Was surprised mine has it, even blind spot monitoring is there.

 

Personally, I Can confirm that 2022’s do not have Memory Seats. 2021 was the last year - until introduction of the current Final Edition Models. More significantly however (MY) 2022 RCF’s are the last to feature TVD as an option. Not available on any RCF model since - including the Final Edition models. Ohh yeah I could throw in discontinuance of the Engine Strut brace after 2022 but I digress.

 

The final edition has a specially tuned and hand-assembled Torsen LSD with backlash adjustment so however small the update, it does have some special development. The 2UR is also hand assembled for the final edition.

The 4 point shock tower brace was discontinued because as I read in the 2023 Japanese press release, the 2023 RCF had updated underbody chassis braces, which possibly made it even more rigid making the shock tower braces redundant.

 

Yep Rolla, I saw that as well. But one does wonder how much of this is marketing? I should note, they also removed the rear center console/cupholders and arm rest. Don’t really understand the de-contenting, it’s obviously a moot point a this stage however.

 

A few observations to note...

Auto-Tilt Mirrors in Reverse with Memory was also a part of this since 2015-2019 and then 2020-2021 face lift models. Lexus Driver Memory also applies to side mirrors along with steering wheel too and the mirrors with memory function for RCF are expensive than the ones without that functionality. Also the RCF Auto-Close mirrors from EU Market (LHD) can be fitted to USDM (LHD), but that was done only by @nigel821 afaik, however his RCF is 2021 which had both of these functions, so the LHD EU import was plug and play fix, no need for Techstream.

Surprisingly for RC F 2025 Final Edition, USDM, Lexus decided to include the memory seat setting but then again the Final Edition does not have the Auto-Tilt down in reverse.

I was able to find the part numbers for the memory switch modules (Note - you can check the part notes at Longo Lexus, Lexus of Pembroke Pines parts stores too as basic websites for most dealerships do not list part notes like memory, colors, etc)

Handle, Inside - Lexus (69280-24010-C0) --> Left side without Memory pkg as you can see in the site link
Handle, Inside - Lexus (69280-24040-C0) --> Left side that says All, site link
Handle, Inside - Lexus (69280-24020-C0) --> This is the right one to get, it clearly says Memory package, site link
Memory Switch - Lexus (84927-24050) --> Switch module that controls the memory functionality, this module has a port for input, that's how it will control Lexus Memory, now that wiring is there or not for models 2022-2024, we need to open the door panel and see if there's a wire.

I will not do the Auto-Close mirrors OEM+ mod now because we have to import the whole module from EU zone and that should be LHD only plus it will be very expensive for each mirror housing as they come painted and will be plug and play for most part (Auto-Close won't work for some reason, manual button only works maybe it has to do with Techstream ? not sure), I presume if 2021 RCF got the LHD motorized mirrors fit without any wiring additions, these set of mods also should be same for the 2022-2024 models, but unfortunately I cannot be 100% sure.

By the way, there's Lexus Birthday bash sale going on, 20% off on all parts and over $100 free shipping for most dealerships, its only until Sep 23, will end by midnight.

 

@nigel821 did you happen to see any extra wires floating around with your window switch upgrades?

 

I wonder if this is market specific. I have a 2022 Canadian model that does have memory seats.

 

Yes, Canadian spec RCFs are closer to JDM/Euro spec RCFs. For example, at least the earlier model RCF track editions came standard with Mark Levinson. I believe, the US-Spec did not have it available. The GSFs also had an LCD climate control panel in the rear in the center, whcih was the same as the JDM/Euro Spec while the US ones did not have that.

 

More information that I found.

Generally Lexus and Toyota offer painted door handles and mirror housing / caps. So for the Lexus RC F we have multiple mirror housings that are paint matched, but they also have information like RH, LH, Auto-Tilt, Memory. That implies every single Lexus model has a Body ECU. Now that ECU is exactly located beside the front left door speaker its bolted to the door, here's a picture of the ECU (below part number is for 2022-2024 LH side) which is responsible for very important functions in the car.



Now that ECU module is established, I tried to find the RCF ECUs, found that there are 6 ECUs total for models through 2015 - 2024. And of those 6, they are paired as RH and LH. So basically there are only 3 pairs and there's only one pair for 2020-2024 (2 pairs are for 2015 - 2019), so that means all the Lexus RC F models are equipped with Memory, RCTA, BSM. But Lexus decided to skimp on the 2022-2024 models. Even though the damn controller exists which is same across the entire lineup. Since seat is already powered along with Steering wheel column there should be no change to the motors in those, again it's an educated guess at best because I do not see Lexus going to further breakdown the Seats, already they have non heated/ventilated + Ultrasuede variants in Track Edition, however do note some old IS models have separate seats with motors for memory positions.

Biggest question comes next.

As you can see in the video there are 2 wires that are plugged into the door handle which has Memory option. One wire goes into the Seat Memory switch module the other not sure what's the purpose, but on the RH side this is the only wire that is plugged into obviously as RCF does not have memory for passenger side. So the question here is if these 2022-2024 cars have that wiring, specifically that male plug which goes into the memory switch, we need the wiring diagram to see if the wire is missing can we add it to the system just at door panel or not. If we cannot add, then SOL and end of line, nobody can fit the Memory option back into these 3 years of RCF cars post face-lift.

Memory seats are very important for me. It's a big damn shame how can Lexus remove this on an 82K-100K car.

Update: Wiring Harness
Below parts are the wiring harnesses for the RCF models through its run except 2025, now there's a unique one for 2022-2024, but note that there are 2 parts with same name for all model years, not sure at all how this is all laid out inside the car.

WIRE, FRONT DOOR, LEFT

8215224390 (2022-2024 only)
8215224400 (2020-2024)
8215224440 (2020-2024)
8215224280 (2015-2019)
8215224270 (2015-2019)

The below information is from AI assistance, yes they can be useful sometimes to solve data complexity, also imgur link

 

Thank you for all of your insight and help @LexLight. I do agree with you… no memory seats in this car is annoying, and furthermore, with the seat bolster wear from ingress/egress, memory seats that slide back as the driver comes and goes would help.

Thanks again for your research thus far. One ECU module across all models is encouraging but I do see what you mean that there’s more information needed before we can be sure. I haven’t opened my door to investigate, but I’d also be curious if the wiring for the memory switch exists already but just isn’t plugged into anything because there is no module on the 2022-2024 cars.

Essentially, did Lexus make the same ECU and wiring harnesses for all cars, but randomly decide to save $200/car in the US by not including the memory seat module? If so, the wire would be in the door but not connected to anything.

 

Small correction: Mine's a 2020. :-)
In theory one could most likely swap the actuators and put them into our housings. I haven't fully taken apart the updated mirror housing but I have on the previous model/style (the round one, not the newer angular one). I swapped over, power folding actuators on my CT and kept everything intact other than adding power folding.

On Barry's video above that you linked when he's taking the driver side door panel off that 2-pin wire/connector he removes is for the door ambient lighting. The one to the left of it is the memory seat options. That has I believe at least 4-5 wires. I'd have to look at my pictures. Then on the passenger door that 2-pin connector/wire is again, the door ambient lighting.

No extra wires were floating around. I made a post years ago asking questions but what I realized and found after talking to several folks here and overseas is my 2020 had the same exact door modules that they did and theirs's also had power folding mirrors. The only thing that was different for us here in the states was that the mirror wiring was 2 wires short. When I upgraded to power folding mirrors the entire harness had all wires present. I can upload pictures of what I took when I had everything apart including the door modules that my car has. I have mem seats, BSM, RCT, dimming/heating mirrors.

The only thing that does NOT work is the "auto" button. It works in the sense that when you push it the green led illuminates. But it doesn't automatically fold the mirrors in or unfold when you lock/unlock the car. I hooked up Tech stream and I can see the "auto" function in the mirror control module but it's grayed out indicating it needs to be coded in somehow in order for the car to be able to use that function. Since we never got power folding mirrors in the states for some stupid reason someone at Lexus/Toyota would have to program a body control module to make the "auto" button work.

I don't think it would be as easy as what I did with my CT. With the CT there is a auto close/unfold module that you hook in line with the window switch/BCM harness. It's all plug and play and it works wonderfully for $30... With the RCF since it's done via canbus I have yet to find a module that works or is made for the car. I even went so far as to buy an IS auto fold mirror module but the connector for their window switch is different than ours. Was not able to plug it in at all.

Sorry for the late replies. I never see or get a notification when someone tags me. It's weird. Not sure if it's a setting or something that I need to turn on somewhere.

*On another note. I'd say if you do NOT have memory seats, take your door panel off (takes 4 minutes to do, super easy) and look to see if you have the wiring harness for the memory seat module. I'll see if I have a picture somewhere when I get home. IF you do, in theory you would just buy the memory seat buttons, and you'd probably have that function... Because the mirrors still tilt downward when you put in in reverse right? Or does that not work now either for specific year folks??

I can tell you that previous years that had the door ambient lighting which was removed for 2020+, I did NOT have the wiring for that. I had to tap off the window illumination wires. AND I will also note that previous year RCF to my knowledge had the foot well lighting dim as your put it in drive, and then it became brighter when you put it in park (same with door ambient lighting).. However, on my 2020 the foot well lighting ONLY comes on when you open the doors. It does not stay on at all when driving. There is no on when it's in park and dims when it's in drive. That feature is completely gone. Which is odd because both my wife's NX and my CT have that feature with the foot well lighting.

It would seem silly to me that they removed the wiring on the face lifted models to exclude the memory seats option... I honestly think they just didn't include the memory module on the door. BUT, it's Lexus and they do really silly things. I'd say the easiest and fastest way is someone that has the later years that does not have the module on the door, remove the panel and look for the 4-5 pin harness. IF it's there, then I'm fairly certain plugging the module in will then give back that feature of memory seats... IF the plug/harness isn't there then Lexus removed it completely then decided to add it back for the final edition which is even crazier to think they would have done that unless they had overstock of previously made harnesses/wiring...

-Nigel