Where is the blend door on a 2000 jeep Cherokee?

The blend door in a 2000 Jeep Cherokee is located within the HVAC (heating, ventilation, and air conditioning) housing, which is situated behind the dashboard on the passenger side. Accessing it typically requires removing the dashboard and possibly the HVAC unit itself. The blend door controls the mix of hot and cold air entering the cabin, and it can sometimes malfunction, affecting temperature control.