Rattle in ceiling around sunroof

[Cresty]

2017 Silverado LTZ is excellent other than an annoying rattle coming from the ceiling above the headliner.  When I hit bumps, even slight ones, it makes a very clear clicking/rattling sound.  I can make it happen just by taping the ceiling around the rear dome light.  When I'm driving and it's rattling I just have to reach back and lightly place my finger on the dome light and it stops.  Before I start pulling things apart I was wondering if anyone has had this problem and if there's a common solution.  It's under warranty but I've never had luck with the dealership finding rattles so I'd see what knowledge there is out there first.  Thanks!

[badge171]

Had the same thing in mine, drove me crazy. Turned out to be there is a plug, on the passenger side near the visor. factory is supposed to tape the plastic hard connection. Well they miss the mark. It rattles against the metal roof when hitting a bump. It was my issue anyway. I wanted to burn the truck when I first purchased. Good luck. If I remember correctly mine was the plug for the vanity mirror passenger side. Just had to pull the visor mount.

 

[Cresty]

Thanks for the feedback Badge.  Yep, it's amazing how all I can hear is that rattle right now!  I'll take a look at what you mentioned.  I think mine's from a different area but I know how these sounds can be hard to track.

[AllterrainX440]

I had a rattle that turned out to be the garage door opener. The unit doesnt sit tightly by design so I just covered it in dyna mat and it solved the problem 

[CK1000]

I had a squeak and rattle that was from an improperly seated sunroof drain tube. Dealership fixed it but was a nightmare to diagnose. 70 hrs of labor including removing the windshield and headliner finally have the issue fixed. 2018 slt premium. Plus 6.2 z71 crew cab black