motor778

I got LS460 a couple of months ago.
I am constantly finding driver seat to be quite uncomfortable (hard) in right rear area. It appears that right rear side is harder than left and it applies a lot of pressure on a ball joint. Changing seat position does not solve the problem. Passenger seat appears ok.
Dealership was not helpful with this issue.

Did anyone else noticed anything like this?

I did not feel this during a test drive.

MPLexus301

iTrader: (3)

I am guessing that you are rather tall and have the seat cushion extended forward quite far. Doing this exposes the wiring harness under the back portion of the cushion which can make it quite uncomfortable. There is a TSIB that adds padding and fixes the issue completely, so ask your dealer to check for it and if they tell you no then ask to speak to their field technical specialist about it.

dsc07

Motor, I've had a lot of experience with this exact problem on the LS430. The problem is significantly less on the 460, but I feel it on mine as well. What you are feeling is the A/C housing for the climate controlled seats - at least that is what Lexus told me after 4 seat cushion modifications on my 430. I never did get to see the seat when it was taken apart to verify it, but that's exactly what it feels like to me. They never did fix the problem satisfactorily, and so my solution was to buy a 460. The thing is, you don't really notice the problem when the car is new. It only starts to show itself after about 3 months when the foam compresses.

Although I am quite tall, I notice the problem regardless of the seat position, as MPL suggests. I hope he is correct, and there is a TSB on this. MPL, do you have a number on that TSB?

thanks

MPLexus301

iTrader: (3)

Don't have the TSIB number, sorry.

motor778

thanks all for your replies.

I actually did a bit more research and it appears that there is some kind of cable sticking from beneath the leather at the back of the seat. I usually don't extend it that far to notice before. AND seat is stiff on the rear end. it appears that padding is very thin and there is something hard and flat just beneath it. Probably the AC unit mentioned in previous post. Dealership offered to take the seat apart to see what is wrong with it.

sjpobox

yes do the padding, we have done several and had no complaints. im not sure of the tsib number either. We used 3-4 inch thick foam cushioning kind of like an egg crate people use for bedding.

thrang

When you say "we've done many", are you saying you're a lexus dealer? I'm speaking with my service engineer now, as I have the same complaint - he's indicated he read this thread and looked through every 460 tsib twice and cannot find any reference to this fix . Any help here would be appreciated

Thanks

rominl

iTrader: (4)

yup, shawn works at a lexus dealership and he's been super helpful to this forum!

thrang

So, shawn, if you're out there - any chance you can help locate the tisb number so can pass along to my technician?

Thanks

sjpobox

hello, i will try tomorrow, I try to cruise all the forums when I have time. thanks for pming me I would have never looked here.

sjpobox

Thanks for the compliment, I love the brand and why not help people along the ride.

sjpobox

Ok there should be a tsb coming out about this, not sure when but at least they are working on a fix for it.

rominl

iTrader: (4)

thank you so much for keeping us posted, shawn it's really good to know that we have someone on the "technical" side here to answer questions, especially on a car this new!

thrang

Thanks for this - just curious though - earlier you indicated you had performed several of this seat padding repairs - this was done without a TSB, but covered by Lexus? If so, is it plausible to assume the "unofficial fix" you did earlier is becoming the official TSB?

Thanks

rominl

iTrader: (4)

could be. i don't know if it will become the "official fix", but as far as i know, if there is a problem that's not in any TSIB, but dealership found a fix, lexus will pay for the labor and parts (they should)