New to me 2017 suburban has random high pitched beep after starting, doesn’t happen every time, usually after the car has been parked a few hours. No warning lights or info. Not the seatbelt chime.

 

I too have a BEEPING SOUND!!!!!
It BEEPS at all different times. First I read where Sirius was sendinding a beep to alert the driver a favorite was playing and allow the listener to store that song somewhere, I called Sirius to ask. The two different people I spoke to, 1 said they had heard about it and 1 said they hadn't. I ask them to stop it.
The beeping still exist. It's driving me crazy.
HAS ANYONE ELSE HEARD OF THIS.
it's not mileage driven , not steady rhythm, I had a alert in the dic I needed trailer brake service. My dealer died huh when I called them.