The parking sensors went crazy in reverse after I put on a new larger wheel/tire on the factory spare tailgate wheel mount thinking the tire/wheel must be protruding into the bumper's sensor area. In reverse could clearly see the tire taking up quite a bit off the lower area when viewing the Uconnect monitor. I thought after I got my new aftermarket spare tire mount it'd fix the issue, it did not. What I discovered is that it was not a sensor per say, at least not one of the sensors in the bumper. It was the actual camera that was sensing!
The camera was reacting to the tire taking up some of what's displayed on the screen, the tire was protruding a little beyond [towards the front of the Jeep] relative to the red line on the monitor. I then tested it. I disconnected the camera, put it in reverse with nothing behind me, and the alarms did not go off. Same scenario with the disconnected camera, I put my garbage bin behind the vehicle and it did go off once I started to get close to the bin, the bumper sensors worked as they should. I then realized it was the camera, it 'sensed' as well.
So... I removed the camera and manipulated it to where the tire was only barely seen at the bottom of the screen, which pushed the red warning line away from the vehicle a bit further, the tire was below the red warning line when viewing the monitor. I then glued the camera into place. Problem was solved!!! It only alerted when something truly was behind me.
Now, prior gluing the camera I did mess with the camera a bit to keep the red line as close to the vehicle with as little but still adequate clearance as possible while also keeping the left and right green guide lines perfectly straight. But again, once I had the camera set up with little visual tire interference on the display, I no longer had crazy false alerts. Be sure to keep the steering wheel perfectly straight when setting the camera. To this day it's been working great.
IF you're having the same issue perhaps perform a quick easy test. Simply unplug the rear camera and see if the crazy alerts stop while nothing is behind you. With the camera still disconnected put something 15' behind the vehicle then start backing into the item. If it only starts to alert once you get close you then know it's a camera issue.
The camera was reacting to the tire taking up some of what's displayed on the screen, the tire was protruding a little beyond [towards the front of the Jeep] relative to the red line on the monitor. I then tested it. I disconnected the camera, put it in reverse with nothing behind me, and the alarms did not go off. Same scenario with the disconnected camera, I put my garbage bin behind the vehicle and it did go off once I started to get close to the bin, the bumper sensors worked as they should. I then realized it was the camera, it 'sensed' as well.
So... I removed the camera and manipulated it to where the tire was only barely seen at the bottom of the screen, which pushed the red warning line away from the vehicle a bit further, the tire was below the red warning line when viewing the monitor. I then glued the camera into place. Problem was solved!!! It only alerted when something truly was behind me.
Now, prior gluing the camera I did mess with the camera a bit to keep the red line as close to the vehicle with as little but still adequate clearance as possible while also keeping the left and right green guide lines perfectly straight. But again, once I had the camera set up with little visual tire interference on the display, I no longer had crazy false alerts. Be sure to keep the steering wheel perfectly straight when setting the camera. To this day it's been working great.
IF you're having the same issue perhaps perform a quick easy test. Simply unplug the rear camera and see if the crazy alerts stop while nothing is behind you. With the camera still disconnected put something 15' behind the vehicle then start backing into the item. If it only starts to alert once you get close you then know it's a camera issue.
