We have a 2016 Lexus RCF 300 and every time it gets wet the windows will streak for days, just like if it was out of the car wash! Made note of it upon taking delivery of the car. Now that it is in for its 5k service, we are trying to have it corrected but we are being told by the dealer Wilkie Lexus, that this is normal and they are refusing to fix it...
Is anyone else having this issue?

 

Yes, my RC's doors seem to retain water for a long time, at least longer than my other cars. I can't roll my windows down after a car wash for at least 2 days without windows getting wet again, and this is on hot sunny days.

 

Yep, it's a known issue. I still just roll em up and down freely, and use a glass cleaning wipe after the water has dried in a day or two. Not a big deal

 

my RCF does, it appears to be the sound deadening material on the inside of the door panel that stays wet. as you can see from this image, it makes up a large portion of the inside of the panel, and it is a carpet padding like material.

my detailer will typically roll the window down and use a the air compressor to blow down between the door and panel to try and blow off as much excess water as he can, he does it with the door open and you can see it drip like a leaky faucet for several minutes. but it does help stop the streaking.

I've considered removing the panels and heat shrinking plastic wrap around the material to prevent it from absorbing water, more because I am concerned with mold build up over time than the annoying streaking issue.

 

[QUOTE=mjeds;9994436]my RCF does, it appears to be the sound deadening material on the inside of the door panel that stays wet. as you can see from this image, it makes up a large portion of the inside of the panel, and it is a carpet padding like material.

my detailer will typically roll the window down and use a the air compressor to blow down between the door and panel to try and blow off as much excess water as he can, he does it with the door open and you can see it drip like a leaky faucet for several minutes. but it does help stop the streaking.

I've considered removing the panels and heat shrinking plastic wrap around the material to prevent it from absorbing water, more because I am concerned with mold build up over time than the annoying streaking issue.

[/QUOT
It is not the sound deadening material that captures the moisture, that sound deadening material does not even touch the glass! It is the window sweeps that retain the moisture. There is a sweep on each side of the glass it acts like a sandwich with the glass in between. One of the sweeps is shown at the top edge of your picture on the door card panel and the other is attached to the door frame. For whatever reason they wick moisture more than most cars and it takes a long time to dry out.

 

Yea if that sound deadening gets wet it would smell really bad.

 

my infiniti g37s coupe had this issue too. it seems a tad bit worse in the RC though

 

I had this issue with my RC as well, unless it was a really hot day the next day, then I would be able to roll down the window

 

Ugh, I hate this aspect about this car. Every car wash means leaving the windows up for nearly a week. I've noticed it happens on many other lexus models as well.