rain water coming in top of cab

almost has to be coming in through the front or rear window trim/weather stripping. how about cab lights?

No cab lights on this truck. Maybe have to try the rear window trim next! Thank you for your answer.

Check the third brake light, had to have mine fixed.

Question. What did you find was leaking? I have a similar leak when it rains on a regular cab silverado. Water drips on the passenger side dripping from the headliner on the truck jack behind the seat.

Curious about this too as I’m discovering that water is leaking in from the headliner, passenger side rear. Only thing I can is the small 3” seal outside on that side. Anyone else discover this.

Mine is doing the same thing I replaced the rear cab brake light but still leaks

brought my 2019 Sierra 1500 Denali in yesterday because every interior window in the vehicle had excessive condensation and was sweating and leaking into front console, window wells, and ice, and would not defrost. when I brought it in, they discovered that underneath the rear seat, the entire flooring was flooded and filled to the top with dirty water that had been sitting there for weeks atleast, and there was water stains on the headliner. their solution has been to air out my car and wanted me to pick it up. Its a brand new vehicle. they now say they might be able to detail it. To what extent can I demand things to be replaced, including a new car. concerns-incidences of mold, mildew, rust, corrosion, future interior issues from leaking water into dash console, control modules? they never contacted me to report the issue or the extent of the issue, never offered me a loaner vehicle. can anyone give me solid advice on what actions I can take right away. Thank you Amy