Lexus Troubleshooting Questions? Ask a Lexus Expert
hello my name is ***** ***** I'd like to try and help you. did every thing work properly before the cabin filter replacement? if so then perhaps the cabin filter has been installed incorrectly. there is a air door that goes over it and it may not been installed to allow this door to fully close. when you remove the cover and can't see it then you can operate the door with the auto rec button to open it perhaps that door was jammed open manually also when replaced if you don't see the door operate with that button then it may be jamed or damaged.good luck
yes it's like a flap that covers the opening of the cabin filter you can activate it by turning on the key and operating the auto switch if it doesn't close and open then that's the problem it's either jamed or damaged
it is the auto flap that has a motor and sensor to it if it was jammed could off set the switch operation makes sense it worked before the fiter replacement. this may be difficult to really figure out other then the obvious so I'll pass it on to another tech if your not happy with my assumption. good luck.