Unclassified problem on the 2018 Honda Accord
3 crashes 4 injuries 7 of the 188 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 63 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
Owners of the 2018 Honda Accord report unclassified problem at a median of 12,500 miles. A quarter of the reports come in before 5,000 miles and a quarter after 25,000 miles, from 63 reports that carried an odometer reading.
It is the 94th most-reported problem on this model year.
The mileage distribution
The reported range runs from 200 miles at the tenth percentile to 35,000 miles at the ninetieth, a spread of 34,224 miles across the middle 80% of reports.
Reports bunched into a band this tight usually mean the component has a life of its own: it goes at roughly the same mileage regardless of who owns it.
92% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 200 miles | 4,000 miles | 11,352 miles | 24,924 miles | 34,424 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, 3 a crash and 4 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 2025 at 170,000 miles.
By volume the 2008 carries the most reports, with 231; the 2018 has 188. 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.
The car stutters or stammers when you press the accelerator/gas pedal at times, it does not do it at all times. It is dangerous. It was stationary at a stop light, or pullling off from a stopped position.
I purchased a 2018 honda accord touring in october 2017 and since that time my low tire pressure light has come on around 8 times. It comes on while I'm driving and usally when I'm taking a trip but not alwasys; sometimes it is city driving. Each time I'm told to bring my car in for service. After several days it comes on again. I'm currently working with honda coporation trying to get it resolved.
Serious crash control problem. I was driving on the interstate freeway in heavy traffic and a car cut in front of me. As I was trying to avoid an accident a large "brake" image appeared on my speedometer display distracting my eyes away from the road. The "safety feature" almost caused me to have a crash. I asked the dealership to disable the collision prevention system but they said they could not. This "safety technology" almost caused me to be in a serious accident by distracting me from the road.
Also reported on the 2018 Honda Accord
Head gasket failure
Other driver assistance problem
Cruise control failure
Other fuel system problem
Other brake problem
Other electrical problem
How far this goes
This page is kept out of search results because 188 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 188 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 2018 Honda Accord?
Across 63 owner reports that included an odometer reading, half were filed by 12,500 miles. A quarter were filed before 5,000 miles and a quarter after 25,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is unclassified problem on the 2018 Honda Accord?
188 reports have been filed with NHTSA, about 1.6 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