During the day, if the sun is right and the top it up, it interferes a little. I haven't driven at night with the lights on as we just got the switch put in today, so I don't know if it will bother me or not yet. I'll let you know. It doesn't bother me most of the time, but when leaving the garage or the parking garage, I am being careful backing up if backing into the sun. I really like it and like almost anything, it's all in getting used to it.

Shawn