3rd brake light bulb replacement

[GeoffInNC]

Hi newb here. My daughter's 2018 US Fiesta sedan needs a 3rd brake light bulb. The videos on YouTube all show removing screws to get the housing out. Hers doesn't have any screws. Can someone confirm it should just pop off? I'm putting a little force on it but don't want to break it and it's not coming off. Thanks in advance for any help!

 

[Handy Andy]

Please post a pic of what you're up against...

Because of several directions this could go.

Mostly that the housing takes the place of a trim rivet on both sides of the housing.

Huh? - so in a hatchback, it would have two rivet fasteners to hold that rear upper cover - one to each side of the housing that the 3rd brake light is.

That is, for a sedan. The trip pieces this thing is has changed thru the years so one range of earlier models needs a screwdriver tool, while another needs just a simple plastic trim pry tool instead.