J450NP13

Getting a rear brake light out light on my dash.

I noticed a crack in the rear inside cluster assembly and there is condensation inside.

You guys think I should just replace the entire assembly?

MP4.2+6.0

Bottom line, yes. Pricy though unless found on Ebay. But from posts and personal experience, pretty clear all of ours will develop tail light maladies over time, junk yard ones already farther along themselves. As always, the newer the better. Can also try to remove, disassemble, clean up and reseal. However, if issues with the internal boards now, you get into electronic tech fix up.

J450NP13

Yep...that's what I was thinking.

I just ordered one from the dealer.