Unclassified problem on the 2012 Nissan Leaf
Only 6 reports for this mode came with an odometer reading, which is too few for percentiles to mean anything. The page is here because someone linked to it; treat the figures as anecdotes, and see the full report for this year instead.
When unclassified problem gets reported
There are 13 reports of unclassified problem on the 2012 Nissan Leaf, 6 with a mileage attached. That is too few to place the failure on the odometer with any confidence.
It is the 19th most-reported problem on this model year.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| — | — | 26,985 miles | — | — |
Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.
What a percentile can and cannot tell you here
These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.
What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.
Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.
The same failure on other years
The same failure is reported on 10 model years of this car. It shows up earliest on the 2018, at a median of 5,000 miles, and latest on the 2011 at 55,000 miles.
By volume the 2019 carries the most reports, with 32; the 2012 has 13. A mode that appears across most years of a model is usually a design choice rather than a bad batch.
If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.
Page 1-21 of the 2012 nissan leaf owner manual has an illustration of a forward-facing convertible child restraint incorrectly installed, with the caption "latch webbing-mounted attachment". The illustration shows the forward-facing convertible child restraint installed with the lower anchorage flexible connector strap (latch webbing) routed through the rear-facing child restraint belt path. No webbing is routed through the forward-facing child restraint belt path. This illustration may suggest to users that this is how to route the "latch webbing" in a forward-facing child restraint illustration, which may lead to injury. This illustration is common to many models of 2003 and later nissan vehicles, not just the leaf. *tr
Despite an adult occupying the front passenger seat, the passenger airbag disabled indicator came on. This happened with two different full sized adults. Dealer could not recreate the problem and refused to attempt a repair. *tr
Tl* the contact owns a 2012 nissan leaf. While starting the vehicle in a parking lot, the air bag indicator illuminated and continued to flash. The vehicle was taken to a dealer where it was diagnosed and the computer system was reset. The technician also diagnosed that the side air bag sensor and cushion needed to be replaced. The failure recurred two days later. The failure was not remedied. The manufacturer was not made aware of the failure. The failure mileage was 14,470.
Also reported on the 2012 Nissan Leaf
Other brake problem
Other electrical problem
Other body or interior problem
Other speed control problem
Other visibility problem
Airbag warning light or occupant sensor fault
How far this goes
This page is kept out of search results because 13 reports is not enough to publish percentiles from. It stays reachable because somebody looking at this exact car would rather see the reports than be told there are none.
Complaints are voluntary, so 13 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.
Questions this page answers
At what mileage does unclassified problem happen on the 2012 Nissan Leaf?
Across 6 owner reports that included an odometer reading, half were filed by 25,000 miles. A quarter were filed before — and a quarter after —. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is unclassified problem on the 2012 Nissan Leaf?
13 reports have been filed with NHTSA, about 0.6 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.
What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed