I have a 2010 Subaru Forester and my rear hatch won't open. It doesn't respond to anything nor does it sound like it's trying to (I don't hear anything mechanical trying to occur). In order to open my trunk I have to go through the backseat and take a screwdriver and manually open the latch. Google isn't helping me much. I'm trying to avoid having to take it to a shop, so I want to see if I can fix it myself. Any thoughts on how best to approach trying to fix this?