I let my 2015 IS 250 sit in the driveway for about a month. Upon starting the car for the first time the ac will only flow from the windshield vent. Heat works same problem. It is cooling and heating. M It is not pulling any codes on the code reader. I checked the air filter and cabin air filter and no obvious blockages no obvious blockage at the outside windshield vent. Anyone have this issue?

 

Do you have access to techstream ?

 

No but I can try to get access if you think it would be helpful

 

yes get your hands on techstream and try resetting your servo motors. I fixed a similar issue for my friend once. When you reset the servo motor do the process several times. It didnt work for my friend on the first try, so on the second attempt we went through the process 10 times. I will look for the youtube video link i used.

 

found it.
So at 19:05 he will show you the process. I recommend you also watch the first couple of minutes. Remember follow that process like 10 times. Because on the first try it did nothing.
Let me Know if you need help obtaining a free copy of techstream.