Ok I need a little more info. Do you have the power rear hatch? If so does it raise and lower with the motor? Or just raise and won’t stay up. I do not have the power hatch on mine, however I do on a Dodge Caravan, yeah I know different manufacturer.
If I raise my rear lid it stays up because of the lift struts, when lift struts go bad the lid will not stay up. They are an easy change item, if that’s all it is, and very inexpensive.
https://www.rockauto.com/en/catalog/nis ... pport,1404
My 2011 Rogue has two lift struts one on each side of the hatch. You will need a small flat head screwdriver and a helper to hold the lid up while you change the struts. The struts have a small clip one on each end with the screwdriver pop the clip up push the strut off the pivot ball, do the other end then put the new strut on the pivot ball at each end making sure you orient the new strut in the same direction as the old one. Squeeze the clip on the new strut into place with your fingers. That’s all there is to it other than keeping the $900 in your pocket.
Lift struts tend to fail slowly, sometimes not going all the way up, sometimes the lid slowly settles and you bang your head on it. Finally they just won’t hold the lid at all. I’m not a first and last authority on these but I have never heard of a lift MOTOR going bad. Change the lift struts first look at how they’re put on it actually quite simple. Autozone, NAPA, Carquest any of these stores can get them for you. You may even be able to sweet talk the Autozone guys to install them for free.
I can’t imagine a hatch motor going bad so quickly, a hatch strut I can understand. Probably just one of them is bad but one is not enough to hold the hatch up. It needs two working lift struts. Hopefully that will solve your problem.