1. I set my Homelink for the garage door. It worked when tested, but now it doesn't seem to transmit. I push the "button" and the little waves animation doesn't come on anymore. I assume that means it's not sending a signal. 2. What does the little black Tesla icon at the top left of the traffic/objects display mean? I see mine turning on and off as I drive. 3. Why doesn't my car always open when I'm close with the phone? It work about 80 - 90% of the time, but sometimes it tells me to use the card instead. Thanks.