Cabin leak 2018 Tradesman

[JHammond]

I am new to this forum.Hello all. I was wondering if anyone is having an issue with the third tail light leaking inside of the cab?

 

[marty7]

I too have the cab tail light leaking in a 1998 1500 4x4. It's been caulked professionally but that only lasted 5 years.
What have you tried?

 

[CaptQ]

I had the leak a few days after buying the truck new. Apparently a common problem. Dealer took care of it at no cost.