Explanation

"Some vehicles are fitted with an audible warning that sounds when the vehicle is reversing. This is an effective way to warn pedestrians and other road users of a reversing vehicle, but it doesn't take away the need to use effective observation all around your vehicle before and while you're reversing. Don't use the device in built-up areas between 11.30 pm and 7.00 am. Have consideration for the residents and don't disturb them with excessive noise."