Won't Go Into Park Sometimes

I don't think so Not necessarily with these cars but it sounds like the parking pawl which is electronically controlled in this setup is not dropping down into place or something along those lines I guess it could be hanging up it's a switch I think that moves something to basically do just what a parking Pawl does. In a regular automatic car. The question is is when you push the button to put it in park if you're standing outside the car do you hear the solenoid click like something's closing or dropping clink? I don't know what's involved in replacing it whether the transmission has to come out or it can be done with the car assembled not real sure I'm sure it's here in the forms somewhere.

 

Sometimes people hanging PPE masks on the shifter have had these symptoms. Sometimes the springs in the shifter will fail. Sometimes it's the park button. Hopefully you just swap out the shifter or the button and problem solved. Of course beware that a failed hybrid system will sometimes lock the car in neutral with lots of warning lights and it's important to make sure that's NOT part of the problem.

 

The power to the motor that puts the transmission into Park follows a path inside the underhood fuse box that seems to sometimes get flaky in Gen 2.

If you do some searching with combinations of "park", "fuse box", "blue wire", I think you'll land on some of the threads that talk about it.

 

12volt battery being dead/weak is likely the cause of #2 on your list.