hi ,lift the rear tailgate,and remove the 2 crosshead screws at the side of the light cluster,gently bump the light cluster outwards from the tailgate,it will slide outwards , make sure you catch it or it may pull the wires.it looks from the picture that the bottom locator isnt in right.
there are 2 little plastic headed slotted things that the light slides into,then replace the screws to hold tight.
once removed you will see what i mean
