Realism

2020 Sierra 1500 SLT. According to the indicator on the cluster, the right front parking assist sensor keeps beeping over nothing being there. It goes to instant red alert. I could be pulling up to a stop sign or going through a parking lot or what not, and it will screech at me worse than my ex wife and her nagging. The further right front sensor is a little jiggly, maybe a 1/16th of an inch, but I did shove a piece of paper in there to stabilize it, only to be met with same results. Not sure if there is a way to reset the things. I have been trying to find a manual but I guess they dont make them anymore. Just bought the vehicle and it is outside warranty. Anyone know how to diagnose or reset or know what is going on. I like the feature since I am new to driving a huge truck (they used to be so much smaller back in the day, i miss those days), so parking assist is a little helpful as I readjust my depth perception on the Tank.