Distronic, active cruise control and the park distance will throw off the K band, I use a Escort 9500, it's a learning radar detector, after a few times it recognizes it's the same device causing the K band to go off, so eventually it doesn't alert you.
As for night vision, I never had the need to use it, so I can not comment on that.
Almost all the time KA band or the laser is the really deal in our neck of the woods. I really don't pay attention to the K band.
Last edited by oneofew; 08-07-2012 at 08:55 PM.