2025 Rear window water drainage

I love my new Tundra Limited, but I’m having issues with water draining into the rear seat area from the rear window. The window seals great when fully closed, but if the window is even slightly open water will just wick and splash into the rear seat area even when not moving AND pointed uphill! It’s much worse if moving so that the rear window cannot be left open to any extent when there is any amount of rain (even mist).

Older tundra (sliding window) never had this kind of problem. So I would expect this is a design oversight in how the drainage was meant to work. So, does anyone know of any aftermarket products which might address this problem? Even a basic water channel at the top edge of the window would help.

thanks,

xl600@teamspode.org

 

is there a reason you don't want to close the back window? I don't leave any of my windows open.

 

Sometimes people forget. Having a bunch of water pile up in the cab because of that seems like a pretty severe punishment for a rear window that wasn’t designed for even basic water drainage when standing still. It’s also nice to be able to crack the window to get some airflow when it’s raining lightly and driving slowly, which was easily done with my 2003 tundra. The new truck, that’s currently impossible.

 

Need one of these for the 2022+ Tundra. Didn't see one listed in a quick search.

https://www.summitracing.com/parts/...d06uaT7ppeAiVhMRM0dnqjY-Q7Y9u5KRoCk68QAvD_BwE

 

Oh yeah, that’s exactly what I was thinking. I’ll keep an eye out for a 3rd gen version of that.

thanks

 

Growing up in a station wagon a million years ago, my mother learned really fast how driving around with an open rear window was a bad idea. Exhaust fumes, rain, dust, and everything else flowing by on the road would enter the car. The aerodynamics say it has to happen. (Have you noticed how cars with steep rear windows have wipers and those with low slope don't? There it is.) I don't know why Toyota did this, but it's been a lesson learned the hard way from others. Mechanically it's simpler than other designs, which is the only reason I can think of. This is one of those features I deliberately forget about for the reasons above.

 

Well, a pickup truck doesn’t suffer as much as a station wagon to be sure from an open rear window. But you are right about the basic physics when the car is moving. I’m thinking a spoiler of some sort would probably help for both the non-moving and moving conditions, but I’ve yet to find one for this truck. There are others for older tundras (EGR for example). I guess it’s something I’ll have to live with for a few years until an aftermarket product comes around or I just unconsciously learn to live with it.

 

I had a 2014 and if the window was not closed, period, you got wet. Yes I forgot to fully close it a time or two and and water got in, gonna happen. At least now my truck will tell me if I left it open. Very easy to forget if you have the digital mirror as you are not looking through the rear window.