FIXONICBefore you begin
This guide shows how to replace the AC recirculation blend door on a 1999–2004 Jeep Grand Cherokee through the glove box, avoiding having to remove the dashboard. The recirculation blend door controls whether your vehicle uses outside air or recirculates cabin air. A common failure point is the hinge of the blend door. When it fails, you may notice the system not switching recirculation modes when the button is pressed, or repeated clicking or grinding noises as the system attempts to cycle the door. This method does require cutting non-structural plastic grates that cover the access point. Before starting, be prepared to work in a tight space and use caution when cutting plastic.
