Rear hatch wont open
Liftgate Hatch will not open with not open with key or door switch.
The lift gate not opening is often caused by the handle linkage rusting and preventing movement but it could also be the latch itself.
To confirm the problem the door trim panel has to be removed enough to get in and access the latch and linkage. Although it's touch with the liftgate closed, the panel can be removed enough to get in behind it and get to the latch and linkage to get it opened.
This will let you confirm what is faulty or worn out and as per that you can get it repaired.
Hope this helps.
Thanks.