The only remaining warranty on a 2013 Leaf is the battery defect warranty. This applies to bad cells only, not to capacity loss. The defective cell(s) have to be bad enough to trigger error codes.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.