Here's a weird one.
I purchased and programmed the keypad for my 2016 Connect. Checked the locking and unlocking and everything worked fine.
Then I placed it under the back door handle and went to unlock the van and it wouldn't unlock. The locking worked but the unlocking didn't.
After a few agonizing moments of taking it off the van I went over by the driver's door and it worked fine. So then I went to the back again and tried it under the handle.
No unlocking.
If I went higher or lower on the door it worked fine but directly under the handle like in the windguy video above, the keypad would not unlock.
I don't know if there's something in that area blocking the signal but definitely try the location you want to use before peeling off the adhesive!