Unclassified problem on the 2002 Toyota Corolla
9 crashes 7 injuries 16 of the 16 reports for this failure mention a crash, a fire, an injury or a death. Those are the owner's words on the complaint form, not a verified finding, and one report can mention more than one.
Only 2 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 16 reports of unclassified problem on the 2002 Toyota Corolla, 2 with a mileage attached. That is too few to place the failure on the odometer with any confidence.
It is the 35th most-reported problem on this model year.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| — | — | 103,526 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.
What happens, and what it costs
Of these reports, 9 a crash and 7 an injury are mentioned. Owners write their own complaints and the agency does not verify them, so read this as what the reports say happened rather than as a confirmed count.
The same failure on other years
The same failure is reported on 27 model years of this car. It shows up earliest on the 2020, at a median of 5,000 miles, and latest on the 2000 at 170,000 miles.
By volume the 2005 carries the most reports, with 276; the 2002 has 16. 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.
I purchased this vehicle used from a dealer on october 17, 2007. After purchasing the car I noticed that sometimes when I pull out the seal belt, it locks and can not be pulled out any further. The belt can only be pulled out further only after a drive and start to apply the brakes. After an argument with the salesman the manager agreed to replace the front seat belts. A day later, I watched the mechanic install the pair of seat belts that came from the dealer in sealed boxes. After installation the problem is still there. Management told me I was lucky they replaced the seat belts because used cars are all sold "as in". They refused to do any further repairs. Toyota dealership says that I would have to pay a diagnostic to find out what the problem is and then pay for repairs. A gentleman from toyota's parts department tried to buckle himself in and had the belt locked as he was pulling the belt out. He tried again slowly but same results. He claims he never experienced anything like this and don't know what could be wrong. Can anyone help me?
Tl* the contact owns a 2002 toyota corolla. The contact stated that another vehicle crashed into the passenger side of his vehicle and the air bags failed to deploy. The contact mentioned that the air bag warning lamp illuminated. A police report was filed and no injuries were reported. The vehicle was taken to the dealer. The technician was unable to diagnose the failure. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure mileage was 140,000 and the current mileage was 165,000. *tr
Also reported on the 2002 Toyota Corolla
Other body or interior problem
Other engine problem
Other wheel or tire problem
Airbag failed to deploy in a crash
Other speed control problem
Seat belt or retractor failure
How far this goes
This page is kept out of search results because 16 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 16 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 2002 Toyota Corolla?
Across 2 owner reports that included an odometer reading, half were filed by 105,000 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 2002 Toyota Corolla?
16 reports have been filed with NHTSA, about 27 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