There are a couple of potential guilty parties in the event that Your Jeep Renegade back stopping sensors arent working. The clearest is that You could have soil and trash covering a portion of the sensors,so it cant hurt to really take a look at them and clean them,for good measure. Another choice is that You could have free battery links. If they arent secure,the cameras may not be getting sufficient power,which would prompt conceivable power disappointments. On the off chance that that isnt the issue,assuming You have Uconnect,the adaptation Youre utilizing may be creating issues for Your cameras. You can inquire as to whether there was a new move up to check whether that fixes it. On the off chance that that doesnt fix it,have them reinstall the most recent variant of the product,and let Your showroom take a more top to bottom hope to sort out the issue.