Other engine problem on the 2014 Hyundai Sonata
3 crashes 22 fires 4 injuries 29 of the 204 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.
When other engine problem gets reported
Owners of the 2014 Hyundai Sonata report other engine problem at a median of 89,000 miles. A quarter of the reports come in before 55,000 miles and a quarter after 120,000 miles, from 108 reports that carried an odometer reading.
A part like this is normally expected to survive 95,000 miles. It is the 1st most-reported problem on this model year.
The mileage distribution
The reported range runs from 15,000 miles at the tenth percentile to 142,000 miles at the ninetieth, a spread of 127,120 miles across the middle 80% of reports.
When the reports scatter this far, the mileage is telling you about how these cars were driven more than about the part itself.
16% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 14,980 miles | 55,000 miles | 89,407 miles | 120,082 miles | 142,100 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, 22 a fire 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.
Putting it right typically runs $300–$4,000 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.
The same failure on other years
The same failure is reported on 26 model years of this car. It shows up earliest on the 2023, at a median of 100 miles, and latest on the 2008 at 115,000 miles.
By volume the 2011 carries the most reports, with 596; the 2014 has 204. 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.
At approximately 5pm on october 10th 2014 I pulled out of a parking lot in harrisburg, nc. When the car reached 15 MPH it did not shift (the car is equipped with automatic transmission with shiftronic manual controls) and I had to shift the car manually into second gear and each successive gear. After doing so I noticed the car had turned off while driving. I was able to pull off the road with no incident and restart the car. The following day, I noticed clicking under the hood and took it into the dealer. After their examination they determined the engine had a defect. They are replacing the engine. *tr
Tl* the contact owns a 2014 hyundai sonata. The contact stated that while driving at approximately 75 MPH, the vehicle stalled and smoke emitted from under the hood of the vehicle without warning. The vehicle was not diagnosed or repaired. The contact received notification of NHTSA campaign number: 15v568000 (engine) however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The approximate failure mileage was 55,000. The VIN was not available. Vin tool confirms parts not available.
I heard a grinding engine noise from the car. I took it in to ask what the terrrible sound was, I was told the computer pulled a "internal engine failure" code and it was no longer able to be driven. I was told they had a recall on earlier models but not the year 2014. I was told it needed a new engine, metallic flakes were found upon investigation at hyundai. I was told if the car continued to be driven it had a high risk of seizing up during use which would cause an accident. I was told it was recalled then later told that year 2014 had not yet been recalled, but that it was covered under warranty. They have had the vehicle for 2 months now and are stating I need to call the consumer protection agency and notify them of the situation to encourage a recall.
Also reported on the 2014 Hyundai Sonata
Other electrical problem
Other lighting problem
Other fuel system problem
Tail light, brake light or signal failure
Other powertrain problem
Other brake problem
How far this goes
Complaints are voluntary, so 204 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 other engine problem happen on the 2014 Hyundai Sonata?
Across 108 owner reports that included an odometer reading, half were filed by 89,000 miles. A quarter were filed before 55,000 miles and a quarter after 120,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is other engine problem on the 2014 Hyundai Sonata?
204 reports have been filed with NHTSA, about 0.9 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