2012 Honda Pilot Touring - New key-fob only opens the tailgate window, not the whole tailgate.

I had a key-fob for my 2012 Honda Pilot Touring made at Ace Hardware awhile ago and the lock/unlock/panic buttons worked fine. The tailgate button only opens the tailgate window, not the whole tailgate. The original fob that came with the Pilot opened the whole tailgate no problem before it failed completely (battery replacement didn't work). When this happened, I didn't care at all. Fast forward 2 years later I bought another key-fob from Ace Hardware and it has the same issue. I asked the employee if there was a way to fix it in the programming and he said no sorry it only allows us to program the fob one way; and that I should be able to fix this issue in my car's dash settings.

I've been trying everything I can but I can't figure out how to fix this issue. Now I actually care because my wife and I have kids and it's handy to be able to open the tailgate with the key-fob. Anyone else ever experienced something similar? Thanks.