I bought my used 2016 Leaf SV in June 2018 from a Nissan dealer that is 220 miles from my house. I received an email from the dealer that I can bring the Leaf in to have the following work performed: (1) Maintenance Services: Perform 1st Free Maintenance Service; and (2) Recall Services: Mfr Campaign/Safety Recall NoticeC630 -ManufacturerCampaignIdC630 30 KW BATTERY. Is this worth doing? I also have a local Nissan dealer that is about 15 miles from my house. The Leaf has about 12,000 miles and has no apparent problems that I am aware of. When I brought the Leaf home from the dealer,I charged twice enroute using CHAdeMO chargers. Otherwise, I have just charged using 110 V in my garage. Thanks.