As i said, my two other cars don't do it on the same bumps and humps. And it only started about 1,000 miles ago.
Will bring it to dealer at 12,000 mile check.
Definitely only the front wheels. Only when 3 or more people in car, not going excessively fast, maybe 5 mph. Happens at different size speed bumps. My other cars have never made a noise like this even going much faster.
At about 7,000 miles my Leaf has started a loud creaking/groaning sound going over small speed bumps. The more people in the car, the more severe and louder. Other than than that car has been perfect. I guess a trip to dealer is required.