IIRC, dealer customization is offered free of charge just once, either during or before the initial service appointment. After that, they may apply a fee. Also, some settings listed in the customization sheet (like the Seat Belt Reminder) might not be changed by the dealer due to possible liability risks.

If they charge a fee for the change, I’d recommend trying the Carista EVO/APP yourself first. I’ve used it to modify settings for our vehicles and friends; and it’s readily available on AMZ. You could use the 30-day money-back guarantee, to test the app/device risk-free and decide whether to keep it afterward. I chose to maintain my yearly subscription since we have more than one vehicle and I like to help friends; also I already owned an OBD2 Bluetooth adapter. IMHO It offers excellent value, not only for configuration options but also for diagnostics and live data.

The next step-up is Techstream, which is a completely different animal.

 

If they charge more than 40 dollars, I might as well get the device then. 😂 I think I might get it anyway. I didn't want to deal with another subscription, and I didn't see the 40 dollar one until you mentioned it. That's a better option for me.

 

When you first purchase the adaptor, I believe the first month is "free"... the adaptor will always work but you just don't have access to the customization features and some of the more advanced diagnostics. Having said that, if a year or so later you need to change or check something it'll cost about $7.50 for a month of use. Just don't forget to "cancel" the "subscription" when that month is just about finished. You can always check your TPMS system with the basic, free software however. Here's a partial, sample of what info you can dig up: I used this information when I was purchasing the 2020 to make certain there were no codes. These are screen shots off the Carista App on my iPhone.

 

In all of this generation of ES Owner's Manuals, "Customizable features" is the entry in the index. The page number listed for that entry is the starting page of the "8-2. Customization" subchapter. The second page of that subchapter is the start of the table of customizable features with possible settings and the means of changing the setting (Multi Information Display, center display, or dealer).

But as ATL350 indicated in his above post, the Owner's Manual's list of customizable features doesn't include some of the "Programmable by Dealer" customizable features that are listed in the "Lexus Personalized Settings" pdf form (that ATL350 posted a link to the 2024 ES version).

P.S. A download link to that pdf form is supposed to be found at the My Lexus Resources model type and model year selected web page in the "LEXUS PERSONALIZED SETTINGS" section; however, the generated link for the 2024 form version is malformed (ATL350 posted the fixed, working link) and a working link to a 2025 form version has yet to be found. Other than the model year printed on the form, nothing has changed between the 2023 and 2024 model year form versions (and presumably the 2025 version if one could be found) so you can use one of those versions in place of the missing 2025 version.

 

Techstream is what dealer uses. Look into the interface in using. It is very easy to use but does require windows pc. As for the blinking you will have the option to try out higher numbers at your convenience and if you go to dealer twice another charge will happen. Most have a 1/2 hour minimum charge.

 

I think purchasing the device is a really good asset to have. You might want to even look for a bi-directional tool on Amazon just for the Toyota Lexus line even if you have no repair skills. The information the tool provides can be very valuable. One, you could update your settings at any time you wanted to. But here are a couple of other cases where the tool would be beneficial. If you have a Check Engine Light illuminated, and you take it to the dealer, they can tell you anything and pretty much quote any dollar amount and further tell you how dangerous it could be for your car. With this tool, you can look up the Trouble code by yourself, and post it in a lexus forum or even youtube and it will often give you information on the severity of the issue, along with how much the job should cost. You can even clear the code to see if it returns or if it was just a fluke.

Here is a real scenario that I have seen in our shop. A customer comes in with every trouble light illuminated on the dash. The Traction control light is lit up. The stability light is lit up. The ABS light is lit and the Check engine light is lit up. Customer is scared to death. I read all of his codes, and If I was a crook, I can pretty much tell him anything and charge what I want at this point. When I actually read the codes, there was a network error that stopped communication on the network. Sounds scary doesnt it? What was actually happening is his battery was going bad and it disrupted network communication during cranking. Replace the car battery and clear all the codes and everything is fine.

Here is another scenario where the scanner can really help. Maybe you, your child or a friend wants to purchase a used car. There are no lights lit up because the seller cleared them all with his scan tool. With your scan tool you can check to see if all the self check monitors have been run. If some of them are listed as not completed, you know that trouble codes have been deleted without insuring they were correctly being repaired. It should show that all monitors have ben run and completed, and then you know that someone didnt just clear the code to sell it.

 

Well, you all convinced me to get it. Definitely seems worth it for all the functionality and customization it can do. I absolutely love this car and I plan to keep it for a while, because I'm not so keen on the new 2026 ES 🫣
I appreciate all the information.