Thinking there is an issue with the trans. Before I go to the dealer I was hoping someone on here knows these cars. When on the freeway when you come to an incline and you depress the gas pedal slightly to keep speed it feels like the trans slips momentarily, the RPM raises a couple hundred RPM then it goes back to where it was prior. It doesn't seem like it downshifts, maybe converter unlocking not sure. If I leave the trans in manual it doesn't do it. Also in stop and go traffic seems to surge on deceleration in the lower gears. This is the 8 speed auto. The car is new, has 1200 miles on it now.