I'm Not Familiar With The Type Of Vehicle Called A Kia Rondo, But I Have Managed A Body Shop. I Would Have A Professional Body Man / Woman Check It Out.
Texases and Joseph Meehan have given you excellent advice. At the shop I would explain what happened and the pros will know where to look. Sometimes there can be damage forward of where the impact was concentrated. I've seen wrinkles in floor metal quite a distance from the impact site.
Also, exhaust system parts (hangers, pipes) can sometimes get knocked around and damaged when the bumper absorbs the force.
Do all doors on the car, rear particularly, operate (open and close) as easily and freely following the collision as they did before it ?
You are wise to consider possible "hidden damage" . Better to be safe than sorry.