Hi
@Crazyfun, I had the same concern with my breakaway receiver, as it beeped when the dealer took me through when we picked up the van, but would never beep again.
When I took it in for its first service, they checked and apparently it only beeps the first time you connect it, and not after that.
I think its a stupid design, as there is no light or beep to confirm that it is working, so you have no idea that its going to work or not.
They told me the only way to test it is to pull out the breakaway cable and check that it beeps.