Took mine in with 8 bars today (dropped at 43.50Ahr, 40,600 miles) and left in a loaner with no warranty paperwork ... this dealer hadn't done a warranty replacement before, and was making noise about back & forth with Nissan on information about the battery, mused about replacing individual cells, etc.
Has anyone who obtained a warranty replacement had any issue with Nissan approving it (barring the crazy class action opt-out debacle), or received anything less than a new full-capacity pack with warranty service?