AC was working fine about 2 hours ago but suddenly stopped flowing air out of the vents on my way home just now. Defrosters work as normal but when switching to the other modes it doesn’t want to push any air out. It sounds like it but isn’t. Going to attach a video below.

Any help appreciated.

Video:
https://imgur.com/a/TZx0nTg

 

Sounds like a servo motor issue where it's not moving the doors to the proper position you want.

 

How much of a hassle is a fix such as this? Cost?


Edit: That is so weird. Went into my car to try a couple things out and now it’s working fine? I’m not complaining by any means but is there any reason why it stopped working in the first place?

 

The servo may have been momentarily stuck. There are several servos in the HVAC system that control hat and cold, mode position for where to blow the air, and the dual zone functions.
There was a special service campaign for the servos if they were causing issues.
You may want to inquire with your local dealer...you are likely eligible.

 

Okay great! I’ll go ahead and contact them. Thank you!

 

try this:

disconnect the -ve and let the car sit for 15-20 mins.

then plug the -ve back and try restarting the car and see if that helps.

 

If it happens again, I'll for sure try this first.

 

What was suggested will work, but it's only a temporary fix to the underlying issue.
By disconnecting the battery it simply resets the servo motors...so they should work fine after until the issue occurs again.
Eventually when the servo fails then replacement will be the only fix. As part of the service campaign they also reprogram the AC Amplifier (ECU).

 

Does the service campaign have a time limit? Or is it more whenever it happens, if your car is under the list that is under the "warranty", they will fix it?

 

The service campaign is fairly new...each one will have it's own expiry date.
Some are a couple years, some a decade, some never expire...it really depends.

Check this thread for more information: https://www.clublexus.com/forums/is-...vo-motors.html

 

Just called today and the service campaign (at least for my model) ends January 12th, 2022. Thankfully this all happened just in time!

 

Finally a lucky break...no pun intended. I think you meant 2022 .

 

Literally! And whoops, didn't even realize that!