I've been driving my 2017 ES300h for 8 years now. One of my favorite things about the car is the colorful and detailed map. However, for no apparent reason the map has started switching to split screen whenever I'm on a highway - then it switches back to full screen on secondary roads. I much prefer the full screen all the time (as it's previously been.). Does anyone know how to set it for full screen all the time? (The owners manual and internet don't have answers which work.). Thanks in advance!