Other fuel system problem on the 2015 Hyundai Sonata
3 crashes 5 fires 2 injuries 10 of the 40 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 fuel system problem gets reported
Owners of the 2015 Hyundai Sonata report other fuel system problem at a median of 45,000 miles. A quarter of the reports come in before 10,000 miles and a quarter after 85,000 miles, from 19 reports that carried an odometer reading.
A part like this is normally expected to survive 90,000 miles. It is the 9th most-reported problem on this model year.
The mileage distribution
The reported range runs from 2,000 miles at the tenth percentile to 120,000 miles at the ninetieth, a spread of 119,400 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.
42% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 2,000 miles | 11,000 miles | 44,000 miles | 83,500 miles | 121,400 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, 5 a fire and 2 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–$2,200 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 18 model years of this car. It shows up earliest on the 2020, at a median of 1,600 miles, and latest on the 2003 at 145,000 miles.
By volume the 2013 carries the most reports, with 135; the 2015 has 40. 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.
Brand new car purchased and few issues. 1. Gas gauge only goes up to 7/8 even with full tank fill up. 2. Gas mileage does not seem to indicate correct mileage. With full tank gas, the indicator shows 450+ miles, but actual mileage is 300~350 miles. 3. Error occurs when playing songs from iphone 6 using USB cable. *tr
Went to pass a tractor. Notice the car was not down shifting. Pushed harder on the pedal and heard a click. After that the car down shifted (I believe this click maybe normal as I notice it on other cars but other mfgs did not have such a violent sounding click. ) the issues is that the pedal got stuck down and I had to use my foot to manually release the pedal from fully down (I reached speeds of around 90 before I could release the pedal from the fully down position).
I purchased a used 2015 hyundai sonata with 43k miles. I have had it for three months with minor problems such as sluggish acceleration, hard deceleration when removing foot from gas pedal, and a noisy engine. However, on 4-8-2016 at about 7:30 am, I was attempting a left turn on a busy metropolitan street when the 2015 hyundai sonata shut down suddenly, completely turned off! All the warning lights on the dash lit up like a christmas tree and then went dead. The 2015 sonata came to a stop, and there was a truck approaching at a high speed rate that had to swerve around me to prevent a collision with me. I was lucky the driver was paying attention. This problem is very dangerous and it is just a matter of time before someone is killed due to this problem, which seems to be occurring in many 2015 hyundai sonata vehicles. I believe hyundai must know about this and hyundai probably knows what is causing this safety issue with the 2015 sonata. Hyundai or NHTSA need to recall the 2015 hyundai sonata vehicles asap!! If nothing else tell the owners what the problem is so that they can repair it on their own dime!
Also reported on the 2015 Hyundai Sonata
Other engine problem
Other electrical problem
Excessive oil consumption
Other powertrain problem
Other body or interior problem
Other steering problem
How far this goes
Complaints are voluntary, so 40 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 fuel system problem happen on the 2015 Hyundai Sonata?
Across 19 owner reports that included an odometer reading, half were filed by 45,000 miles. A quarter were filed before 10,000 miles and a quarter after 85,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is other fuel system problem on the 2015 Hyundai Sonata?
40 reports have been filed with NHTSA, about 0.3 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