I believe this trim piece is called the handle panel, it's the area right over the license plate where the 4 Runner lettering is
Was closing gate and noticed what felt like a bubble in the plastic right above the E, it's about an inch and half, maybe two inches in diameter, but I can't move it with my finger..almost looks like the plastic got deformed or melted.
Took this shot in the parking lot, difficult to see from this picture, but it almost looks like a fingerprint.
circled area
Piece looks like it can be removed and replaced pretty easily but I'm more concerned with what might have caused it..Worried there might be a loose wire or something going to the license plate lights that's shorting because I can't really think of anything else that would cause this. Thoughts?