Get this message when turning on the car. There are three wires hanging down aft of the right rear wheel. What is the best way to tackle this? No OBD codes. 2013 XJL 3.0.

 

The radar units are sitting behind sides of the rear bumber. and the wires hanging behind the rear wheel, by logically thingking, these are wires of the radar unit. Does the wires still have connector on? If yes, the plug the connector back to the unit.
If no, then propably the radar unit have been dropped from its mountings and rest now roadside somewhere you have been. On this case you need new or used radar unit and connector.

 

Thank you. No connector, will crawl under today and see if unit still there. The wires have been torn off something.

 

You were bang on. The radar unit is missing!

 

Sorry to hear that. You need to hunt used unit or put hand deep in your pocket and go to dealer.