THE SUN VISOR ON THE NISSAN SENTRA WHEN FLIPPED DOWN CAUSES LOSS OF VISIBILITY WHICH CAN MAKES IT VERY DIFFICULT TO SEE CARS AHEAD AND REQUIRES ADJUSTMENTS WHICH CAN MAKE IT VERY ANNOYING TO USE AND LEAD TO LOSS OF CONCENTRATION REQUIRED WHEN DRIVING. IT IS A BAD DESIGN AND CAN CAUSE ACCIDENTS AS IT DID IN MY CASE AND SHOULD BE FIXED! *TR