Dealer level diagnostic software?

I'm new to the 2020, actually it's my first brand new vehicle ever, with my 12 I traded being the newest vehicle I ever owned prior....so there's quite a gap in age and tech for me here.

Does anyone know if Toyota is still using Techstream to service the 2020's? There is a few options I wanna change and things I wanna look at to maybe change on my 2020 that can only be done at the dealer level but don't wanna pay the dealer to do it when I can do it myself for free in my garage.

 

i have heard of people making changes using the carista app.. i have techstream from 2016 that i changed things on my 4 runner.. i havnt plugged into my 19 tundra yet

https://www.tundras.com/threads/tech-stream-in-2019.40872/

 

I have Carista actually. I found the support for my 12 to be very lacking when I used it, but it works awesomely for BMW's (my hobby/niche cars). Also never cared for the 39 dollars a year subscription for a once in a blue moon use. I do have Techstream loaded on my Win 10 64 bit laptop and works great. If Toyota could do it, so can I.

After looking at your link, I'm definitely not the only one who wants to turn off the seatbelt beeper (I do it in all my vehicles). I wanna see what kind of options if any there is for maybe adjusting the sensitivity of the Auto high beam (It seems to be more spastic at times and other times it just likes to xray oncoming drivers). Also too I like to look around and see what functions there are, on some vehicles I've found some hidden functions or settings that are kinda neat sometimes....or options that would cost extra but just needed activation.