Speed limit detect failing--can it be disabled?

It is frustrating, and can actually be dangerous if the speed variance is drastic. It's a big change from 65mph to 25mph, and the traffic behind doesn't expect your car to drastically slow down.

I've only experienced this once so far, but the incorrect reading did cause an adverse situation and I had to immediately step on the accelerator.

 

Did the screen visualization show the speed signs as you were passing them? I ask because it could have been relying on mapping data on that stretch of the road. And the data is often wrong in some places. Also, the speed limit reading may not work on the freeway yet(for me, it ignores them completely).

 

You can turn off speed sign reading by disabling that new beta feature you turned on.

I bet it’s map data too.

 

I’m currently on a road trip from California, Nevada, Utah and Colorado, speed limit detection has been really bad in Colorado and Utah making nav on ap useless for hundreds of miles, seeems to detection slower but never speeds back up to 65.