Not a big deal to pop off the grill.
Reach in with a screwdriver at top left of light housing
and lift up slide lock. Same on right side a little more
difficult to reach. Work entire housing out, pull off rubber
seal at back of the light you want to change. reach in and twist
bulb holder, pull out and undo small catch and pull bulb out.
Use a glove or rag so you don't touch the new bulb when you
put it back in the holder. There you go.