*Thanks everyone! It was a simple fix as it was the cabin filter. Runs just like new! Thanks everyone!
My 2015 RX 350 with 192K miles has cold air blowing but it seems the air flow is very weak.

any ideas before I take it to the stealership?

 

Things that you can do are:

Check cabin air filter. If you follow recommended service the filter is replaced based on schedule. But if you are off the schedule or operate the vehicle in an adverse environment, then it needs to be done more frequently.

Take the HVAC out of Auto and put it to paces by changing mode [direction of air flow] and confirm that the air is being directed as selected/.

Now test the blower by changing the fan speed.

Lastly switch back to Auto and change the temp from one extreme to the other.

Record any abnormal behavior


Salim
PS: Lexus HVAC is set it and forget it. Leave it in Auto and just dial the temp. It will do everything for you.

 

You can easily replace the cabin air filter yourself following the instructions in this video: