How-To: Replace bottom seat cushion
Thread Starter
Driver School Candidate
Joined: Feb 2018
Posts: 33
Likes: 26
From: IL
Rookie
Joined: Jan 2018
Posts: 55
Likes: 3
From: Dubai
Thank you so much! my seat cushion is fine, but I'm having an issue in my climate seats fan this will help me a lot to replace it myself. 
But this will be my first time.. so please bear with me
.. the seat fan motor is that black plastic part located under the air filter.. right? also.. can I reach its screws after removing the seat?
Thanks again..
But this will be my first time.. so please bear with me
.. the seat fan motor is that black plastic part located under the air filter.. right? also.. can I reach its screws after removing the seat? Thanks again..
Driver School Candidate
Joined: Mar 2018
Posts: 21
Likes: 6
From: California
I just ordered a new seat cushion for my 2001 UL only ti find out it’s been discontinued. So I ordered one for a 2004-2006 and I will keep everyone posted once I find out if there’s any differences.
Thread Starter
Driver School Candidate
Joined: Feb 2018
Posts: 33
Likes: 26
From: IL
Thank you so much! my seat cushion is fine, but I'm having an issue in my climate seats fan this will help me a lot to replace it myself.
But this will be my first time.. so please bear with me .. the seat fan motor is that black plastic part located under the air filter.. right? also.. can I reach its screws after removing the seat?
Thanks again..
But this will be my first time.. so please bear with me
.. the seat fan motor is that black plastic part located under the air filter.. right? also.. can I reach its screws after removing the seat?Thanks again..
Fan with vent to bottom cushion removed
View from bottom. Fan is near the bottom of the picture.
Lexus Champion
Joined: Oct 2007
Posts: 2,489
Likes: 107
From: AZ
The seat air filter really needs to be changed. In general, people complain about low cooling flow, but I think they probably forget about the filter. That filter is located is a very dirty environment. When the driver gets in the car a lot of dirt comes along on the shoes. Obviously a lot of that goes into the filter. It's easy to get to and change.
Thread Starter
Driver School Candidate
Joined: Feb 2018
Posts: 33
Likes: 26
From: IL
The seat air filter really needs to be changed. In general, people complain about low cooling flow, but I think they probably forget about the filter. That filter is located is a very dirty environment. When the driver gets in the car a lot of dirt comes along on the shoes. Obviously a lot of that goes into the filter. It's easy to get to and change.
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Lead Lap
Joined: Jul 2007
Posts: 4,449
Likes: 604
From: SC
Thanks, everyone.
One other thing. I've always heard that you are supposed to disconnect the battery and wait for about 5 minutes before disconnecting the seat. Something about the airbags might accidentally go off if connected to power and the wait is required because it retains some juice for a few minutes after the battery is disconnected.
Anyone know if this is true?
One other thing. I've always heard that you are supposed to disconnect the battery and wait for about 5 minutes before disconnecting the seat. Something about the airbags might accidentally go off if connected to power and the wait is required because it retains some juice for a few minutes after the battery is disconnected.
Anyone know if this is true?
Driver School Candidate
Joined: Mar 2018
Posts: 21
Likes: 6
From: California
Thanks, everyone.
One other thing. I've always heard that you are supposed to disconnect the battery and wait for about 5 minutes before disconnecting the seat. Something about the airbags might accidentally go off if connected to power and the wait is required because it retains some juice for a few minutes after the battery is disconnected.
Anyone know if this is true?
One other thing. I've always heard that you are supposed to disconnect the battery and wait for about 5 minutes before disconnecting the seat. Something about the airbags might accidentally go off if connected to power and the wait is required because it retains some juice for a few minutes after the battery is disconnected.
Anyone know if this is true?
Driver School Candidate
Joined: Oct 2018
Posts: 27
Likes: 1
From: VIC
GS450 seats: Will other gs submodel seats fit my gs450h??
Hi, I just picked up a 2007 Lexus gs450h. It has a lot of kms on it. 420k. Still drives very nicely but I want to get some seats from a lower kms Lexus. Can anyone tell.me if the black leather is the same across the GS range and do the seats for and have all the extras my seat has? Which model year GS is the newest I can go up to? I will start with the driver's seat and move from there.
Thx.
Thx.
Last edited by lynchy; Nov 2, 2018 at 12:50 AM. Reason: Typeo
Driver School Candidate
Joined: Dec 2019
Posts: 46
Likes: 6
From: Tauranga
Seat cushion uncomfortable
After the first long drive in my 05 LS it is apparent both front seat base cushions have deteriorated. This surprised me as the car has only done a genuine 45,000 kilometres. I read some here who suggest seat cushions are worn out, hence this thread regards cushion replacement. With low klms on my car I don't believe the cushions are worn from use but what I do suspect is that after 15 years, irrespective of use, the cushions deteriate from old age. Anyone agree with this theory ?
Last edited by ermat; Mar 18, 2020 at 12:27 AM.
Lexus Test Driver
Joined: Sep 2016
Posts: 8,564
Likes: 389
From: PA
After the first long drive in my 05 LS it is apparent both front seat base cushions have deteriorated. This surprised me as the car has only done a genuine 45,000 kilometres. I read some here who suggest seat cushions are worn out, hence this thread regards cushion replacement. With low klms on my car I don't believe the cushions are worn from use but what I do suspect is that after 15 years, irrespective of use, the cushions deteriate from old age. Anyone agree with this theory ?
A friend's theory, and I think I buy it, was that the reason is ventilated seats having holes in the cushion, meaning not just pores, but holes, allow it to weaken faster than normal. My mfg. 10/06 BMW (13 months newer than the LS) has sport seats that are hard as rocks. They are not ventilated. But, my front pass seat on the LS is firm. So to me, it still takes use to make it sag.