The rear hatch of my 2008 navigator seems to be possessed. It goes up and down on it’s own at random times. Sometimes it will go up and down repeatedly. Other times it just goes up, then half way down and then back up.The only time It stays down is if the engine is running, so it is drive-able. But if you go in a store, when you come out the hatch will be up, or doing the up/down thing.
I’ve checked the switches, made sure nothing was in the way of the door. Replaced batteries in the key fob. I have to pull the battery cable to keep it from going up at night. Also have tried the reset procedure.