For those that have had the 3rd brake light leak

How did you confirm it was truly that? My cabin has been leaking with my rear seats being wet and behind the seat having some wetness after hard rains so it seems like it would be that. However, I felt the headliner and that is not wet so if that’s not wet would that indicate it’s not the third brake light? I’m just trying to get an idea of best ways to confirm it truly is that before I deal with the stealership.

 

I had a 2017 Sport with the rear top side of the seats getting wet after each rain. I took it in for repair a year and a half ago for repair. The liner wasn’t wet either. If you look for the tsb, there is one. The bolts on the third light were over torqued at the factory and would break causing the water leak. I had found the TSB back then and had to tell them. Sorry I don’t have that TSB readily at hand but it’s there. Being in Canada, the shop Forman asked if it was a Canadian TSB, I said NOPE, doesn’t matter, truck was made in the US of A.