Thanks drees & RegGuheert.
I've also been letting it go since our caliper tweak didn't fix the sound. Like you both, our 5yr warranty is not too far off & the LEAF's clicking seems more frequent, so I thought better to get it checked. Before I bring it in, I'm also going to listen for any clicking during turning too. Maybe it could be when I turn the steering wheel too hard/fast during parking that I hear a sound. That way any issues can be addressed on one visit. Lol, yup, I also like to do some homework, esp. on this forum (thanks again) before approaching the dealership for services