We have known for some time that AZE0-1 (2014-2015 Model Year) Leafs have a design flaw with their Electric Driven Intelligent Brake (EDIB) system which in a small but significant number of cases had lead to the electronic system temporarily becoming completely unresponsive.  In this situation there is no braking force whatsoever within the first 3/4 of the brake pedal travel which of course can be highly frightening and dangerous as the driver may not instinctively know in this situation to press the pedal further all the way to the floor.  Nissan has released several firmware updates for this braking system in the years since its production, yet there has never been any acknowledgement of there being a problem.  Unfortunately, after years of monitoring and analysis of a large number of cases, we don’t have confidence that any of Nissan’s firmware updates have fixed the issue. However, the latest update does seem to result in improved brake feel and performance so we do still consider this as a worthwhile upgrade to be offered alongside normal servicing (aka brake fluid check/change which is probably the single most important service item on these cars).  We continue to spend time and effort on getting to the bottom of this issue and hope to be able to offer a highly cost-effective repair, but we are not there yet.  Surprisingly, in 2020 Nissan released a brand new replacement EDIB variant for the AZE0-1 Leaf and we do have a high level of confidence that these new units resolve the issues associated with the original part.  We are now stocking these replacement brake units for a fraction of the price of getting one through Nissan NZ.  it is a replacement for the following superseded and discontinued original parts: 46007-3NG5A, 46007-3NG8A, 46007-3NG9A