Ventilated seat motors creating hot spots + potential solution
Intermediate
Joined: May 2010
Posts: 377
Likes: 97
From: GA
People are too picky about a "nice to have" feature on an entry level premium sedan. The seat is designed to move existing air within the cabin and through the seats. It's not really going to do much beyond that. Also the efficacy of the system not only depends on the cabin temp, but the exact shape/size/pressure/areas of pressure the body that sits on it. Obviously depending on where your body mass rests on the seat, and what you're wearing, your results will vary as to where air is able to flow through or around your clothes, giving (or not giving) the perception of "cool." Just depends how you're shaped and what parts of the seats you're body is pressed on and how hard it's pressed.
In short, there is way too many variables involved to ensure every single driver is cooled the exact same way. It's just one of those "ahh this is neat" features and not something to completely rely on keeping you perfectly cool in every situation for every driver.
My ventilated seats on my 200t were grand. Didn't really notice any hot spots. though my body may not sit on the seat the exact same way everyone elses does.
Vinyl is going to be hot in general. Having holes helps. Having holes that air moves through helps. But still--it's vinyl. You are sacrificing ultimate comfort to *not* have cloth seats.
In short, there is way too many variables involved to ensure every single driver is cooled the exact same way. It's just one of those "ahh this is neat" features and not something to completely rely on keeping you perfectly cool in every situation for every driver.
My ventilated seats on my 200t were grand. Didn't really notice any hot spots. though my body may not sit on the seat the exact same way everyone elses does.
Vinyl is going to be hot in general. Having holes helps. Having holes that air moves through helps. But still--it's vinyl. You are sacrificing ultimate comfort to *not* have cloth seats.
I modeled a 3d printed duct for those of you that would like something somewhat stock looking, over an iPhone box.
https://www.clublexus.com/forums/rc-...ntilation.html
https://www.clublexus.com/forums/rc-...ntilation.html
Intermediate
Joined: Apr 2020
Posts: 261
Likes: 73
From: NY
Amazing.. I came on here as I was feeling the same heat in our nx 200t. My wife thought I was imagining it. She finally agreed. The iPhone box trick actually works.. but it shouldn’t come to that. I’m taking it in to Lexus and telling them to come up with a cure. Doubt if it will happen. Thanks for the sanity check folks.
Intermediate
Joined: Aug 2017
Posts: 345
Likes: 95
From: Ontario, Canada
This helps more than I could have ever imagined! I keep my seat at the lowest position so the box gets wedged between the floor and seat and stays in place. If you tend to keep your seat higher then you may need to tie a rubber band around it to keep it in place.
My seat is so cool now that I almost want to say it’s icy!
My seat is so cool now that I almost want to say it’s icy!
By the way, how does your driver seat look like? Is it in the same condition as your passenger seat? I'm looking to get my dealer to replace the seat cover on my own '19 IS350 because the Nuluxe wrinkled at the shoulder area (left shoulder). Service advisor(s) and techs also agree that it isn't normal, and I was also told that the F-Sport seats have the Nuluxe bonded to the foam backing. They come off in one piece with only a handful of clips on the back of the seat, so it's making me more amenable to the idea of replacement as the procedure doesn't involve the tech cutting and replacing dozens of hog rings.
Last edited by GNS; Oct 15, 2021 at 07:00 AM.
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arcteryx
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