For all those who have issues with their Reverse Park Control.

I was reading the manual when I found this, and I quote "If the System has a fault when engaging reverse gear then a single, 3 second tone only will be heard"

 

I had my reverse sensors stop working and the dealer also found that my reverse lights didn't work either. There was a wire in the back of the fuse panel that were broke or something of that nature so mine never had a 3 beep warning. Perhaps because the car didn't even sense that I was backing up.