Climate controls stopped responding? Get them working again with the Dorman - OE Solutions HVAC Control Module 599-211XD, a brand-new OE FIX unit that replaces the factory automatic-climate-control module and retains the original equipment look and feel. It installs as a direct-fit replacement across a wide range of GM SUVs and trucks with automatic air conditioning controls — including the 2004-2007 Buick Rainier, 2003-2006 Cadillac Escalade / Escalade ESV / Escalade EXT, 2003-2006 Chevrolet Silverado 1500/2500/3500, Suburban and Tahoe, 2002-2009 Chevrolet Trailblazer and GMC Envoy, 2003-2006 GMC Sierra and Yukon, and the 2003-2007 Hummer H2. See the Buyer's Guide tab for the full application and engine list.
- No scan tool required: contains proprietary software that eliminates the need for GM-specific programming such as SPS (Service Programming System); includes step-by-step instructions to configure the unit to the vehicle within minutes.
- Assembled in America: engineered, finished and rigorously tested at an advanced electronics facility in Pennsylvania to meet stringent quality and performance standards.
- Restores functionality: designed to help restore the primary operations of the original equipment control module; control functions on some models may vary.
- Seamless fit: replaces the factory module to keep the original front and rear climate control look and feel.
Frequently Asked Questions
Do I need a scan tool or GM programming to install this module?
No. It contains proprietary software that eliminates the need for GM SPS programming, and includes step-by-step instructions to configure it to your vehicle within minutes, with no scan tool required.
Will this fit my vehicle?
It's designed to fit a range of GM vehicles with automatic air conditioning controls, such as the Escalade, Silverado, Tahoe, Trailblazer, Envoy, Sierra, Yukon and Hummer H2. Check the Buyer's Guide tab for your exact year and model.
Where is this module made?
It is engineered, finished and rigorously tested at an advanced electronics facility in Pennsylvania, and meets stringent quality and performance standards.
Will it look and work like my factory unit?
It replaces the factory module and retains the original equipment look and feel. It's designed to help restore the primary operations of the original control module, though control functions on some models may vary.
What does this HVAC control module do?
It's the climate control module that lets you operate the vehicle's automatic air conditioning and heating controls, managing the front and rear climate functions on equipped models.
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