Rear windows won't go up from the rear switch

What is your question?

The rear windows will go down but only go up from the front window controls. Is there a child safety lock somewhere?

What makes this problem better or worse?

Nothing. The windows work fine but not go up with the rear window switch

How long has your 2009 GMC Acadia had this problem?

I bought the car used but since I don't sit in back I did not notice it until someone was back there.