Car has around 1000 miles on it. Went to shift into Drive to leave work and it kept dropping back into Neutral. Tried 5 or 6 times with same result, including putting it back into Park before trying to shift to Drive again. And yes, I was pushing in the button on the side of the shifter before I started shifting and releasing it after shifting. Finally got it to stay in Drive by holding it there and accelerating out of the parking spot. Pulled over and shifted to Park but was unable to reproduce the problem. Anyone else have a similar problem?