During my first winter with the KK, I noticed that on especially snowy days, I would hear a chime noise and see a green wrench illuminated on my dash. Ultimately I discovered that the green wrench indicates an issue with the rear parking sensors.

Any time I've had an issue in the past (it happened during a couple winter storms), I simply cleaned the sensors and they worked fine. No more green wrench.

However as of the past couple days the green light has been going on and off intermittently. The sensors are clean but I still have the icon and the noise.

Has anyone else had any issues with their reverse sensors? Any idea on where to start looking?

For reference, here's a photo of the symbol:

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Current
2012 KK Sport, OME lift, Mopar skids, DuraTracs, Mopar Grille Guard

Previous
98 ZJ Laredo SE 4.0, 2" Skyjacker BB, JKS Quicker Discos, Goodyear Wrangler MT/Rs, K&N FIPK, Kolak cat & back exhaust, Westin Safari bar, KC lights