Hockeypuck

I have the same noise coming from the driver side rear end. I have a 2019 Chevy Suburban and the noise started about a month ago. I use the vehicle for car/limo service so it runs idle in front of high end resort lobby a lot and it is not a good look for my service when people are getting ready to walk in the car and they hear this loud compressor sound. Inside the vehicle though, it is not as loud as in your video. As my high season started just recently, haven't had a chance to take it to dealership yet. But, whoever says this is normal operation, is clueless. I didn't have the noise during the first 30000 miles and now I do.