Lexus LC Blower Motor Failure

Sounds familiar. I had a similar problem with my BMW 5 series; it turned out to be the AUC sensor. Do you have any errors in iDrive or any warnings on the dash?

AUC sensor? Where is that located, and what does it do? Is that something that would completely kill the blower motor? Never heard of it!

It's the auto recirculation/air quality sensor, usually located near the HVAC intake. A faulty signal can mess with the whole system. I would check the cable and plug connection. I'm not saying it's definitely that, but that was the culprit for me. If you're not comfortable digging around, a workshop visit might be in order.

Thanks! After you mentioned the AUC sensor, I took it to the shop. They confirmed it was a defective cable to the AUC sensor. 95€ later, everything is working perfectly again!