2004 BMW X5 6 cyl Four Wheel Drive Automatic 40000 miles
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My PDC device started to malfunction. When I select reverse, PDC produces long steady signal tone sound. The only way to get rid off the sound is by pressing the PDC button located on the front panel. The nearest BMW service center is located approximately 700 miles away. NEED your help. Is there a way to re-set it somehow. Thank you in advance.

The way to fix it is to isolate which of the sensors is faulty. Removing the faulty sensor from the circuit should stop the malfunction.