My backup sensors are no longer beeping on my Mazda CX-5. It's a 2016 model. Is there a way for me to fix it? The camera works fine, just the beeping signal is gone.

 

The camera has nothing to do with the backup sensor. Rather, it works in conjunction with the BSM system which has sensors in the rear bumper on either side. Check to see if the BSM is working, but you will probably have to take it in for warranty repair.