Grasp the front center and the rear center of the dome lamp housing
and squeeze the housing together until the housing releases form the base
plate. Use a flat-bladed screwdriver to assist in the removal if necessary.
Replace the bulb if necessary.
Insert a flat-bladed screwdriver in the U-shaped cutout around
each integral fastener in the base plate and pry the fastener downward in
order to release the plate from the roof.