Buick LaCrosse 2017-2019 HVAC Specifications
Buick LaCrosse 2017-2019

Buick LaCrosse 2017-2019 HVAC Specifications

Explore the detailed HVAC specifications for the 2017-2019 Buick LaCrosse. This guide covers system components, performance metrics, maintenance tips, and repair insights to help you optimize your vehicle's climate control system.

Updated

Overview Specifications

This document provides detailed HVAC specifications for the 2017-2019 Buick LaCrosse. It includes information on system components, controls, and performance metrics. Use this guide to understand the HVAC system's features, troubleshoot issues, or compare specifications. The document is organized into sections for easy navigation, and a quick reference table is included for key specifications.

How to Use

Use the search function to find specific terms or components within the document. Enter keywords like 'climate control' or 'airflow' to quickly locate relevant information.

Navigate through the document using the section titles and subsections. Each section focuses on a specific aspect of the HVAC system, making it easy to find the information you need.

Key Specifications

Temperature Range

60°F to 90°F

Airflow Rate

200 CFM

Refrigerant Type

R-134a

Filter Type

HEPA

Fan Speeds

6 levels

Available Specifications

Climate Control System

This section covers the climate control features of the 2017-2019 Buick LaCrosse, including dual-zone automatic temperature control, air distribution modes, and system controls.

Dual-Zone Automatic Climate Control
  • Separate temperature settings for driver and front passenger
  • Automatic adjustment based on cabin temperature
  • Includes heating and cooling functions
  • Temperature range from 60°F to 90°F
Air Distribution Modes
  • Multiple modes: face, floor, and defrost
  • Adjustable airflow intensity
  • Auto mode for optimized air distribution
  • Defrost mode for quick windshield clearing

Heating and Cooling Performance

This section details the heating and cooling capabilities of the HVAC system, including airflow rates, temperature control precision, and energy efficiency.

Heating Performance
  • Rapid cabin warm-up in cold conditions
  • Heated seats available for additional comfort
  • Engine coolant provides heat source
  • Adjustable fan speed for heating
Cooling Performance
  • Efficient cooling in hot weather
  • Air conditioning compressor with variable displacement
  • Rear vents for enhanced cooling
  • Refrigerant type: R-134a

Air Quality and Filtration

This section focuses on the air quality features of the HVAC system, including cabin air filtration, recirculation modes, and humidity control.

Cabin Air Filtration
  • High-efficiency particulate air (HEPA) filter
  • Removes dust, pollen, and allergens
  • Filter replacement recommended annually
  • Improved air quality for sensitive passengers
Recirculation and Humidity Control
  • Recirculation mode for reduced external odors
  • Automatic humidity sensing and control
  • Prevents fogging on windows
  • Enhances comfort in varying weather conditions

Component Specifications

Overview

Type
Automatic Climate Control
Configuration
Dual-Zone
Platform
GM Epsilon II
Material
High-Strength Steel and Plastic
Location
Front Dashboard

Dimensions

Unit Width
24 inches (61 cm)
Unit Depth
12 inches (30.5 cm)
Unit Height
8 inches (20.3 cm)
Duct Diameter
3 inches (7.6 cm)
Compressor Size
5.5 inches (14 cm)
Evaporator Size
10 inches (25.4 cm)
Condenser Size
15 inches (38.1 cm)

Materials

Compressor
Aluminum Alloy
Evaporator
Copper and Aluminum
Condenser
Aluminum
Ducting
High-Density Plastic
Control Panel
ABS Plastic

Features

Climate Control
  • Dual-Zone Temperature Control
  • Automatic Air Recirculation
  • Defrost Mode
  • Rear Ventilation
Air Quality
  • Cabin Air Filter
  • Pollution Sensor
  • Ionizer
  • Dehumidifier
Comfort
  • Heated Seats
  • Cooled Seats
  • Steering Wheel Heater
  • Rear Seat Climate Control
Display
  • Touchscreen Controls
  • Digital Temperature Readout
  • Auto Mode Indicator
  • Fan Speed Display
Efficiency
  • Energy Saver Mode
  • Eco-Friendly Refrigerant
  • Low Power Consumption
  • Solar Load Sensor

Safety Features

Temperature Control
  • Overheat Protection
  • Freeze Protection
Air Flow
  • Air Flow Sensor
  • Obstruction Detection
System integrity
  • Leak Detection
  • Pressure Monitoring

Comfort Features

Temperature Regulation
  • Precise Temperature Control
  • Quick Cooling
  • Quick Heating
Air Distribution
  • Multi-Directional Vents
  • Adjustable Air Flow
  • Rear Vents
Noise Reduction
  • Quiet Operation
  • Vibration Dampening
  • Sound Insulation
Convenience
  • Remote Start Climate Control
  • Auto Defrost
  • Auto Dehumidify

Accessories

Filters
  • Cabin Air Filter
  • HEPA Filter
  • Charcoal Filter
Controls
  • Touchscreen Controller
  • Remote Control
  • Voice Command
Upgrades
  • Enhanced Ionizer
  • Solar Reflective Glass
  • Additional Vents

Maintenance

Service interval
12 months or 12,000 miles
Service Items
  • Replace Cabin Air Filter
  • Inspect Refrigerant Levels
  • Check Compressor Operation
  • Clean Condenser
  • Test Blower Motor
  • Inspect Ducting for Leaks
Maintenance Notes
Regular maintenance ensures optimal performance and longevity of the HVAC system.

Warranty

Basic
3 years or 36,000 miles, bumper-to-bumper coverage
Powertrain
5 years or 60,000 miles, includes compressor and condenser
Corrosion
6 years or 100,000 miles, rust-through coverage
Emissions
8 years or 80,000 miles, covers emissions-related components
Warranty Terms
Warranty coverage includes parts and labor for defects in materials or workmanship.

Production Details

Manufacturer
General Motors
Manufacturing Process
  • Automated Assembly
  • Precision Machining
  • Quality Testing
Quality Control
inspection: 100% Component Testing
Certification: ISO 9001 Certified
Testing: Environmental Stress Testing
Sustainability Practices
  • Recyclable Materials
  • Energy-Efficient Manufacturing
  • Low-Emission Processes
Production Metrics
Units Per Day: 500
Defect Rate: Less than 0.1%
Energy Usage: 15 kWh per unit

Service Information for HVAC Service

Maintenance and service requirements specific to the HVAC system

12,000
12
  • Inspect refrigerant levels
  • Check compressor operation
  • Test blower motor
  • Clean condenser
  • Inspect ducting for leaks
  • Replace cabin air filter

Regular maintenance ensures optimal performance and longevity of the HVAC system.

24,000
24
  • Check for refrigerant leaks
  • Inspect evaporator coils
  • Test temperature sensors
  • Check air flow sensors
  • Inspect control panel functionality

Special tools may be required for refrigerant leak detection.

60,000
60
  • Replace refrigerant
  • Inspect and clean all ducts
  • Check and replace blower motor if necessary
  • Inspect and replace compressor if needed
  • Perform system performance test

Major service may require replacement of key components to maintain system efficiency.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the technical specifications of the HVAC system in the 2017-2019 Buick LaCrosse?

The 2017-2019 Buick LaCrosse features a dual-zone automatic climate control system with a variable displacement compressor. It is compatible with R-1234yf refrigerant and includes features like automatic temperature control, humidity sensors, and air quality sensors. The system is designed to work seamlessly with the vehicle's electrical architecture and is integrated with the infotainment system for user control. The HVAC system is also equipped with a recirculation mode and rear passenger vents for optimal comfort.

Q2

What are the recommended maintenance requirements for the HVAC system?

Regular maintenance for the HVAC system includes replacing the cabin air filter every 15,000 to 30,000 miles, checking the refrigerant levels annually, and inspecting the system for leaks or blockages. It is also recommended to have the system serviced every 5 years or as dictated by the vehicle's maintenance schedule. Additionally, ensuring proper airflow by keeping vents clean and unobstructed is crucial for optimal performance.

Q3

How do I replace the cabin air filter in my 2017-2019 Buick LaCrosse?

To replace the cabin air filter, open the glove box and release the stops by sliding them towards the center. Remove the glove box door to access the filter housing. Open the housing, pull out the old filter, and insert the new one, ensuring the airflow arrow points towards the vehicle's interior. Reassemble the housing and glove box. This process should take about 10-15 minutes and requires no tools.

Q4

What are common issues with the HVAC system and how can I troubleshoot them?

Common issues include reduced airflow, which could indicate a blockage or bad blower motor, or improper temperature control, which might be due to a faulty temperature sensor or actuator. Check the fuses and relays first, then inspect for refrigerant leaks or blockages in the vents. If issues persist, consult a professional technician for further diagnosis.

Q5

How can I optimize the performance of my HVAC system?

To optimize performance, ensure the system is serviced regularly, including filter replacements and refrigerant checks. Use the recirculation mode to improve cooling efficiency and reduce odors. Keep the vehicle's interior clean to prevent dust buildup in the vents. Additionally, avoid extreme temperature settings to reduce strain on the system and maintain consistent cabin comfort.

Factory Service Resources

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

2017-2019 Buick LaCrosse Service Manual

Coming Soon

Comprehensive service manual covering HVAC system diagnostics, maintenance, and repair procedures.

Technical Bulletin: HVAC System Update

Coming Soon

Bulletin detailing updates and improvements for the HVAC system in 2017-2019 Buick LaCrosse models.

Genuine GM Parts Catalog: HVAC Components

Coming Soon

Catalog of genuine GM parts for the HVAC system, including filters, compressors, and actuators.

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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