Inside the trunk, right behind the license plate area, you can access the latch itself. There's a tab you can feel with your hand. Try to lift that tab up. That's what's happened with our 90, and I figured this out. I think it's a matter of the spring not pulling the latch back up. Got so bad our trunk wouldn't shut and so that got annoying and that's when I found mine like this. So now everytime I use the button to pop it, I check that tab with my hand before closing the trunk, and that takes care of it
