I just picked up my '16 and was going through the owner's manual and had the same question.
omar302 is correct.
from p58:
"When you electronically lock your vehicle, the power door lock switch no longer operates after 20 seconds. You must unlock your vehicle with the remote control or keyless keypad, or switch the ignition on, to restore function to these switches. You can switch this feature on or off in the information display."