Hello everyone,
Was hoping someone had some insight on this behavior.
My 08 TSX is sitting in my driveway, locked, and out of the blue it rapidly honks 5-6 times in a row. I don't have any aftermarket alarm as far as I know but the honking is kind of like a shock sensor warning where it honks first before blaring.

Any ideas? Greatly appreciated.

 

MY TSX did this as well, turned out my trunk had released itself. Dunno how but thats what did it for me.