Hi all, have a problem with my 2017 LX that just popped up. For some reason I can only open the tailgate when I push the tailgate button on the fob. Hitting unlock twice is only working for the four doors. I've had the car for almost 3 years and this started out of nowhere. It's happening with both fobs. I did read the owner's manual and did not see anything that would help me resolve this. Any help would be appreciated.