Insert a plastic pry bar tool into the notch at the front edge of the light housing (closer to the front of the SUV). (paulstravelpictures.com)
If you've never swapped out a watch strap before, it's a pretty easy affair, but we do recommend shelling out a couple extra dollars for a spring bar tool set, as well as a tool to help with removing links for a proper fit. (androidcentral.com)
(We've been using this spring bar tool, and this links removal tool.) (androidcentral.com)