electronic beeping noise coming from the undercarriage on 2005 Volkswagen Passat

For the past several days I've noticed my passat wagon makes an electronic sounding beeping noise after it has been driven. It cannot be heard from inside the car, only from the outside. It sounds as if it is coming from near the rear tire. Any ideas??

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1 answer 1 comment
Hello, did you locate the source of this beeping noise?
does anyone know what the problem is ? my car is doing the same thing.