Dim/Intermittent Security light issue

[93M6Formula]

Hey all, have an 04 Z71 Tahoe, and lately i've been noticing the security light being on but dimly lit, sometimes it flickers, other times it goes away entirely with no rhyme or reason. It's not causing issues that I can tell but i'd like to fix it. Seems I might have a small battery draw though, randomly if I let it sit a day or two, the battery will be absolutely dead. If I drive it daily, no problems.
Any ideas? Thinking a ground issue somewhere.

 

[Doubeleive]

if it is not causing a no start problem then it's probably just a bad instrument cluster board, bad cluster's have been known to drain the battery.