Hello All from Québec Canada!!
I'm glad we found this post. As of today, we are several 2014-2015 Leaf owners in Québec which has recently reported some momentarily braking system failure (as you described) which seems to occur mostly in cold temperature, (below -20c). One of the Leaf owner that had the problem was able to take a video while it happenned to share it with the others. I know it's in french, but listen until the end, you will see and hear what the problem looks like. Apparently the brake pedal has to be pushed at more than 50% of it course before you can finally feel the car slowing down. After you hear some "Toc" Toc", only then it will start to brake but lightly. So far, we are aware that at least 5 Leaf owners from Québec had this problem and they reported it to Nissan Canada. We are still all waiting and very, very anxious to hear from them. Of course no dealer was able to find the problem, saying it could be just a bad relay contact in this cold weather (!!!!!!!) This braking problem can be potentially VERY dangerous and I hope Nissan will react very quickly before anything bad happens. Again, this seems to be happening only to 2014-2015 Leaf owners. I hope you will be able to see the video with this link.https://www.dropbox.com/s/0rpjac5zo0yz5 ... 254730-996