how do I replace the rear reflector lens located on bottom corners of rear bumper?

Reverse proceedure to install.

to get the rear reflectors out, you have to take off the rear bumper. to do that there are 6 bolts and 2 clips. 2 bolts under covers when you pop the trunk, 2 bolts at the very bottom of the bumper right behind the rear wheels on either side, 2 bolts under the inner wheel well liner behind the rear wheels on either side and the 2 clips under the rear of the bumper. once you get the bumper off there is a bolt in each of the reflectors and then they are out.