Problem with the rear windows, blutooth, and radio controls

I've only owned my Malibu for a few weeks now, and the first thing I can say about it is that I honestly do love it. The gas mileage is good, its roomy, and extremely quiet!

With all that said however, I have noticed a few problems with it. I bought my 09 used with 36k on it (the newest car I've ever owned), and accepted that since it was a used car there would be a few problems with it. So far, I have noticed three problems:

a) The second and third pre-set buttons on the radio do not work (push them and nothing happens).
b) The blutooth does not work (it will not pair, doesn't seem like there is any signal coming from the car).
c) Both back window controls are not working. I can control them on the drivers side, but on both back doors, both controls do not light up, or roll up/down the window.

The car used to be a rental car, so I'm thinking they disabled the blutooth somehow.

Anybody have any ideas what the problems could be? Remedies?

Thanks in advance,
Tom