Having been hit at a stoplight last year I'd say it might be new car time. Visible damage was minimal on my pickup, but I kept finding things that didn't work correclty anymore for months. Just so many wires, hoses, connectors, valves, etc to shift around in an impact ya know?
I was sitting still, other car was going about 20 so it was a rather good THUMP. If you just got dinged then disregard. Warranty's a good question, ask the dealer if having it fixed somewhere else would invalidate your warranty in any way. And make sure you check -everything- before you settle with the insurance company. My windshield wipers quit working after I got hit, didn't noticed till it rained, couldn't prove they were related so guess who got to fix it himself.