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PaulR
Guest
This makes lot of sense. I will just clarify that we believe GPS is not involved in auto-close. The speculation that GPS signal is required for auto-close (which I was earlier led to believe) is not well proven. The wait a while to leave the garage to allow the auto-close to get active could be attributed to the infotainment busy with other process (e.g. scanning your USB, syncing with your phone, getting connected to the mothership, etc.). If you have large USB drive plug-in, try to unplug it before you park the car the night before. Having the always connected ON also helps according to MikeBur (although not required in my S experience).
I do not leave USB plug-in, do not sync my phone, and always connected is OFF, only use wall switch to open garage before leaving and auto-close never fail for me.
I don't think GPS is needed for auto-close (leaving) but it seems logical to assume it is involved in returning home - just as the suspension system uses geolocation to raise and lower the car at a particular saved location. My door begins to open when I approach my driveway. I don't believe that the HomeLink system is continually polling and searching when I am far away from home as that would be inefficient, but it seems to know when I am close to the house.
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