Nissan
Leaf

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.