I have to passive key push button deal on my trailhawk. I accidently shut it inside when closing the hatch and the hatch popped back open. I also attempted to do this by shutting the driver's door with the fob inside and it also unlocked. I did not have the other passive key fob near the vehicle at either time. Not sure if that helps or not. I would just experiment with having the extra key/fob somewhat in the area you are doing the test.