Leaking Cab

[Matt1977]

I have a 2018 Ram 1500 bighorn. I’ve got water leaking in the back corners of the cab, coming down the inside seam. I have replaced the 3rd brake light, I have the new cab vents, and brand new mopar back glass. It’s still leaking, I don’t know what else to do!!!!! HELP!!!!!!

 

[tron67j]

Do you have a sliding rear glass in the rear window? A few stories already hear about broken frames, do a search for that. Also, 3rd brake light seal could still be bad, did you use OEM?

 

[Daw14]

Sunroof ? Clogged drains . Cab lights ? Roof seam seals , windshield

 

[EagleChief]

I know you said you replaced the 3rd brake light, but did you replace the gasket that goes around it. That is the culprit of the leaking, typically, not the light housing itself. You might try that.