I haven't had it hit anything... but it acts so stupid most of the time with my garage on the latest update. It will exit the garage fine. When reentering it gets to the threshold, then decides that it's going to angle in more so that the rear is heading at a ~15 degree angle towards the wall while heading back. Then it gets too close, stops and it's done 2/3rds into the garage. lol. The threshold of the opening and the wall are about ~2' away from each other, so the car must see this open space and think it's crooked or something. It's worse if my wife's car isn't already in the garage, too.
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It can not. It is hard wired to the CID and it can only be done as an overlay on to the 17" screen. Nothing else is ever able to view that video. Even with a hacked CID there is no way to view the rear camera feed. It can only be sent to the 17" screen.
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I don't believe we have any indication that the rear-facing camera can be used for anything other than relaying video to the 17" display. As far as we know, it is not in any way tied to any of the car's safety systems.
It can not. It is hard wired to the CID and it can only be done as an overlay on to the 17" screen. Nothing else is ever able to view that video. Even with a hacked CID there is no way to view the rear camera feed. It can only be sent to the 17" screen.