We have 2021 Venza XLE. The nav display looks strange. I don’t know if I set a switch in how maps are displayed. In a nutshell, there are red dots on the streets. I’ve attached a pic of the display. Thanks, Vince
As @DE_Toyota_fan said, route tracing is enabled. It's a navi feature that helps you find you way back to point of origin. It's meant to fill for streets not on the map or if you go off road.
If you want it to go away, you'll need to find the setting and turn it off...