Cadillac DTS 2006-2011 HVAC Specifications
Cadillac DTS 2006-2011

Cadillac DTS 2006-2011 HVAC Specifications

Explore the comprehensive HVAC specifications for the 2006-2011 Cadillac DTS, including air conditioning, heating, ventilation, and climate control systems. This guide is essential for maintenance, repairs, and upgrades, providing detailed technical data for technicians and owners.

Updated

Overview Specifications

This document provides detailed specifications and operational information about the HVAC (Heating, Ventilation, and Air Conditioning) system for the 2006-2011 Cadillac DTS. It includes system components, maintenance tips, troubleshooting guides, and key technical specifications. Use this guide to understand your vehicle's climate control features, perform routine checks, and address common issues effectively. Whether you're a car enthusiast or a professional mechanic, this resource will help you maintain optimal performance and comfort in your Cadillac DTS.

How to Use

Use the search functionality to quickly find specific HVAC components or troubleshooting tips. Enter keywords such as 'blower motor' or 'temperature control' to locate relevant sections. This feature is especially useful for pinpointing information without browsing through the entire document.

Navigate through the document using the section titles and subsections. Each major section covers a different aspect of the HVAC system, from components to maintenance. Click on the subsection titles to expand and view detailed points and technical specifications.

Key Specifications

Refrigerant Type

R134a

Blower Motor Power

12V DC

Cabin Air Filter

Replace every 15,000 miles

Temperature Range

60°F to 90°F

System Type

Dual-zone automatic

Available Specifications

HVAC System Components

This section breaks down the key components of the Cadillac DTS HVAC system, including the blower motor, climate control unit, refrigerant lines, and air filters. Understanding these parts will help you identify issues and perform routine maintenance more effectively.

Blower Motor and Fan
  • Variable-speed blower motor for precise airflow control
  • Located under the dashboard on the passenger side
  • Common issues include motor failure and noisy operation
  • Regular cleaning extends motor lifespan
Climate Control Unit
  • Dual-zone automatic climate control system
  • Includes digital temperature display and controls
  • Sensors monitor cabin and exterior temperatures
  • Malfunctions may require system recalibration
Refrigerant Lines and Compressor
  • Uses R134a refrigerant for cooling
  • Aluminum refrigerant lines for durability
  • Compressor located at the engine front
  • Check for leaks and proper refrigerant levels annually

Operation and Controls

Learn how to operate the HVAC system efficiently. This section covers the control panel features, temperature adjustment, air distribution modes, and how to use the defrost and recirculation functions effectively.

Control Panel Features
  • Power button to turn the system on/off
  • Temperature adjustment buttons for driver and passenger
  • Airflow direction controls (face, feet, windshield)
  • Auto mode for automatic temperature regulation
Defrost and Recirculation
  • Defrost mode clears windshield fog quickly
  • Recirculation button for cabin air reuse
  • Use recirculation in dusty or polluted environments
  • Avoid prolonged use to prevent window fogging

Maintenance and Troubleshooting

Proper maintenance ensures the longevity of your HVAC system. This section provides tips for routine checks, filter replacement, and troubleshooting common issues like weak airflow or unusual noises.

Routine Maintenance
  • Replace cabin air filter every 15,000 miles
  • Inspect refrigerant levels annually
  • Clean blower motor and vents periodically
  • Check for leaks in refrigerant lines
Common Issues and Fixes
  • Weak airflow: Check for clogged filters or blower motor issues
  • Unusual noises: Inspect blower motor and fan blades
  • Inconsistent temperature: Recalibrate climate control unit
  • AC not cooling: Check refrigerant levels and compressor

Component Specifications

Overview

Type
Automatic Climate Control System
Configuration
Dual-Zone Climate Control
Platform
GM Sigma Platform
Material
High-Density Plastic and Aluminum
Location
Front Dashboard and Rear Console

Dimensions

Blower Motor Diameter
6.5 inches / 165 mm
Evaporator Core Length
12.8 inches / 325 mm
Condenser Core Width
22.4 inches / 569 mm
Compressor Height
5.9 inches / 150 mm
Heater Core Thickness
1.2 inches / 30 mm
Air Duct Diameter
3.1 inches / 80 mm
Control Panel Width
8.3 inches / 210 mm

Materials

Blower Motor
High-Strength Plastic and Copper Windings
Evaporator Core
Aluminum Fins and Copper Tubing
Condenser Core
Aluminum Fins and Tubes
Compressor
Cast Aluminum Housing
Heater Core
Brass and Aluminum Construction

Features

Climate Control
  • Dual-Zone Temperature Control
  • Automatic Air Recirculation
  • Solar Sensor Compensation
  • Humidity Control
Air Distribution
  • Front and Rear Vents
  • Adjustable Airflow Direction
  • Defrost Mode
  • Footwell Airflow
Filtration
  • Cabin Air Filter
  • Pollen and Dust Filtration
  • Odor Reduction
Performance
  • High-Efficiency Compressor
  • Variable Speed Blower Motor
  • Quick Cooling and Heating
User interface
  • Touchscreen Controls
  • Voice Command Integration
  • Steering Wheel Controls

Safety Features

Overheat Protection
  • Compressor Shutoff at High Temperatures
  • Thermal Fuse Protection
Air Quality
  • Carbon Monoxide Detection
  • Automatic Recirculation in Polluted Air
System Monitoring
  • Low Refrigerant Warning
  • Filter Replacement Indicator

Comfort Features

Temperature Control
  • Precision Temperature Adjustment
  • Memory Settings for Driver and Passenger
Airflow Management
  • Quiet Operation Mode
  • Even Air Distribution
Convenience
  • Remote Start Climate Control
  • Auto-Defogging
Customization
  • Programmable Climate Profiles
  • Night Mode Dimming

Accessories

Filters
  • Cabin Air Filter
  • Activated Carbon Filter
  • HEPA Filter
Upgrades
  • Rear Seat Climate Control
  • Heated and Cooled Seats
  • Windshield De-Icer
Tools
  • AC Recharge Kit
  • Vacuum Pump for AC Service
  • Manifold Gauge Set

Maintenance

Service interval
Every 15,000 miles or 12 months
Service Items
  • Inspect Refrigerant Levels
  • Check Compressor Operation
  • Clean Evaporator and Condenser Coils
  • Replace Cabin Air Filter
  • Inspect Blower Motor and Fan
Maintenance Notes
Use only R134a refrigerant. Ensure proper lubrication of compressor.

Warranty

Basic Warranty
Miles: 36,000
Years: 3
Coverage: Parts and Labor
Powertrain Warranty
Miles: 100,000
Years: 5
Coverage: Compressor and Condenser
Corrosion Warranty
Miles: 100,000
Years: 6
Coverage: HVAC Housing and Ducts
Emissions Warranty
Miles: 50,000
Years: 4
Coverage: Refrigerant System

Production Details

Manufacturer
General Motors
Manufacturing Process
  • Injection Molding for Plastic Components
  • Extrusion for Aluminum Fins
  • Precision Machining for Compressor
Quality Control
Pressure Testing: All HVAC Components
Leak Detection: Refrigerant System
Performance Testing: Full System Bench Testing
Sustainability Practices
  • Recyclable Materials
  • Low-Emission Refrigerant
  • Energy-Efficient Manufacturing
Production Metrics
Units Per Year: 150,000
Defect Rate: 0.5%
Energy Consumption: 15 kWh per Unit

Service Information for HVAC Service

Maintenance and service requirements specific to the HVAC system

15,000
12
  • Inspect Refrigerant Levels
  • Check Compressor Operation
  • Clean Evaporator and Condenser Coils
  • Replace Cabin Air Filter
  • Inspect Blower Motor and Fan

Ensure proper refrigerant type (R134a) is used.

30,000
24
  • Test AC System Performance
  • Inspect HVAC Ducts for Leaks
  • Check Electrical Connections
  • Lubricate Compressor Shaft

Use a vacuum pump for refrigerant system evacuation.

60,000
48
  • Replace Refrigerant
  • Inspect and Clean Heater Core
  • Check Thermostat Operation
  • Perform Full System Diagnostics

Major service requires specialized tools and equipment.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the technical specifications of the HVAC system in the 2006-2011 Cadillac DTS?

The HVAC system in the 2006-2011 Cadillac DTS features a manual climate control system with dual-zone temperature control. It includes a rotary compressor, condenser, and evaporator. The system is compatible with R-134a refrigerant and has a heating and cooling capacity designed for optimal passenger comfort. The system integrates with the vehicle's electrical architecture and includes sensors for temperature, humidity, and airflow control. Compatibility with aftermarket parts requires adherence to GM specifications.

Q2

What are the maintenance requirements for the HVAC system?

Regular maintenance of the HVAC system includes replacing the cabin air filter every 15,000 miles, checking refrigerant levels annually, and inspecting hoses and connections for leaks. The system should be serviced every 30,000 miles to ensure optimal performance. Use only GM-approved refrigerant and follow proper vacuum procedures to avoid contamination. Regularly cleaning the condenser and evaporator coils can improve efficiency.

Q3

How do I install or replace a component in the HVAC system?

To replace an HVAC component, start by disconnecting the battery and recovering the refrigerant using a certified recovery machine. Remove the dashboard trim and access the HVAC module. Replace the faulty component, ensuring all electrical connections are secure. Reinstall the module, reconnect the battery, and test the system for proper function. Use a vacuum pump to evacuate the system before recharging with R-134a refrigerant. Consult a professional if unsure.

Q4

How do I troubleshoot common HVAC issues?

Common HVAC issues include low airflow, no heat or cold, or unusual noises. Check the cabin air filter, blower motor, and resistor for proper function. Inspect the refrigerant level and look for signs of leaks. Use a scan tool to check for fault codes in the climate control module. Verify that all electrical connections are secure and test the system's fuses and relays. Consult the service manual for specific diagnostic procedures.

Q5

How can I optimize the performance of my HVAC system?

To optimize HVAC performance, ensure the system is regularly maintained, including filter replacements and refrigerant checks. Use the recirculation mode to improve cooling efficiency and reduce odors. Avoid extreme temperatures and ensure proper airflow through the vents. Check the battery health to ensure the electrical system operates correctly. Use high-quality replacement parts and follow GM-recommended service intervals.

Factory Service Resources

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

Cadillac DTS HVAC Service Manual

Coming Soon

Comprehensive guide covering diagnostics, maintenance, and repair procedures for the HVAC system in the 2006-2011 Cadillac DTS.

Technical Service Bulletin - HVAC Updates

Coming Soon

Official GM technical bulletin addressing common HVAC issues and updates for improved system performance.

GM HVAC Parts Catalog

Coming Soon

Detailed catalog of approved HVAC parts and accessories for the 2006-2011 Cadillac DTS.

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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