Hyundai: Elantra turn/brake bulbs How do I access?

There are three 8mm nuts you must remove. In the spot where there might
have been a fourth nut, there's a plastic nipple. After removing the
nuts, you may need to give the nipple a whack with a small hammer or
something similar to get the tail lamp to come loose. There's a metal rod
which snaps into the nipple from the outside and doesn't like to come back
out.