Automatic Transmission problems of the 2009 Honda Civic

I drive a 2009 Honda Civic lx 5 speed automatic transmission two problems need to be addressed and the dealership says they are completely normal, and I know they are not normal. Problem 1: transmission: when coming to a stop, usually under 10mph the transmission shifts very hard into first gear. So hard that it shifts hard and I have my foot on the brake pedal the car wants to launch me a little further. Twice now I have almost hit somebody because when it shifts hard into first it wants to keep going, I have to sometimes pull emergency brake to make sure I don't hit anybody. It doesn't happen all the time but when it does it scares me. Second problem: brakes: the brakes in this car are horrible even with my foot completely down the car still has a hard time slowing down and again I seem to have to rely on the emergency brake to help me stop. I have a 4 year old son I bought this car because it was rated safe, but I'm terrified to take him anywhere because I don't know if I can stop or not. I talk to the dealership and they say both problems are completely normal. Its brand new with only 5500 miles on it so I know this isn't normal.