The backup display in my 2015 will occasionally show a black screen with a jumpy image consisting of RGB (red, green, blue) streaks. It looks worse than the photo Michael posted... the image not that distinct. Most of the time the display is normal. Like Michael said, there is no consistency to when it happens - weather, time of day, phase of the moon - doesn't make any difference. I've even seen it do both - display fuzzy and then display normal - within an hour of each other.