One problem related to air bag has been reported for the 2014 Nissan Leaf. The most recently reported issues are listed below.
When my 90lb daughter and 130lb wife sits in the passenger seat of our my14 Nissan Leaf, there is no consistency with whether the airbag will be on or off. Often, the airbag is on with my daughter and off with my wife. The dealer has "reset" the airbag four times and says "it's working as expected". I've spoken with Nissan electric consumer affairs and they said there's nothing they can do and they refused to let me talk to their supervisor.