Road Sign Assist

First of all, Welcome to PC. I am sure someone from UK have better answer than mine, but AFAIK there is no RSA functionality on US models of PRIME.

I am aware of the the Navi based speed limit warning system on my 2017 PRIME, but I never use it, for in our location speed limit is whatever a driver want to drive at. It really doesn't mean anything. If I drive at or below the posted speed limit on our roads, many pick-up trucks and SUV are tail gating me. LOL

 

No RSA here on our Primes. I would suggest you use Waze through Apple CarPlay. Not sure if the UK has that capability


Unsupervised!

 

Yea, mines off on a ton of roads by me. It'll say 35 when the speed limit is 25 (and has been for years). I have map data from 2018, too.

Im sure it's great when it works, but it's actually annoying for me because it constantly pops up in the HUD and there's no way to disable it without turning off part of the HUD (which I like when it's not showing the me the incorrect speed limit).
.........
Hmm actually, now that I think about it, I can probably get that beatsonic mod that lets you use the nav screen and options while driving (by tricking the nav into thinking it's stopped). That would probably prevent the display from showing speedlimits... but id lose the active map while it was on

 

Mine can be slow to react to a new sign, but for the most part does ok.

It occasionally misses the odd sign, but that's quite acceptable to me. The responsibility to be paying attention and knowing the limits is mine.

I treat it as an assistant (it's even in the name) rather than the gospel as to what is the current limits. At its best it's handy to have, but certainly no more than that.

I have a 2016 Executive (edit: don't know if it's the same as the prime), and RSA can definitely be turned off on mine - it can be replaced with either yet another battery indicator or a real time fuel consumption guage.

I am not sure if it can only be done at a standstill or in accessory mode or something. Similar to the navigation lockout. I can check over the weekend.

 

All we have in the US is speed limit information obtained from the out-of-date onboard navigation database.

 

Probably not the answer you're looking for, but just use your phone.

Toyota electronic package/infotainment system has been noted to be garbage by many, for some of the reasons you now are experiencing.

 

Yeah, I'm on a very slightly older model (UK 2018 PHV) and after a few days of testing I've turned off the road sign recognition. The funniest example of Getting It Wrong was when I overtook a truck on a highway, and the truck had a sign on the back saying "This vehicle is limited to" with a miniature speed limit symbol, and the car promptly told me that that was the new speed limit

In my car the navigation system still shows the speed limit on its screen, though there isn't any way to get it up to the main dashboard or the HUD. It's a shame if that's been disabled in the newest version.

 

So, I'll be 'that guy' and ask the obvious question. What purpose does this feature even serve? Shouldn't the driver actually be looking at the road and thus paying attention to the road signs directly instead of looking at distractions inside the car? After all, that's worked for decades before this tech.

Now, if you'll excuse me, I think there are some kids I need to yell at until they get off my lawn.....

 

If you find yourself in a different city or a part of town you don't know, I think it's great to have a reminder of the speed limit where you are. In Canada, this feature isn't enabled, but I was in North Dakota over the weekend and I liked having the speed limit displayed.

But if you want to be critical, the Prime displays a LOT of information of negligible value...

 

UPDATE: I figured out how to turn it off on the HUD. You have to use TechStream and set it to "off".

It still displays on the navigation as well as the MID (which is perfect for me).

 

FWIW, I can turn the RSA function off on the "Vehicle settings" LCD. Central Europe version of the car.

 

We have that here, too. But it still appears on the HUD. That only turns it off from appearing on the MID from what I can tell

 

My problem is it appearing on the HUD. I dont know any other way to turn that off other than in TechStream. I'm not sure that RSA vs. Embedded data affects that, but perhaps it does, if it doesnt get it, it just wont appear.

I hate duplicated (or in this case triplicated) information. I like seeing my speed/pseudo tachometer/EV miles remaining on the HUD. The speed limit updates obscure 2 of those things and the only way to get around it was through TechStream (I'm so happy that its possible).

Sure I could leave my MID on the "pseudo tach" and set me trip meter to show EV miles remaining, but I prefer to use them for other information.

 

My manual says that "Route guidance" in the HUD can be set to on or off in the settings available in the MID. But it doesn't say if that's speed limit or what. My Premium doesn't have HUD, so I can't experiment with that. Also, it seems to be the only HUD setting that is customizable. (Page 735 in my manual.)

 

That's not the same here. Switching it off makes it disappear from the HUD (I think, I actually have it off all the time so I don't recall if it *can* appear in the HUD)

 

Here in the States .Speeding is one of those laws that gets broken on a regular basis.
Police have radar and if caught
a driver will/can be pulled over
and fined. Telling the officer that
your RSA told you the speed limit
was 50 when in fact it was 25
will not get you out of a ticket.
Therefore it should not be taken
as gospel. Just sayin. If you find it annoying just turn it off.
My friend finds his chk engine light annoying so he puts black
electrical tape over it..