Reverse Alert Warning brake and Alarm

You occasionally hear some of the bigger motorhomes with beep alerts in campgrounds. I don't think I recall a Class B with the feature. Better is that you can get active alerts for the driver if there is an obstacle in the way.

Reverse beepers are common on commercial vehicles in the US. They come on any time the vehicle is shifted to reverse gear.

The problem I see with them is that a young child isn't going to interpret the beeping with a vehicle about to back up over them. They are useful in industrial situations where adults know what to do when they hear it.

For a while some vehicles had a "proximity warning" if the vehicle was about to back into something. I think those have mostly been replaced by rear-view cameras on new vehicles. The rear-view cameras are common standard or optional equipment on most trucks, mini-vans, and full-size van. There are lots of after-market systems available that can be installed on older vehicles, too.

I have to say the reverse beepers would be incredibly annoying in a campground.