Correct. It is beeping all the time in reverse if are object near or not.AZ_Path wrote:So if I understand you correctly, the parking sensors will beep constantly when you have the transmission in Reverse regardless of whether or not there are any objects near you?
As mar1 said, it could be a bad sensor or could be a problem with the circuit board that controls this feature. You could try just disconnecting the battery for a few minutes. That would reset the microcontroller. I imagine this module isn't powered when the truck is off, but you never know how it's designed.
If you're handy enough to track down the sensors as mar1 suggested, try measuring the voltage with your multimeter and see if you notice any differences on any of the sensors. If not, you may have a bad circuit board.