Global Parts 1712126 HVAC Control Panel

HVAC Control Panel Overview

Global Parts 1712126 is an HVAC control panel switch assembly that sends feedback to the engine management system and supports automatic climate control operation. It is a bolt-on replacement with a black housing, female connectors, and male terminals for a direct electrical connection.

Compatible With Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and other listed applications, this part number 1712126 also cross-references Dorman - OE Solutions 599-015 and 599-017 for the same application.

Key Features

• Automatic control type for vehicles with integrated HVAC control logic
• 2 connectors with 24:12 pin layout for the specified electrical interface
• 36 terminals with pin-style connections for secure signal transfer
• Bolt-on mounting design for straightforward replacement
• No programming required after installation
• Black housing for a factory-style appearance

Detailed Description

Part number 1712126 is built for vehicles that use an HVAC control panel to communicate with the ECM and manage A/C compressor operation. In newer systems, the switch provides input to the engine management system; in earlier systems, it can directly command compressor shutdown to help prevent compressor damage. This makes 1712126 a practical replacement for Chevrolet Trailblazer and GMC Envoy applications, along with other listed GM trucks and SUVs that use the same control-head configuration.

The fitment list includes multiple Chevrolet, GMC, Cadillac, Buick, Hummer, and Oldsmobile applications, including models with rear control head and rear defogger notes. Verify the exact control-head configuration and notes before ordering, especially on 2003-2006 Cadillac Escalade, Chevrolet Silverado, Tahoe, Suburban, and GMC Yukon applications.

What It Is Used For

• Restoring HVAC control input when the original panel no longer communicates correctly
• Replacing a worn or failed climate control switch assembly
• Correcting compressor command issues tied to the control head
• Addressing electrical connection problems at the HVAC interface
• Matching factory-style automatic climate control operation

Installation Notes and Tips

Fits 2002-2009 Chevrolet Trailblazer, N/A; 2002-2009 GMC Envoy, N/A; 2004-2007 Buick Rainier, N/A; 2007 Chevrolet Silverado 1500 Classic, N/A; 2005-2007 Chevrolet Silverado 3500, N/A; 2007 Chevrolet Silverado 3500 Classic, N/A; 2007 GMC Sierra 1500 Classic, N/A; 2007 GMC Sierra 3500 Classic, N/A; 2003-2007 Hummer H2, N/A; 2005-2006 Cadillac Escalade, N/A; 2005-2006 Cadillac Escalade ESV, N/A; 2005-2006 Cadillac Escalade EXT, N/A; 2005-2006 Chevrolet Avalanche 1500, N/A; 2005-2006 Chevrolet Avalanche 2500, N/A; 2003 Chevrolet Avalanche 2500, N/A; 2005-2006 Chevrolet Silverado 1500, N/A; 2005-2006 Chevrolet Silverado 2500, N/A; 2006 Chevrolet Suburban 1500, N/A; 2003 Chevrolet Suburban 1500, N/A; 2006 Chevrolet Suburban 2500, N/A; 2003 Chevrolet Suburban 2500, N/A; 2005-2006 Chevrolet Tahoe, N/A; 2005-2006 GMC Sierra 1500, N/A; 2005-2006 GMC Sierra 3500, N/A; 2005-2006 GMC Yukon, N/A; 2005-2006 GMC Yukon XL 1500, N/A; 2003-2006 GMC Yukon XL 2500, N/A; 2005 Cadillac Escalade, N/A; 2005 Chevrolet Suburban 1500, N/A; 2005 Chevrolet Suburban 2500, N/A; 2003-2004 Cadillac Escalade, N/A; 2004 Cadillac Escalade ESV, N/A; 2004 Cadillac Escalade EXT, N/A; 2003-2004 Chevrolet Avalanche 1500, N/A; 2004 Chevrolet Avalanche 2500, N/A; 2003-2004 Chevrolet Silverado 1500, N/A; 2003-2004 Chevrolet Silverado 2500, N/A; 2003-2004 Chevrolet Silverado 2500 HD, N/A; 2003-2004 Chevrolet Silverado 3500, N/A; 2004 Chevrolet Suburban 1500, N/A; 2004 Chevrolet Suburban 2500, N/A; 2003-2004 Chevrolet Tahoe, N/A; 2003-2004 GMC Sierra 1500, N/A; 2003-2004 GMC Sierra 2500, N/A; 2003-2004 GMC Sierra 2500 HD, N/A; 2003-2004 GMC Sierra 3500, N/A; 2003-2004 GMC Yukon, N/A; 2003-2004 GMC Yukon XL 1500, N/A; 2002-2004 Oldsmobile Bravada, N/A; 2003 Chevrolet Silverado 1500 HD, N/A; 2003 GMC Sierra 1500 HD, N/A. Confirm the control head notes for rear defog and digital display applications before installation.

Quality Assurance

Global Parts supplies this HVAC control panel as an OE-style electrical replacement for listed applications. Part number 1712126 is engineered for direct signal communication with the vehicle control system and does not require programming.