Right, so when you put the fob in your pocket to leave, you activate it, and it stays active until you've completed your trip and you lock the car. But while it

Right, so when you put the fob in your pocket to leave, you activate it, and it stays active until you've completed your trip and you lock the car. But while it's resting on your nightstand or kitchen counter, it's inactive. Or is there something I'm missing?