Hi guys and girls. Got in the car the other day and went in to reverse, car starts beeping etc so got out nothing there then started again and it started beeping and went to a constant beep. Thought nothing more of it and it sorted itself out so went about my business for a few days. Got in today and it just does one long beep when it goes into reverse and then doesn't beep or anything when reversing. Any ideas what it might be people. It's not been bumped (as far as I know) or damaged at all so just randomly started.