[Siedjeey]

It was shipped from the factory with the update. There could be hardware or software revisions between manufacturing dates.

From what I read from the Solterra forum, the update does two things: 1) adding the SOC %, 2) moves reserve wKh from the below 0% SOC to the usable 0-100% . Posters from there suggest that instead of having a 80 km of sub 0% range is now 26 km now; this assumes you have 54 km more range in the 0-100% SOC.

Personally, for my needs it does not make any difference between those two points.

Yes, just had it confirmed by my contact at Toyota Motor that they weren't yet updating the privilege or luxury lines with the update due to the bricking error. The update should come soonish...

 

[RZNL]

Me RZ executive had an update last Friday together with a first maintenance check. All was fine, the build version is still on 2050 but now I do have the battery percentage and the difference between with and without A/C in the app is only 13 km (324 / 311 at 88% battery level). I did not drive much since I was in the garage, let's see what happens after a longer drive and charging. I asked Lexus to activate the option to open and close the windows with the key, that works now.

 

[C4Edgar]

No luck yet here either.
Anyone else In the USA get the firmware update with the battery percentage?
(I have the 2023 Premium trim)

 

[imurrx]

nope. not holding my breath.

 

[Siedjeey]

No luck yet here either.
Anyone else In the USA get the firmware update with the battery percentage?
(I have the 2023 Premium trim)

The update should be available to all now. I just got mine last week at the dealer. It took a few hours to complete.

 

[MikeNV]

I'll add to the confusion. My US 2024 RZ450e Premium with HUD and a 12/23 build date (driver door frame sticker), delivered 3/14/24, came with software version 2170 and the battery % level. I'm pretty sure my dealer didn't upgrade anything. So it looks like US cars have been getting the upgrade from the factory since at least 12/23.

By the way, I'm pleasantly surprised with my RZ's range since we bought it mainly for it's styling and 20" wheels. Getting approximately 200 miles per 80% charge. I'm not running to zero, that's actual plus estimated remaining miles.

 

[sirwilliamblackstone]

My Lexus dealership e-mailed me this
"OTA updates for our Lexus Interface models are rolled out in “waves” rather than distributed everywhere simultaneously. I’ve attached 2 pics showing the software version (2170) that does show the SOC% within the on-screen dashboard image (see images). If your software version is lower than 2170, that would explain the “missing” SOC% graphic. If you want to bring your vehicle in so we can determine if a flash-forced update is available for your vehicle, you can set up an appointment with our Service Department.

View attachment 547 View attachment 548 "

I am going to call them tomorrow to schedule my appointment.

For what it's worth, my screen also shows Version 2170, but I do NOT have the SOC% display on my dashboard. Image attached.

 

[C4Edgar]

So looks like the only ones not getting the update anytime soon is the 2023 450e premium
After asking the Lexus tech in Los Angeles.
Unless anyone has an update?

 

[Ivenhoe]

Does the 2023 Premium have the HUD ? Here in the UK it doesn’t. Lexus IT fiddled with the update after it was first issued and it crashed all the HUD’s. It was so bad that the affected cars had to have the whole dash removed to replace the HUD - guaranteed to bring creaks and groans. It took Lexus months to sort the problem, but I believe it was sorted.
My May 2023 car was one of the first to have it and it installed well and hasn’t created any problems.
I‘m suggesting this as you said it was a 2023 model - the initial version of the update came in the UK in Feb 24 and all 2024 cars came with it installed.

 

[C4Edgar]

Does the 2023 Premium have the HUD ? Here in the UK it doesn’t. Lexus IT fiddled with the update after it was first issued and it crashed all the HUD’s. It was so bad that the affected cars had to have the whole dash removed to replace the HUD - guaranteed to bring creaks and groans. It took Lexus months to sort the problem, but I believe it was sorted.
My May 2023 car was one of the first to have it and it installed well and hasn’t created any problems.
I‘m suggesting this as you said it was a 2023 model - the initial version of the update came in the UK in Feb 24 and all 2024 cars came with it installed.

Mine 2023 Premium has the HUD.

 

[BillLin]

2023 brochure

 

[C4Edgar]

2023 brochure

View attachment 717

I wonder if I can order the Acoustic glass and replace it on my Premium?
or would the door cards be different?

 

[Ivenhoe]

Doesn’t the Luxury have the facility to make the panoramic roof opaque ?

 

[BillLin]

yes, there is the electrically operated panoramic roof shade in the Luxury trim.

 

[BillLin]

Mine 2023 Premium has the HUD.

I'm curious how your Premium received the HUD upgrade...

 

[GSHRD/RZe450]

My US 2023 RZ Luxury came with the battery % level, so already updated?

OTA software updatable, but seems like the old software development style. I look forward to seeing what Lexus decides to update and when.

Where do you see your battery percent level? Mine is a 2023 also but are you in the US? All mine will show is the mileage that is left. When I spoke to Lexus they said that there is no update for the US market and that all the cars are different specs for different regions. I don’t understand why Lexus would completely disregard the US market but give it to everyone else.

 

[GSHRD/RZe450]

No luck yet here either.
Anyone else In the USA get the firmware update with the battery percentage?
(I have the 2023 Premium trim)

I too have the 2023 Premium and have yet to see any update like the people in the UK are getting.

 

[GSHRD/RZe450]

I'll add to the confusion. My US 2024 RZ450e Premium with HUD and a 12/23 build date (driver door frame sticker), delivered 3/14/24, came with software version 2170 and the battery % level. I'm pretty sure my dealer didn't upgrade anything. So it looks like US cars have been getting the upgrade from the factory since at least 12/23.

View attachment 629 View attachment 632

By the way, I'm pleasantly surprised with my RZ's range since we bought it mainly for it's styling and 20" wheels. Getting approximately 200 miles per 80% charge. I'm not running to zero, that's actual plus estimated remaining miles.

View attachment 631

I wonder how you got that since I have a 2023 premium also. Are the dealers just picking and choosing who to update and who not to?

 

[bwarren]

Just reading through these older posts, I'm assuming everyone now has this update. I have the RZ 450E Luxury version here in the US. I had the update performed in May'25. It was called "25LCO3". It now shows the battery percentage and I appear to be getting a higher Mile/KW. Before I could get as high as 3.1, now I routinely get 3.6. I do not put a lot of highway miles on the car, as most of my driving is around town. Did notice Lexus is coming out with more efficient battery technology for 2026 and appears to be on track to start delivering solid state batteries by 2027-2028. This will be a "game changer" for the automotive world.

 

[BillLin]

Welcome to the forum, @bwarren. What part of the country are you in?

The warmer temperatures can account for differences in efficiency even with AC usage. I don't think there would have been significant efficiency changes in the firmware update. I have heard of buffer protection level changes as well as better range estimates, but you have the mi/kWh for your type of driving so you should have a better idea than your car how far you can go.