I got my 96 Blazer LS about two years ago from a family member and the rear hatch worked fine, no problems. About a year ago this started happening:

When I unlocked the car, the hatch poped open.
When I went from D to R or R to D (most of the time), it poped open
When I went into Park, it poped open.

I ended up just taking out the fuse that controls the hatch and that solved the problem but now to use the hatch I need to put the fuse in and also that same fuse controls the horn and the main lights in the cab (not ones that click on)

I havent really cared about it until now that im looking to sell it and that will be a major turnoff for potential buyers.

Just wondering if anyone knows how to fix the problem or how to make it so I can keep the fuse in and still have it not work

Thanks for your time.

 

Yeah i have the same problem except i pulled my fuse yet it still continues to open when going into drive or reverse but the funny part is that when i pull my fuse only my door locks stop working the rear hatch window still opens.