Lexus HS 2010-2012 HVAC Specifications
Lexus HS 2010-2012

Lexus HS 2010-2012 HVAC Specifications

Explore the detailed HVAC system specifications for the 2010-2012 Lexus HS. Learn about components, performance metrics, maintenance tips, and repair guidelines to optimize your vehicle's climate control system.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the HVAC (Heating, Ventilation, and Air Conditioning) system in the 2010-2012 Lexus HS. It is designed to assist users in understanding the system's features, functionality, and maintenance requirements. Use this guide to navigate through sections, search for specific details, and reference key specifications quickly.

How to Use

Use the search functionality to locate specific terms or components within the document. Enter keywords related to the HVAC system, such as 'blower motor' or 'refrigerant type,' to find 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

14,000 BTU/h

Heating Capacity

16,000 BTU/h

Refrigerant Type

R134a

Airflow Rate

400-500 CFM

Noise Level

35-45 dB

Available Specifications

HVAC System Overview

This section provides a high-level overview of the HVAC system in the 2010-2012 Lexus HS, including its components, functionality, and key features. Learn about the system's design and how it enhances passenger comfort.

System Components
  • Dual-zone automatic climate control
  • Electrically controlled compressor
  • High-capacity blower motor
  • Air filtration system with pollen filter
  • Rear-seat ventilation ducts
  • Automatic defogging system
Functionality
  • Temperature control for driver and front passenger
  • Automatic air recirculation mode
  • Defrost and defog settings
  • Energy-saving ECO mode
  • Adjustable fan speed and airflow direction
  • Integrated solar sensor for automatic temperature adjustment

Maintenance and Troubleshooting

This section covers maintenance tips and troubleshooting guidelines for the HVAC system. Learn how to keep the system running efficiently and address common issues.

Maintenance Tips
  • Replace cabin air filter every 15,000-20,000 miles
  • Check refrigerant levels annually
  • Inspect blower motor and fan for debris
  • Clean air vents and ducts regularly
  • Ensure proper functioning of temperature sensors
  • Schedule professional HVAC system inspections
Common Issues
  • Weak airflow due to clogged filters
  • Unusual noises from blower motor
  • Inconsistent temperature control
  • Fogging or condensation on windows
  • Refrigerant leaks
  • Electrical faults in control panel

Technical Specifications

This section provides detailed technical specifications for the HVAC system, including performance metrics, refrigerant type, and electrical requirements.

Performance Metrics
  • Cooling capacity: 14,000 BTU/h
  • Heating capacity: 16,000 BTU/h
  • Airflow rate: 400-500 CFM
  • Noise level: 35-45 dB
  • Energy efficiency ratio (EER): 10.5
  • Compressor type: Scroll
Refrigerant and Electrical Details
  • Refrigerant type: R134a
  • Refrigerant capacity: 1.2 lbs
  • Voltage: 12V DC
  • Compressor power consumption: 400W
  • Blower motor power: 150W
  • Control system: Microprocessor-based

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 Console

Dimensions

Evaporator Unit Length
12.5 inches / 31.75 cm
Evaporator Unit Width
8.2 inches / 20.83 cm
Evaporator Unit Height
6.7 inches / 17.02 cm
Condenser Unit Length
18.3 inches / 46.48 cm
Condenser Unit Width
10.5 inches / 26.67 cm
Condenser Unit Height
1.2 inches / 3.05 cm
Compressor Unit Diameter
5.9 inches / 15 cm

Materials

Evaporator Core
Aluminum
Condenser Core
Aluminum
Compressor Body
Cast Aluminum
Ducting
High-Density Plastic
Blower Motor
Copper Windings with Steel Housing

Features

Climate Control
  • Dual-Zone Temperature Control
  • Automatic Air Recirculation
  • Pollution Sensor
  • Humidity Control
Air Distribution
  • Multi-Port Airflow
  • Rear Ventilation Ducts
  • Adjustable Side Vents
  • Defrost Mode
Filtration
  • Cabin Air Filter
  • Pollen Filter
  • Activated Carbon Filter
Performance
  • High-Efficiency Compressor
  • Variable Blower Speed
  • Eco Mode
User interface
  • Touchscreen Controls
  • Voice Command Integration
  • Steering Wheel Controls

Safety Features

Overheat Protection
  • Compressor Shutoff at High Temperatures
  • Thermal Fuse Protection
Air Quality
  • Automatic Recirculation in Polluted Air
  • CO2 Level Monitoring
System Monitoring
  • Refrigerant Pressure Sensor
  • Blower Motor Overload Protection

Comfort Features

Temperature Control
  • Precision Dual-Zone Adjustment
  • Quick Cooling Mode
  • Heated Seats Integration
Airflow Management
  • Multi-Directional Vents
  • Quiet Operation Mode
  • Rear Passenger Controls
Seasonal Adaptation
  • Automatic Defrost in Winter
  • Humidity Control in Summer
User Customization
  • Memory Settings for Drivers
  • Personalized Airflow Patterns

Accessories

Filters
  • Cabin Air Filter
  • Pollen Filter
  • Activated Carbon Filter
Controls
  • Touchscreen Interface
  • Steering Wheel Controls
  • Rear Console Controls
Upgrades
  • Ionizer Air Purifier
  • Heated Steering Wheel Integration
  • Advanced Humidity Sensor

Maintenance

Service interval
Every 15,000 miles or 12 months
Service Items
  • Inspect Refrigerant Levels
  • Check Compressor Operation
  • Replace Cabin Air Filter
  • Clean Evaporator Core
  • Inspect Condenser for Damage
Maintenance Notes
Use only manufacturer-approved refrigerants and lubricants.

Warranty

Basic Warranty
Miles: 50,000
Years: 4
Coverage: Parts and Labor
Compressor Warranty
Miles: 100,000
Years: 8
Coverage: Parts Only
Evaporator Warranty
Miles: 100,000
Years: 8
Coverage: Parts Only
Labor Warranty
Miles: 50,000
Years: 4
Coverage: Labor Only

Production Details

Manufacturer
Denso Corporation
Manufacturing Process
  • Precision CNC Machining
  • Automated Assembly
  • Leak Testing
Quality Control
Testing: Pressure Testing, Thermal Cycling, Vibration Testing
Certifications: ISO 9001, ISO 14001
Sustainability Practices
  • Recyclable Materials
  • Low-Emission Refrigerants
  • Energy-Efficient Production
Production Metrics
Units Per Year: 500,000
Defect Rate: 0.01%

Service Information for HVAC Service

Maintenance and service requirements specific to the HVAC system

15,000
12
  • Inspect Refrigerant Levels
  • Check Compressor Operation
  • Replace Cabin Air Filter
  • Clean Evaporator Core
  • Inspect Condenser for Damage

Ensure all connections are secure and free of leaks.

30,000
24
  • Test Blower Motor Operation
  • Inspect Ducting for Blockages
  • Check Electrical Connections
  • Verify Temperature Sensor Accuracy

Use diagnostic tools to verify system performance.

60,000
48
  • Flush Refrigerant System
  • Replace Compressor Oil
  • Inspect and Clean Condenser
  • Test Pressure Sensors
  • Verify System Efficiency

Major service requires specialized equipment and trained technicians.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the compatibility details for the HVAC system in 2010-2012 Lexus HS models?

The HVAC system in 2010-2012 Lexus HS models is designed to be compatible with the vehicle's specific electrical and mechanical architecture. It integrates seamlessly with the car's climate control interface and supports dual-zone automatic temperature control. Replacement parts must match OEM specifications, including refrigerant type (R134a) and electrical connectors, to ensure proper functionality.

Q2

What maintenance does the HVAC system require in a 2010-2012 Lexus HS?

Regular maintenance for the HVAC system includes inspecting and replacing the cabin air filter every 15,000-20,000 miles. The refrigerant levels should be checked annually, and the system should be inspected for leaks or unusual noises. Cleaning the evaporator and condenser coils every two years is also recommended to maintain optimal performance and efficiency.

Q3

How do I replace the cabin air filter in a 2010-2012 Lexus HS?

To replace the cabin air filter, locate the filter housing behind the glove compartment. Remove the glove compartment by unscrewing or unclipping it. Open the filter housing cover, remove the old filter, and insert the new one, ensuring it is oriented correctly. Reassemble the glove compartment and test the HVAC system to confirm proper airflow.

Q4

What should I do if the HVAC system in my Lexus HS is not cooling properly?

If the HVAC system is not cooling, first check the refrigerant levels and inspect for leaks. Ensure the compressor is engaging when the AC is turned on. Clean the condenser and evaporator coils if they are dirty. If the issue persists, inspect the blower motor, fuses, and electrical connections or consult a professional for further diagnosis.

Q5

How can I optimize the performance of the HVAC system in my Lexus HS?

To optimize HVAC performance, regularly clean or replace the cabin air filter. Ensure the condenser and evaporator coils are free of debris. Use the recirculation mode to reduce the load on the system. Park in shaded areas to minimize heat buildup, and schedule annual inspections to maintain refrigerant levels and system efficiency.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

2010-2012 Lexus HS HVAC Service Manual

Coming Soon

This manual provides detailed instructions for servicing and repairing the HVAC system, including component locations and troubleshooting steps.

Technical Service Bulletin: HVAC System Updates

Coming Soon

This bulletin outlines known issues and updates for the HVAC system in 2010-2012 Lexus HS models, including software patches and part replacements.

Lexus HS HVAC Parts Catalog

Coming Soon

This catalog lists all OEM HVAC components for 2010-2012 Lexus HS models, including part numbers and compatibility details.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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