95 blazer rear window problem
 

I have a 95 blazer 4door 4x4 the rear window button doesnt work but i actually not bothered by that. The problem actually is that it randomly opens when i put it in drive or into park can anybody help please i dont understand how or why it does so. But it started happening after my nephew left my light on and killed my battery i dont know if that could help answer thanks.

Ps im talking about the rear hatch window to not confuse anybody