2015 Nissan Leaf

The electrically-driven intelligent brake unit failed on my 2015 Nissan Leaf. The brakes became inoperative: when pressing the brake pedal there is a loud compression/grinding noise and the pedal goes nearly to the floor with little braking force. The failure appeared suddenly after charging the vehicle; it had been working normally before. The vehicle had to be towed to a Nissan dealership. The dealer diagnosed codes U1000 and U110D stored in the ABS module for lost communication with the intelligent brake module, performed an inspection, and confirmed the intelligent brake unit failed. The dealer quoted $5,131.10 to replace the unit, which approaches the value of the vehicle. This is the same electrically-driven intelligent brake system that was the subject of safety recall 16V119000; the NHTSA VIN lookup shows zero unrepaired recalls for this vehicle, indicating the recall remedy was previously completed, yet the unit failed catastrophically anyway. This failure mode is widely reported by other Leaf owners. Loss of braking without warning is a serious safety risk. The vehicle and failed component are available for inspection at the dealership.

The contact owns a 2015 Nissan Leaf. The contact stated that while reversing at an undisclosed speed, the brakes failed to engage while the brake pedal was depressed. The brake and master warning lights were illuminated. The failure had occurred on several occasions; however, the contact stated that the vehicle recently failed to return to normal operation. The vehicle was taken to a dealer where it was diagnosed that the brake module booster needed to be replaced. The vehicle was not repaired. The contact researched and was made aware of NHTSA Campaign Number: 16V119000 (Service Brakes); however, the VIN was not included in the recall. The manufacturer was notified of the failure. The failure mileage was unknown.

The car was parked in a parking lot, and when we turned it on and pulled out of the space, the brake light, ABS light, and other warning lights came on and the brakes went soft. We pulled back into the space and tried again, thinking it was a fluke and heard a strange noise coming from the car when it started. Again the lights came on and the brakes did not work. We had it towed to our normal mechanic and then to the dealership when the mechanic was unable to figure out what was wrong. The brakes looked to be in good repair. The Nissan dealership was unable to reproduce the problem and found only old codes in the system. The codes listed on the receipt were FFD high key cycle counts, C118A, U1000 (ABS, EV/HEV), P3195, B29C1 However, after I saw similar complaints related to the battery in this car and told them about it, they found that the 12V battery was leaking. They replaced the battery and flushed the brake line to be safe, but did not charge us the diagnostic fee since they were unsure if they fully fixed the issue. I had recently felt like the brakes took more pressure than normal (all the way to the floor) to stop on the highway once recently and so did my husband but we both thought we were imagining things. 2 years ago we had a similar issue happen but the mechanic just sent us back home after not being able to find anything. The codes on the receipt from 2024 are not very legible but I think they say "41000Gn Comm Circuit" "C118A EAS System" and "41100 Electronic Back Return."

Visor on driver side fall down on face causing blockage. Paint is pealing off of vehicle.

This is the third time my brakes have failed while driving, which seems to have something to do with the 12-volt battery. At least at first, I disconnected my 12-volt battery and reconnected it; this fixed the issue, at least for a while. The other day, I was driving down a road near my house and the brakes failed right before I came around a bend. I had to quickly press the e-brake to slow down, or I would have run right off the road. This is definitely a dangerous issue. Please issue a recall for this because I've noticed many other people complaining about the same issue—the same sound, feeling, and symptoms. It appears the brakes are malfunctioning due to a communication error, or a low voltage issue to the brake computer systems?

Was driving the car in a neighborhood setting only going 20 mph, ABS light turned on the dashboard, traction control light or some other light regarding traction came on as well, brakes failed. Had to use parking brake to stop the vehicle.

While driving normally, yellow brake warning lights came on but I arrived home without incident. Next time I drove, the warning lights were all off, but suddenly the brakes failed almost completely. I pushed the pedal to the floor and heard a grinding/clicking sound, and barely any stopping power. I was only going 25 mph, and was able to stop after 5 seconds of high foot pressure. At the same time, red brake warning light came on. I was able to get the car home very slowly, and strangely I had adequate braking power for the remainder of the short trip (although red and yellow brake warning lights remain on). I am happy to provide the car for inspection. This was extremely dangerous to the nearby pedestrians because I could not have stopped the vehicle had one been crossing in front of me. Had this happened at highway speeds, my passenger and I would have been in great danger, as would have other vehicles.

My Intelligent Brake Unit failed. I was slowing down at a major intersection to stop. The ABS system activated and the brakes did not respond appropriately. The pedal went soft. Multiple lights on the dashboard lit up. My two year old child was in the vehicle with me, and we are still recovering from this traumatic experience. I considered the car disabled and had it towed to a mechanic. I then brought it to a Nissan dealership who identified that the entire intelligent brake unit needs replacing for $5,500, which is more than half of what I paid for the vehicle.

My 2015 Nissan Leaf is suffering from advanced battery degradation. The car would only charge to 55 miles per charge. The car also has only 85,000 miles only. Nissan refused to address or fix the issue as the car was past the 7 year warranty (even though the book says 8 year warranty). Battery should still go to 150 miles per charge. Dealership claimed degradation from charging at super chargers. Car has only ever been charge at home as it is only driven 2 - 3,000 miles per year. Car stopped in the middle of the highway. Police had to come move to the side of the road. No one was injured although many could have been.

I was driving about 30mph and suddenly out of nowhere my brakes went out. They went out for about 1 second and some lights went out - then I slammed on the brakes, skidded to a halt and stopped in the. middle of the road, nearly crashing. We took it to the garage and they ran two codes and told us to take it to the dealer. The dealer quoted us about $8,000 and said it needed to "replace electrically driven brake control unit AND e-harness (engine room harness) (240123nh1d)". This makes the car dangerous to drive due to failures beyond our control or regular maintenance. This is a car failure and should be covered by a recall. It is simply not safe to drive. Looking online, this has happened to other Nissan Leafs of the same year/model as well.

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.