2013 Honda Pilot EX-L w/Rear Entertainment 4dr SUV (3.5L 6cyl 5A)
When in ECO mode and you encounter a slight grade where there is a light loading on the engine, it vibrates and makes a droning noise.
It does it anywhere from 35mph and up including highway speeds.
It did not do it on my Odyssey in ECO mode.
The shop mechanic first said it was "Normal".
I have had 20+ cars in the last 50 years and this isn't normal.
Then he said this was very typical of the 2013 Pilots.
Honda mad a design change in 2013 and don't apparently don't have a clue how to fix it!
I have had the same issue with my 2013 EX-L Pilot since the first week of purchase!
The dealer told me it was normal and that I must be over sensitive to vibration & sound.
It feels like a "hesitation" or "stutter" and is NOT normal!
I love everything else about my Pilot, but am sad to say I'm currently looking to trade it due to this issue.