Tl* the contact owns a 2015 audi a4. approximately one week after the vehicle had been serviced for nhtsa campaign number: 17v002000 (engine and engine cooling), a failure occurred. while the contact was parking the vehicle at 1 mph, the backup sensor failed and the backup warning system failed to alert the contact of any objects behind the vehicle. the vehicle was taken to audi of huntington (363 e jericho turnpike, huntington station, ny 11746) where it was diagnosed that the sensor wire had been cut. the vehicle was not repaired. the vehicle was taken to an independent mechanic who stated that the two wires were not connected and that the wires seemed "fragile". the vehicle was not repaired. the manufacturer was made aware of the failure and stated that they believed the dealer's statement about the wire being cut. the approximate failure mileage was 24,000. updated 10/17/17*lj *tr