Brake Grinding Noise Problems of Nissan Leaf

I drove my vehicle to my children's daycare a few miles from my home, parked, and turned off the car. When I went to start the car to leave, I heard a strange buzzing type sound at startup, and then got a bunch of warning lights for the brakes and traction control. I turned the vehicle off and on a few times to try to get the warnings to clear. I noticed the buzzing sound was coming from when I pressed the brake pedal. I tried to get the vehicle to go into neutral but it wouldn�t. Then I tried putting it in drive, and it did go into drive, but started drifting backwards because I was parked on a slope. This is the scary part that could have injured someone. I was in a daycare parking lot and someone could have walked behind my car at the time it drifted back. Thankfully that did not happen. I mashed on the brake to stop the car, and it did stop but required more brake travel and made some grinding noises, like the abs was operating. After I realized I had a major problem, I searched the internet and found some people on forums with similar issues. I tried disconnecting the 12v battery for a few minutes, a couple of times, but couldn't get the brake alarms to go away. So I got it towed to my dealer. Dealer was busy and didn't get to look at the car for two-three days. They said that when they turned on the car they didn't see anything wrong. I asked them if they saw any codes, and they checked and they found codes for the can communication and intelligent brake system. The service advisor called this a "fluke" and said that the car was safe to drive. However, I am reading that there are many reports of the same problem with this model year Leaf. I do not feel safe driving this car, especially not with my children in it. What if the "fluke" comes back while I am driving down the road and can't safely stop in time?.

See all problems of the 2015 Nissan Leaf 🔎.

Brakes failed upon starting the car. Multiple warning lights on the dashboard (brake, abs, traction control, and brake system) resulting in total brake failure - cannot stop the car with normal braking even while just putting the car into drive/reverse from park. Started happening ~3 weeks ago. The only thing that stops the car is the emergency / parking brake. If pressing the brake pedal all the way, just before hitting the floor there is a loud popping / grinding noise and the parking brake (?) engages. The first time, turning the car off/on fixed it. We took it to our local Nissan dealer, they said "could not find the issue in their system" and said it was a "fluke" and wouldn't happen again. Happened again a few days later and turning the car off/on didn't help, and the car was stuck in our driveway. Tried replacing the 12v battery, which fixed the issue temporarily. Happened again a few days after that and had to get it towed back to Nissan. * they found the issue in their system and think it's the "driven intelligent brake unit" and costs $2600+ to fix. They also say the "main engine harness" may need to be replaced for some reason as well, costing another $2400+. Have contacted Nissan USA, they told me they don't have a record of this being a problem with Leafs (even though there are dozens of complaints on here) and refuses to provide assistance. This brake system is *extremely unsafe* for the driver & passengers, and everyone around it. My kids could have been near the car when it started moving on its own even though I was pushing the brake pedal. No one needs to die or get gravely injured because of this faulty system.