GM Genuine Parts HVAC Control Modules are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These modules manage the temperature, air distribution, blower fan, and air conditioning functions in automatic climate control systems, and is a GM-recommended replacement for your vehicle's original component. The control module may encompass the control panel as well in certain applications. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).