This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.
So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.
Brake warning sign came off and the car won't shift out of parking brake, causing the passenger to get stranded. Upon dealer inspection, there's defective wire hardness which has been noted in Nissan service bulletin Ref: NTB19-054a. Dealer confirmed that it is bulk wire harness issue and will require replacement (~$3.2K for part and labor). i have reported to Nissan since the leaf has 22k mileage only, but rejected by Nissan that it is a manufacturer issues. Please investigate this as i have seen many similar issues with other Leaf owners and it will be un-safe to have parking brake issue suddenly pops up, where it will brick and unable to move the vehicle. Thank you.
On 9/17, 2019 Nissan Leaf S 40 kWh lost braking power just after start up. I started the vehicle, placed the vehicle into drive and went to creep through open parking spot. The brake pedal was either dead or lost enough power to feel dead. The vehicle was returned to park in order to stop slow roll. No injuries or damages. Experience seems similar to NHTSA ID 11488058. I don-??t recall whether any warning lights came on as I rushed to power down the car. No indicator lights illuminated after restart and vehicle drove home without issue. A few hours prior to brake issue, a humming/ringing sound was heard throughout the cabin just after shutdown. My passengers also observed the sound, which stopped after powering on the vehicle and turning the fan dial. This had not happened before and only occurred once. On 09/18, the vehicle indicated -??Warning: Service EV System No Power-??. Numerous warning lights were illuminated, a photo taken, and a tow truck scheduled. Two hours later, I went to check whether the vehicle could be placed into neutral. The vehicle started and went into gear without issue and no warning lights illuminated. The vehicle was towed to the dealership for inspection as precaution. My 12V battery was the original battery, so I suspected it needed replacement and asked the dealership to test it. I have read online about other issues from Nissan Leaf owners when the 12V battery is deteriorated. Dealership confirmed 12V battery failed testing. They were not able to duplicate the brake issue described above. The only time that the vehicle provided a warning about the 12V battery was when it generated the warning described above once. Otherwise, no indication that battery needed replacement. Nissan needs to provide a system update to give the driver more specific 12V battery health information. Also address the 12V battery more clearly in maintenance schedule. Vehicle operating as expected with a new 12V battery installed.
Read the comment, "Vehicle doesn't slow down when taking foot of the acceleration pedal. Same both power settings. It will continue to move at slow speed on level ground. It behaves as though the minimum pedal motor speed is too fast. My concern is that it might get very fast without any pedal. Thank you." I can confirm the same issue has occurred with my 2019 Nissan Leaf. The car is seriously dangerous if you are not aware of this issue that occurs and that the only response is to forcefully hit the brakes...times this occurs: occasionally including merging onto highways at fast speeds and at low speeds as well. Problem is ongoing at least weekly since I bought the car 3/22. Serious injuries and deaths are likely to occur if this problem is not resolved. I would be surprised if injuries have not already occurred. I didn't know where to go to report this until I read an article with the above quotation. Here I am. Thank you.
A warning light came on with a circle and exclamation mark and when I starting to back up my brake pedal was not stopping the car it kept on going it was very scary, then another warning light came on with a picture of a car and exclamation. Sign and everything stopped working the car will not moved, took the car to the dealer and they said the 12 volt battery was defective
The electronic parking brake does not automatically engage, even when the circumstances described in the owner's manual apply. This could cause some cars to be improperly secured, if drivers expect the parking brake to apply automatically but it does not. I don't think this is an issue with my car specifically as many others on the Internet have reported similar issues. See for example https://www.reddit.com/r/leaf/comments/oxzrne/how_does_the_electric_parking_brake_work/ This problem seems to be pervasive enough that many owners concluded their car simply does not have this feature, despite it being clearly described in the owner manual.
- Aliso Viejo, CA, USA
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The Incident happened on a bright afternoon while I was entering our two car parking garage in our home ; steering wheel steered to the utmost right to enter the right parking space in our garage. I was driving an almost dead battery (8% charge remaining and 13 miles left) and the 2019 model Nissan Leaf car (20K miles driven) was already very heavy while entering our alley (backyard parking). I was driving at 10 mile speed or under when our fence door was in the process of opening (half way opened) and the car garage was already opened; the car jerked forward with a sudden speed, dashed through the fence door and did not stop on drive way (brakes failed) and entered into the garage, hitting the storage racks built to the wall and the toilet right behind it. Things fell on the windshield, obstructed the car when it finally stopped (had to hit the stop button by force). I was scared to death if the car was going to get on a fire or would result in an electric short circuit. Luckily I was saved with no major injuries and God was beside me and saved me from causing any damage to anyone or other's properties. I am sure there might have been other such complaints on Nissan Leaf and want to bring this to light.
I was driving down the freeway going roughly 70mph with pro Pilot cruise control enabled. The car sensed a car ahead and slammed on the brakes, but there were no cars in front of me and was almost rear ended by a car going 70+ mph on I5.
It seems to me that the E-pedal has not been designed correctly for the heavier weight of the 62kw battery. This is especially true for those of us that have a previous year 42 kw battery model. I purchased the 2019 Nissan Leaf plus sl trim and traded in my 2018 Nissan Leaf sl on 2/8/2020. I noticed the braking distance with E-pedal has increased dramatically, by about 2X this distance. That seems to be out of line and should be corrected.
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- Cupertino, CA, USA