Our 2014 Leaf S (68k miles) often, but not always, has a groan or grunt near the rear, possibly right rear. It happens at lower speed say 0-15 mph or so. It is not a metallic sound but sounds more like rubbing like a dry bushing. Lastly, it seems worse when cold outside. If it continues and I can pinpoint it better, I will look at calipers, pads, rotors and wheel bearings. But is there a likely culprit inherent to the LEAF design/build, might a good place to start. Thanks!
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