Originally posted by joey2003:
My advice is that you consult your mechanic on your next servicing.

by then maybe knock down a few old ladies, 3 lamposts and maybe half a dozen bumpers during parallel parking liaoz lor.
depends on the specs of ur reverse sensor i suppose and how they were installed. some good ones will detect everything that comes close to ur rear bumper no matter where they are. other pariah ones maybe u hit something liao then the fella beep

might as well go to the person who installed it to ask. dun think anyone has the answer since dunno which model of reverese sensor u using.