I HAVE A 2013 HONDA PILOT, LESS THAN 1 MONTH SINCE PURCHASE. AT SPEEDS FROM 20 MPH TO 70 MPH MY ENGINE AND CAR WILL, VIBRATE, SHUDDER. THERE IS ALSO A LOW FREQUENCY NOISE THAT SEEMS TO VIBRATE IN MY EAR WHICH IS ALSO QUITE A DISTRACTION. IT SEEMS TO HAPPEN MOST WHEN I AM ON A FLAT OR SLIGHT INCLINE. THE ONLY WAY TO GET IT TO STOP IS TO EITHER SPEED UP OR LET OFF THE GAS. THIS IS VERY DISTRACTING WHILE DRIVING AT HIGHWAY SPEEDS, AND VERY FRUSTRATING SINCE IT IS A NEW VEHICLE. I HAVE TAKEN IT BACK TO THE HONDA DEALERSHIP AND THEY SAID THAT THEY FEEL THE PROBLEM, BUT THEY SAID THAT AMERICAN HONDA STATES THAT THIS IS NORMAL FOR THIS VEHICLE. I DO NOT UNDERSTAND HOW THIS COULD BE NORMAL. A ROUGH FEELING, VIBRATING CABIN AND SHUDDERING ENGINE IS NOT A NORMAL OPERATING CAR. IT FEELS LIKE SOMETHING WILL BREAK OR COME LOOSE, WHICH MAKES ME VERY NERVOUS AS MY CHILDREN COMMUTE WITH ME EVERY DAY. *TR