Here's an update in case it happens to anyone else...when I had it in, they did a program update that had to do with the transfer case and it's been fine ever since.
No, no light if engaged. Chirps like I'm in a sharp turn in 4L.
Just picked it up from the dealer, Service manager says "yeah, mine does that too sometimes". Doesn't sound right or normal to me.
Has anyone had the diff on a 2017 locking with no slip? At times (randomly) the locker engages when it isn't needed...no slip from the drive wheel. Took it to the dealer and they say it's normal. Left side chirps when turning. This happens in 2H.
2017 Silverado LT 4x4