Here is the right answer for the next person looking here. This was for a 2013 Toyota Venza. On the drivers side dash, to the left of the pull out change drawer, there is a switch to turn on/off the power lock system. I never even knew this was there after having the Venza for 9 years. Push it in to turn it off. Go the the hatch and use the button that you would normally use to open the hatch without using the key fob. The lock should open and you can now shut the hatch.Short of going to the dealer how do I unlock the hatch mechanism when hatch is already open. I mistakenly locked it while hatch was still open. Button under the 'z' nor dash button will unlock it.