I have a service manual set from when I had a Saturn Ion. If it's anything like before, you would have to raise the vehicle on a level lift and remove a plug. Then, you would need to perform different procedures, depending on the temperature of the fluid.
BTW, the service manual set for the 2010 Malibu is not yet available from www.helminc.com
or I would be combing through it right now. It's only $150 and cheap enough insurance when you need things done right.