Leak above sliding glass window

Hello all I am new to this forum and I had some questions and to see if anybody else has encountered this issue.

I own a 2016 TSS Double Cab Tundra that seems to have a leak right above the sliding glass window in the back seat. Have any of you guys or gals encountered this issue and if so how did you go about fixing it?

I have looked up online and YouTube and haven’t found anything for this model so any and all input would be greatly

 

Welcome from LA (Lower Alabama)! Frankly, this is the first time I've heard of this on later model Tundras.

 

Yes it is very strange! I messed up posting the pictures, sorry my first time on this platform. It seems to me it may be coming from the brake light housing maybe? Only thing I can think of, but water slowly drips down right above the window onto the seat.

 

It's most likely your third brake light. There's a seal between the lens and the housing you should check (thats the easy one). If its not that its probably between the housing and the body (have to pull down the head liner if I remember right).

 

I seem to recall someone else having a leak that was traced back to the 3rd brake light.

 

third brake light gasket would be a quick easy check, 4 screw removal and see if the gasket is mated correctly, after that check the seal between the housing and the cab.

 

I know this is a year later, but did you ever resolve this? I have a 2016 with the exact same problem and a stain on my back seat identical to yours, I have replaced the 3rd brake light with new gasket. Then I did a hose test right above where the leak is but not on the light. Still got the leak. So I siliconed above that black strip above the window...STILL LEAKING. This is driving me crazy and I would love to know if yours was solved

 

Happened to me too. Bought 3 different lights until it dawned on me to install a light assembly that didn't use the 2 weak ass mounting points on OEM housings. Drilled 4 holes and never looked back.

 

No leaks on my ‘16 double cab but I’ve heard the 3rd brake light seal can cause that.