It would appear that my rear tailgate needs adjustment. Or at least the device that tells me the door is not closed. It will only go out if I slam the door hard; just letting it close normally won't turn it off even though the door appears closed properly. Also the door is further in on the left than the right. I tried loosening the hinge bolts but there is no adjustment there. And I can't figure out where the 'switch' is that tells the system that the door not closed. Any help would be appreciated. (2018 TH)