I have a 2019 Honda HRV. I recently started noticing a grinding sound when going uphill. I notice the sound comes and goes with "tension" or "strain", as in going uphill. I have not noticed it at level ground or going downhill. I notice the sound starts at the 35 mph mark, 1500 rpm, and if I am continuing uphill, it will come again at 40mph and again at 45mph. I just took my sales rep for a drive and had him listen for it. If you have music on or the windows rolled down, you won't be able to hear it. It only lasts for about a second, but it is a grinding/rattling sound. I am just trying to see if anyone else has had this issue and if so, was it ever pinpointed. Thank you.