I have a silly problem. I can't get the hatchback in my 2010 Prius II to open. I've used the door unlock inside the driver's door to unlock the doors, but for some reason the hatchback refuses to open. I checked in search, and didn't find anything helpful. Anyone have an answer for me? Incidentally, my keys are basically two remotes with an open, a lock, and a panic button. Is this what I should have?