Clicking, seemingly directly behind the screen?

[ero2]

Hey all!  Just hit 41k on my Sierra and still love it (other than the stereo, lol), but have lately noticed this weird clicking that seems to happen behind the LCD screen when driving, but also under the steering wheel/in the dash even after I shut it off.  I've never experienced it before, but the vehicle seems to operate normally, AC is cold and blowing, etc.  Any ideas, or has anyone else had this?

 

Thank you!

[Phantom 4D]

50 minutes ago, ero2 said:

Hey all!  Just hit 41k on my Sierra and still love it (other than the stereo, lol), but have lately noticed this weird clicking that seems to happen behind the LCD screen when driving, but also under the steering wheel/in the dash even after I shut it off.  I've never experienced it before, but the vehicle seems to operate normally, AC is cold and blowing, etc.  Any ideas, or has anyone else had this?

 

Thank you!

I have a 2019 Sierra. About 5 minutes after I shut it down I get noise from under the dash and around the Infotainment screen. I believe it's the shutters closing. At least that's what it sounds like. 

[1454]

Pull your incabin filter out and inspect it. It might have a leaf or something hitting the blower fan. I have had this happen before. Can't say for sure this is it, but it could be.