Top third brack lights are out on my 2002 chevy trailblazer LT how do i get into that area to replace blurbs ?........(.James)

This is an enclosed led unit that cannot be accessed, no bulbs to change. Before you get a new one $$$$$ or used one at a junkyard, check the wiring through the rubber grommet. Open the hatch, you'll see a rubber grommet up top for the wiring. Make sure wiring is not shorted out right there. Pop the grommet out and pull some wiring down to check as much as you can.

you have to open the glass on the hatch pull the rubber grommet unbolt the light and pull the wiring out to show the plug and you can find a very cheap light on Amazon