I don’t know why some JKs flicker and some don’t. I’ve heard that the problem is more common on the newer Jeeps, but not a lot of people let me play with their new Jeeps. I have put these lights in two ’13 JKs that were similarly-optioned and judging by the serial numbers came off the line not too far apart. One Jeep flickered, one worked fine. Basically, if you put the lights in and they work, cool. If you put them in and there are any weird problems, you are going to want to pick up this part. This little fire-breathing dragon (PN 96830) will slay that wizard and make your flicker go away. It will probably also work for HIDs too, but I haven’t had the chance to test it yet.