I first noticed the dents in my 99 EX after I had to continually close the doors manually after they quit working the first time. When pushing the doors in to get them to latch after sliding them closed, I noticed that my fingertips on the on the rear of the sliders had dented in the metal. My wife's fingers had created other dents nearby where her fingers natuarally landed. See if your fingers fit your dimples when you close it manually(or your palm). Also, similar dimples are created when the tailgate doesn't latch all the way and you naturally give it that extra push. Try to remember to open it again and slam it harder instead of pushing it in that last bit manually. Hope this helps.