This is the first I have ever heard of this happening and like you, I’m on here a lot. Ace, please update if you find out what is going on.

 

So bumping this back to the top because it started doing it again. Pretty much off and on all summer. Now that it's cooling off I wonder if it will go away again. But it's been a lot more persistent this year. I would like to figure out which one is bad so I don't have to replace all 4. Sensors are $57 ea. It already failed me once this summer when I backed into my friends blacked out truck in the middle of the night. (I know it was dumb mistake and should have been paying more attention, but it was pitch black and I was really tired) Luckily damage wasn't too bad and he waved it off.

Sent from my moto z4 using Tapatalk

 

Had this happen on my ‘09. I had a couple faulty sensors that would just cause the park aid to stop beeping. The dealership plugged in their scan tool and identified which sensors were bad. Bought knockoff sensors from Ebay and they fixed the problem.

 

Make sure they are clean.

Mud , snow, and ice can block the sensor.

 

Thanks for the replies. I figured out that I can run a self test on the Parking Aid Module using forscan and it popped all 4 sensors as shorted to ground or open. So it must have something to do with the wiring. I will do some looking when its light out and see if I can find a wire or something that is chaffed and check all of the connectors to make sure they are clean. I managed to get the wiring diagrams for the truck from work so that is a plus.