Originally Posted by mefly2
My screen went to a dark background Sat night as well ... I wonder if there is an auto brightness that is triggered by a photocell data line on the GSW ? The instructions are sketchy at best and I haven't yet taken the time to read the on line version... too busy getting in ride time before the snow hits tonight / tomorrow.
All newer Garmin GPS's switch between day and night modes at sunrise and sunset respectively. It is based upon your actual location, so if in Fairbanks, Alaska during the summer it pretty much stays on day all the time.
You can adjust the brightness at each level when it is on that level and the GPS will keep the level that % each time it switches. Default for night is 20%. If you go to Settings - Display - Color Mode you can select day, night, or auto, for background changes. Default is auto.