbags Side: Optional front side-impact airbags and front and rear side curtain airbags. Seatbelts: 3-point front and rear seatbelts with pretensioners and force limiters. Rollover Protection: Designed with consideration for rollover stability, often augmented by side curtain airbags. 💡 Technology Features Infotainment Audio System: Premium Mark Levinson audio system (optional on many trims), typically 7 speakers....