2013 CHEVY SONIC LOUD VIBRATION NOISE FROM ENGINE BAY AREA WHEN VEHICLE IS PARKED OR IN THE DRIVE POSITION WHEN STOPPED, IT ALSO OCCURS WITH OR WITHOUT A HEAVY LOAD (MEANING RADIO ON/OFF, AC ON/OFF). AS A CONSUMER I WAS TOLD THIS IS NORMAL OPERATION, NORMAL OPERATION WOULD MEAN EITHER AT THE TIME OF PURCHASE OR SOMETHING THAT ARISES AFTER HIGH MILEAGE ON THE AUTO. PER TECH NOTES "CASE [XXX], ADVISED A NORMAL OPERATING CHARACTERISTIC OF 4 CYLINDER ENGINE. COMPARED TO SIMILAR VEHICLE MADE THE SAME SOUND. WAS ABLE TO DEADEN NOISE BY APPLYING PRESSURE TO FRONT BUMPER.*** - TECH COMMENTS: NORMAL OPERATING CHARACTERISTIC - INTERNAL" INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR