Dorman 599-057 HVAC Control Module

Dorman 599-057 HVAC Control Module

Restore climate control operation with this Dorman HVAC Control Module for automatic temperature systems. Built as a tested replacement for the original unit, it addresses failed electronic climate control functions in select Chevrolet and GMC trucks and SUVs.

• Automatic control type for vehicles with automatic temperature control
• Black housing with 4 connectors and 56 terminals
• Bolt-on mounting style for direct replacement installation
• Female connector design with male terminals
• Programming required after installation
• Compatible with Chevrolet Silverado and GMC Sierra applications

Detailed Product Information

Dorman 599-057 is an HVAC control module for automatic climate systems. It is a replacement electronic control unit for vehicles that rely on the dash-mounted climate interface to manage temperature, airflow, and related HVAC functions. This part number is commonly searched as Dorman 599-057 HVAC control module and is used in 2012-2014 Chevrolet Cheyenne, Silverado 1500, Silverado 2500, Silverado 2500 HD, Silverado 3500 HD, and 2012-2014 GMC Sierra, Sierra 1500, Sierra 2500 HD, and Sierra 3500 HD applications, plus 2012-2013 Chevrolet Silverado 3500.

This part cross-references OE numbers 19417514 and 20921714 for the same application.

Common Problems This Part Can Address

• Climate controls that stop responding
• Automatic temperature settings that no longer adjust correctly
• HVAC display or command functions that fail intermittently
• Loss of proper blower, mode, or temperature control input through the module
• Original module failure in Chevrolet Silverado and GMC Sierra trucks

Installation Notes and Tips

Programming is required after installation. Verify connector count, terminal count, and mounting style before replacement, and confirm the vehicle uses an automatic temperature control system. This module mounts with a bolt-on design and uses 4 connectors with 56 terminals, so matching the original configuration is important for a proper repair.

Quality Assurance

This Dorman replacement HVAC control module is fully tested before release to support reliable operation after installation. It is intended as a direct replacement for the original electronic climate control module in the listed Chevrolet and GMC applications.