[dnmc]

Here's another for your collection.

- Putting the car in reverse sets off the neighbor's home security system. https://www.reddit.com/r/cars/comments/7k12fs/neighbors_hous...

[kshacker]

Did this get solved? I think I read all the comments from OP but saw no confirmation as to what happened.

[dnmc]

I don't think the OP ever returned with a conclusive answer, but I'm somewhat convinced by the commenters that it was either a low-frequency engine sound rattling the neighbor's windows or something to do with the car's rear-cross sensor.