PLEASE use part #.....This is a genuine OEM Cadillac right or left side front bumper mounted blind spot or lane departure sensor for a 2017-2021 XT5, actual item pictured. This part is genuine OEM and it is tested working and the part # is 23391673. This assembly is in great used condition, and fits left or right front bumper which is where we removed it from. If you want a genuine part that will fit your car at a great price, this is it. I do not have vin #s, so if you need one this is not for you. Please see the pictures and judge for yourself. Please see my feedback, and thanks for looking