I have a loud clicking noise coming from under the passenger dash. Reading other threads it may be the recirculating door. But they are saying there is an access door on that model. Any idea how to get to it in a 2011 is 250?

 

Agreed. Someone probably tried to replace the cabin filter without setting the mode to recirculate, forced things, and broke the servo or linkage that controls the door. Here is the DIY thread for fixing it: https://www.clublexus.com/forums/is-...g-to-circ.html