Lexus GX 2003-2009 HVAC Specifications
Explore the HVAC system specifications for the 2003-2009 Lexus GX 470, including refrigerant type, compressor details, and climate control features. Ideal for maintenance, repair, and upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the HVAC (Heating, Ventilation, and Air Conditioning) system in the 2003-2009 Lexus GX. It is designed to assist users in understanding the system's features, functionality, and maintenance requirements. Use this guide to navigate through the sections, search for specific details, and reference key specifications for quick access.
How to Use
Use the search functionality to find specific terms or components within the document. Enter keywords related to the HVAC system, such as 'blower motor' or 'refrigerant type,' to quickly locate relevant information.
Navigate through the document by scrolling through the sections or using the table of contents. Each section is organized into subsections with detailed points for easy reference.
Key Specifications
Cooling Capacity
18,000 BTU/h
Heating Capacity
24,000 BTU/h
Refrigerant Type
R134a
Airflow Rate
400-600 CFM
Power Consumption
500-700W
Available Specifications
HVAC System Overview
This section provides an overview of the HVAC system in the 2003-2009 Lexus GX, including its components, functionality, and key features. Learn about the system's design and how it ensures optimal climate control for passengers.
HVAC System Overview
This section provides an overview of the HVAC system in the 2003-2009 Lexus GX, including its components, functionality, and key features. Learn about the system's design and how it ensures optimal climate control for passengers.
System Components
- Dual-zone automatic climate control
- Rear-seat air conditioning
- Air filtration system
- Blower motor and fan assembly
- Heater core and evaporator
- Refrigerant type: R134a
Functionality
- Automatic temperature adjustment
- Independent front and rear climate control
- Defrost and defog functions
- Airflow direction control
- Energy-saving mode
- Diagnostic system for troubleshooting
Maintenance and Troubleshooting
This section covers maintenance tips and troubleshooting steps for the HVAC system. Learn how to keep the system running efficiently and address common issues such as weak airflow or unusual noises.
Maintenance and Troubleshooting
This section covers maintenance tips and troubleshooting steps for the HVAC system. Learn how to keep the system running efficiently and address common issues such as weak airflow or unusual noises.
Maintenance Tips
- Replace cabin air filter every 15,000-30,000 miles
- Check refrigerant levels annually
- Inspect blower motor for debris
- Clean evaporator and condenser coils
- Lubricate moving parts as needed
- Test system performance regularly
Common Issues
- Weak airflow due to clogged filters
- Unusual noises from blower motor
- Inconsistent temperature control
- Refrigerant leaks
- Faulty compressor or condenser
- Electrical issues with control panel
Technical Specifications
This section provides detailed technical specifications for the HVAC system, including performance metrics, dimensions, and compatibility details. Use this information for repairs, upgrades, or system analysis.
Technical Specifications
This section provides detailed technical specifications for the HVAC system, including performance metrics, dimensions, and compatibility details. Use this information for repairs, upgrades, or system analysis.
Performance Metrics
- Cooling capacity: 18,000 BTU/h
- Heating capacity: 24,000 BTU/h
- Airflow rate: 400-600 CFM
- Power consumption: 500-700W
- Refrigerant capacity: 1.5-2.0 lbs
- Operating temperature range: -22°F to 140°F
Dimensions and Compatibility
- Blower motor dimensions: 8x6x4 inches
- Evaporator core dimensions: 12x8x3 inches
- Compatible with R134a refrigerant
- Standard electrical system: 12V DC
- Fits Lexus GX 470 models (2003-2009)
- Weight of HVAC assembly: 45 lbs
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Component Specifications
Overview
- Type
- Automatic Climate Control
- Configuration
- Dual-Zone
- Platform
- Integrated with Vehicle Electronics
- Material
- High-Density Plastic and Aluminum
- Location
- Front Dashboard and Rear Ceiling
Dimensions
- Front Unit Width
- 24.5 inches (622 mm)
- Front Unit Height
- 8.7 inches (221 mm)
- Front Unit Depth
- 12.2 inches (310 mm)
- Rear Unit Width
- 18.3 inches (465 mm)
- Rear Unit Height
- 4.5 inches (114 mm)
- Rear Unit Depth
- 6.7 inches (170 mm)
- Duct Diameter
- 2.5 inches (63.5 mm)
Materials
- Housing
- High-Density Plastic
- Evaporator Coil
- Aluminum
- Condenser Coil
- Aluminum
- Blower Motor
- Copper Windings with Steel Housing
- Control Panel
- Polycarbonate with Soft-Touch Coating
Features
- Climate Control
-
- Dual-Zone Temperature Control
- Automatic Air Recirculation
- Pollution Sensor
- Solar Sensor
- Air Distribution
-
- Front and Rear Vents
- Adjustable Airflow Direction
- Rear Ceiling Vents
- Footwell Vents
- Heating
-
- Rapid Heating
- Seat Heating Integration
- Defrost Function
- Rear Window Defogger
- Cooling
-
- Rapid Cooling
- Rear Ceiling Cooling
- Eco Mode
- Auto Start/Stop Function
- Filtration
-
- Cabin Air Filter
- Pollen Filter
- Odor Reduction
Safety Features
- Overheat Protection
-
- Automatic Shutdown
- Temperature Sensors
- Air Quality
-
- CO2 Sensor
- Automatic Recirculation
- System Monitoring
-
- Error Codes Display
- Self-Diagnostic System
Comfort Features
- Temperature Control
-
- Precision Temperature Adjustment
- Memory Settings
- Airflow Control
-
- Variable Fan Speeds
- Quiet Mode
- User interface
-
- Touchscreen Controls
- Voice Command Integration
- Additional Features
-
- Steering Wheel Controls
- Remote Start Climate Control
Accessories
- Filters
-
- Cabin Air Filter
- Pollen Filter
- Activated Carbon Filter
- Controls
-
- Remote Control
- Mobile App Integration
- Steering Wheel Controls
- Upgrades
-
- Ionizer
- Aromatherapy Diffuser
- UV Sterilizer
Maintenance
- Service interval
- Every 15,000 miles or 12 months
- Service Items
-
- Replace Cabin Air Filter
- Inspect Refrigerant Levels
- Check Blower Motor Function
- Clean Evaporator Coil
- Inspect Ducts for Blockages
- Maintenance Notes
- Use only OEM parts for replacements to ensure compatibility and performance.
Warranty
- Basic
- Miles: 50,000Years: 4Coverage: Parts and Labor
- Powertrain
- Miles: 70,000Years: 6Coverage: Compressor and Condenser
- Corrosion
- Miles: UnlimitedYears: 6Coverage: Housing and Ducts
- Emissions
- Miles: 80,000Years: 8Coverage: Refrigerant System
Production Details
- Manufacturer
- Denso Corporation
- Manufacturing Process
-
- Injection Molding
- Robotic Assembly
- Precision Welding
- Quality Control
- Testing: Pressure Testing, Leak Detection, Performance CalibrationCertifications: ISO 9001, ISO 14001
- Sustainability Practices
-
- Recyclable Materials
- Energy-Efficient Production
- Low-Emission Refrigerant
- Production Metrics
- Units Per Day: 1,200Defect Rate: 0.02%
Service Information for HVAC Service
Maintenance and service requirements specific to the HVAC system
- Replace Cabin Air Filter
- Inspect Refrigerant Levels
- Check Blower Motor Function
- Clean Evaporator Coil
- Inspect Ducts for Blockages
Ensure all connections are secure and free of debris.
- Replace Pollen Filter
- Check Compressor Function
- Inspect Condenser Coil
- Test Climate Control Sensors
- Verify Airflow Distribution
Use diagnostic tools to verify system performance.
- Replace Refrigerant
- Inspect and Clean All Ducts
- Check Electrical Connections
- Test Heating and Cooling Performance
- Replace Blower Motor if Necessary
Major service interval requires specialized equipment and trained technicians.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Is the HVAC system compatible with aftermarket parts for the 2003-2009 Lexus GX?
Is the HVAC system compatible with aftermarket parts for the 2003-2009 Lexus GX?
The HVAC system in the 2003-2009 Lexus GX is designed to work with OEM parts, but many aftermarket components are compatible. Ensure the parts meet the specifications, including refrigerant type (R134a), voltage requirements, and physical dimensions. Always verify compatibility with the vehicle’s VIN and consult a professional if unsure.
Q2 What maintenance is required for the HVAC system in the 2003-2009 Lexus GX?
What maintenance is required for the HVAC system in the 2003-2009 Lexus GX?
Regular maintenance includes inspecting and replacing the cabin air filter every 15,000-30,000 miles, checking refrigerant levels annually, and ensuring the compressor and blower motor function properly. Clean the evaporator and condenser coils as needed. Schedule professional inspections to address leaks, unusual noises, or reduced cooling/heating performance.
Q3 How do I replace the cabin air filter in the 2003-2009 Lexus GX?
How do I replace the cabin air filter in the 2003-2009 Lexus GX?
Locate the filter housing behind the glove compartment. Open the glove box, remove the stopper, and gently lower it. Unclip the filter cover, remove the old filter, and insert the new one, ensuring the airflow arrow points downward. Reassemble the glove box and test the HVAC system.
Q4 Why is my HVAC system blowing warm air in my 2003-2009 Lexus GX?
Why is my HVAC system blowing warm air in my 2003-2009 Lexus GX?
Common causes include low refrigerant levels, a faulty compressor, or a clogged condenser. Check for leaks, ensure the compressor engages, and inspect the condenser for debris. If issues persist, consult a professional to diagnose electrical or mechanical failures.
Q5 How can I optimize the HVAC system’s performance in my 2003-2009 Lexus GX?
How can I optimize the HVAC system’s performance in my 2003-2009 Lexus GX?
Keep the system clean by regularly replacing the cabin air filter and cleaning the condenser. Use the recirculation mode to reduce strain on the system. Park in shaded areas to minimize heat buildup. Schedule annual inspections to ensure refrigerant levels and components are in optimal condition.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Lexus GX 470 Service Manual (2003-2009)
Coming SoonComprehensive guide covering HVAC system maintenance, troubleshooting, and repair procedures for the Lexus GX 470.
Technical Service Bulletin: HVAC System Updates
Coming SoonDetails updates and fixes for common HVAC issues in the 2003-2009 Lexus GX models.
Lexus GX HVAC Parts Catalog
Coming SoonCatalog of OEM and compatible aftermarket parts for the HVAC system in the 2003-2009 Lexus GX.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
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