NHTSA Complaint #10357429 — 2007 HONDA ACCORD

READ THIS THROUGH AND ACCEPT IT AS ACCURATE. I AM SANE, INTELLIGENT, A FORMER CPA. THE PROBLEM IS UNUSUAL, BUT I WAS THERE; YOU WEREN'T. 2007 HONDA ACCORD. WHEN STOPPED FOR A TRAFFIC SIGNAL, CAR BEGAN TO VIBRATE AND SHAKE VIOLENTLY TO A BOOMING BASE NOISE. THE LEVEL OF SOUND: LOUDER THAN STANDING BY THE SPEAKERS AT A ROCK CONCERT. THE VOLUME HURT MY EARS; IT WAS EASILY LOUD ENOUGH TO CAUSE HEARING DAMAGE FOR A PROLONGED EXPOSURE. I'VE WORKED IN A MACHINE SHOP, AND I KNOW LOUD. (I ASSUMED SOMEONE WITH A MEGA STEREO AND SUB-WOOFER PULLED UP ALONGSIDE ME. MY RADIO WAS OFF, AND I HAVE A STOCK SYSTEM, NOT CAPABLE OF THIS MAGNITUDE OF SOUND.) WHEN I TURNED AT THE LIGHT, MY VEHICLE WAS THE ONLY ONE THERE, AND I REALIZED THE SOUND WAS COMING FROM MY CAR. THE SOUND WAS DEFINITIVELY FROM SPEAKERS AND AN AMPLIFIED SOUND, NOT A NORMAL ENGINE OR EXHAUST SOUND. I REVVED THE ENGINE, AND THE SOUND DID NOT CHANGE. THE SOUND DECREASED SLIGHTLY AS I DROVE, AND THEN RESUMED ITS FORMER LEVEL. I PULLED INTO A GAS STATION, SHUT THE ENGINE OFF, AND LOOKED UNDER THE HOOD AND BODY. I SAW NOTHING. ON THE WAY HOME, I STOPPED BY A HONDA DEALER, AND THEY SAID THEY HAD NEVER HEARD OF SUCH A THING. THE SERVICE ADVISOR MENTIONED IT MIGHT HAVE BEEN THE ANC, OR ELECTRONIC NOISE CANCELLATION, WHICH IS USED TO PRODUCE OPPOSITE SOUND WAVES TO CANCEL OUT ENGINE AND ROAD NOISE, CREATING A QUIET CAB ENVIRONMENT. I ASKED IF THE SYSTEM HAD THE POWER TO SHAKE THE CAR, AND SHE RESPONDED YES. I WAS STOPPED AT A LIGHT, SO THE ONLY DANGER WAS TO MY HEARING. IF THIS HAPPENS TO SOMEONE IN TRAFFIC, THE RESULTS COULD BE DANGEROUS. THE ONSLAUGHT OF NOISE AND SHAKING WAS JARRING. THIS WOULD APPEAR TO BE AN ELECTRONIC GLITCH, AND THEREFORE VERY HARD TO DIAGNOSE. I AM PUTTING THIS ON RECORD SO THAT ANYONE ELSE EXPERIENCING IT HAS SUPPORTING INCIDENTS. *TR