2015 NISSAN LEAF Complaints

I was driving my vehicle and the brakes suddenly stopped working. Upon failure, the ABS warning light as well as the braking system warning lights came on. I had to use my emergency brake to stop the vehicle. I had my vehicle towed to Nissan. The Nissan dealership mechanic said it was a Master Cylinder Brake Controller malfunction. It is currently at the dealership and available for inspection. The cost to repair the brake system exceeds the value of the car. This put my safety at risk because I could not safely stop my vehicle. I was minutes away from merging onto the freeway. Had I been traveling at high speeds without any braking system, my life and others would have been at risk.

Driving normally when the brake light, abs light, and traction control light came on.Brakes were unresponsiveness unless brake pedal was fully depressed causing a the ABS brakes to engage. This caused difficulty stopping and was required to use parking brake to slow down. Restarted vehicle several times but problem persisted. Nissan dealership stated that the intelligent braking system needed to be replaced as that is what their computer stated as all the codes indicated that the module was defective. Codes and diagnostic report attached.

Unintended Acceleration: Vehicle continue to accelerate even after the gas pedal is released or not slow down as expected.

The intelligent braking system control unit failed. The car is available for inspection, it is at the dealership for repair. I was driving downhill, towards a busy intersection and without any warning, there was no braking when I pushed the brake pedal. It was my two young children and myself in the car, we drove straight through a crosswalk (luckily empty), and towards a very busy intersection (luckily slightly uphill so we were able to stop in time). I cannot imagine what could have happened if losing our brakes would have happened any other time. We could have easily been injured or killed, as well as someone else. The problem has been confirmed by the dealer. The vehicle has been inspected by the local dealer and service center, same one the vehicle was purchased from. No warnings, messages, or other symptoms whatsoever. Afterwards, the ABS warning lights did come on.

The contact owns a 2015 Nissan Leaf. While in the driveway of the residence, the contact started the vehicle with his foot on the brake pedal; however, the vehicle rolled. The contact depressed the brake pedal to the floor, but the vehicle continued rolling until it struck a rock wall. The failure occurred without warning. There were several unknown warning lights illuminated. There were no injuries sustained. There was no Police report filed. The vehicle was taken to an independent mechanic where the vehicle was diagnosed with an electrical failure, and that the brake booster had failed. The vehicle was not repaired due to a dealer not being in the area where the contact resides. The contact referenced NHTSA Campaign Number: 16V119000 (Service Brakes) as a possible solution however, the VIN was not included in the recall. The manufacturer was notified of the failure. The failure mileage was approximately 34,000.

Brakes did not engage when depressing the brake pedal. No warning lights in the dash. Car was used a few hours prior with no issues. No other warnings of the failure occurred before or during my attempt to brake, aside from the lack of braking action. Occurred at a stop sign cross traffic, I turned into oncoming traffic, cutting off the other car but avoiding a collision. I confirmed the brakes did not work at the subsequent stop light, used parking brakes to stop at the side of the road. Minimal braking action seem to be present when I fully depress the brake pedal. Brakes worked normally the next day. Dealer service center states the intelligent brake control unit needs to be replaced for $5000, which is around the current value of the vehicle.

Brake pedal goes to the floor with no braking power. Grinding sounds, then finally brakes engage, but feels like the emergency brake. Super dangeraous, happened on the freeway. Checked 12v battery, based on what I read on line, battery had and still has strong charge. Next day, brakes work just fine. No problems. Happened again on highway a few days later, again, no braking power until just at the end, cant drive the car at any speed now, battery still fine. No cold weather here (unlike the many other 2015 leaf owners reporting the same issue. All dash warning lamps come on. Again, car drives fine the next day. Nissan denies any recall being needed, despite the hundreds of reports of similar dangerous problems.

Warning lights, abs light and brake light illuminated out of nowhere. Unable to brake. Used a lot of force to get the car to slow down. Dealership inspected and said module short circuited.

What component or system failed or malfunctioned, and is it available for inspection upon request? The electronic braking system seems to have randomly failed due to some electrical glitch. Mechanically the braking system works fine but during this incident the ABS system kicked in causing the car to shutter and the brake petal went to the floor with 0 braking power. Was forced to put the car in Park and apply the emergency brake in the middle of the road in traffic to ensure it would stop. Cycled the car on and off multiple times to see if that would help reset the car but the problem persisted. How was your safety or the safety of others put at risk? Putting other drivers on the road at risk if we were not able to stop the car could have caused property damage and personal injury to others on the road and my family who was in the car. Has the problem been reproduced or confirmed by a dealer or independent service center? The problem has been reproduced 3 times but the last time being more severe and power cycling the car didn’t correct the issue like the prior two incidents. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? The vehicle is going to be inspected by myself and possibly the manufacturers dealership depending on my findings. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? There was no prior warning all warnings come inline with the brake failure.

When vehicle is cold, I start driving and the first time I try to brake the brake light comes on, an orange triangle with expalnation mark comes on and the brake pedal pushes to the floor without providing braking power. One time, I was on a hill and the car started rolling backward even though the brake was pushed fully to the floor. I had to turn off the car and turn it back on to reset? the problem. I had to do this twice yesterday. The problem is happening more often over the past 1week.