Today on this 2012 Nissan Sentra, well be installing the Highland semi-custom fit floor mats for the front row, part number 45021. These floor mats are also available in black, part number 46021 and tan, part number 44021. Well begin by removing the factory or old floor mats from the vehicle with your Highland semi-custom floor mats, you will need to trim the mounting tab off the top of the floor liner. Once thats trimmed off, you can simply set it into place, sometimes even using the factory mounting point. Youll notice the Highland mat is custom molded to precisely fit the vehicle that can be easily cleaned using a mild soap and water. And there you have it, for part number 45021, the Highland semi-custom floor mat on our 2012 Nissan Sentra..