Transmission Not Go Into Gear problems of the 2005 Saturn ION

I own a 2005 Saturn Ion and the power steering was going. I took the car into the dealership, they said the steering motor had to be replaced, now they replaced it for free, but made me wait a week and sent me back out on the road with a car that had power steering that worked sometimes and not other times. Then two weeks later the entire car started to fail. The speedometer, the transmission would not switch gears, the power steering went again, and the breaks where pretty much gone. So after causing a big scene the car was looked at and found that the transmission module went on the car. So they replaced the part after making me wait two days to get my car back. My concern is why is a car that will be turning 5 years old next month and only has about 27,900 miles on it is having all these big problems. In the matter of one mouth I have has a new brain put into the car. The customer service was awful and rude. They all try to blame each other. When I went to pick the car up the service people would not even talk to me they told me to see the cashier she has my keys. I said I am not leaving here until I test drive it, she said ok, it's park in the lot on the side somewhere. I was like nice, you don't even know where my car is on your lot. So in the matter of one month I have the steering column and the transmission module replaced.