RER Nav not auto switching day/night
After a long road trip, I noticed that my RER unit doesn't auto switch from day to night colors on the nav. I did confirm that it was on the auto mode. I manually switched back and forth between day and night color schemes a few times and then put it back on auto. When on auto, it just keeps whatever the last manual setting I had it on.
Wondering if some sort of sensor is out or if the nav software just isn't doing what it's supposed to. Any ideas?