AtWhatMileage
Engine · 80 owner reports

Complete engine failure or seizure on the 2013 Hyundai Sonata

5 fires 1 injury 6 of the 80 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.

Reports of this failure 80
With an odometer reading 50
Reports per 1,000 built 0.4 per 1,000
Filed below 36,000 miles 6%
Mention a crash, fire or injury 6
Typical repair $4,500–$12,000
What it means when it happens Critical
Rank among this year's problems 8th

When complete engine failure or seizure gets reported

Owners of the 2013 Hyundai Sonata report complete engine failure or seizure at a median of 105,000 miles. A quarter of the reports come in before 65,000 miles and a quarter after 125,000 miles, from 50 reports that carried an odometer reading.

A part like this is normally expected to survive 105,000 miles. It is the 8th most-reported problem on this model year.

The mileage distribution

The reported range runs from 45,000 miles at the tenth percentile to 155,000 miles at the ninetieth, a spread of 107,805 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.

6% of the dated reports were filed under 36,000 miles.

The whole distribution

Percentiles of the 50 odometer readings owners gave.
10th25thMedian 75th90th
46,195 miles 65,000 miles 105,000 miles 123,750 miles 154,000 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, 5 a fire and 1 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 $4,500–$12,000 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.

This mode is classified as critical, which means a failure can leave the car unable to stop, steer, or stay out of the way of traffic. It is weighted accordingly in the risk score.

The same failure on other years

The same failure is reported on 8 model years of this car. It shows up earliest on the 2015, at a median of 60,000 miles, and latest on the 2017 at 140,000 miles.

By volume the 2011 carries the most reports, with 140; the 2013 has 80. 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.

What owners wrote

Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.

I was driving on the interstate at 65mph and my engine seized without warning. I drifted off of the road and contacted hyundai roadside assistance. The car was towed to the dealership. After 3 business days of not getting any answers on the problem from the dealership they finally called me and said the engine had "sludge" and needed to be replaced. The car is a 2013 that I purchased in 10/2012 and had 45,000 miles at the time of this incident. I was informed that there was nothing else that could be done and the warranty was declined due to lack of maintenance (oil changes). I just had my oil changed the same day that this happened. I was told by the dealership that there was nothing else they could do and a used engine would cost $4,000+. I declined the service. The customer service at both hyundai and the dealership is awful. My car is still at the dealership. This is a serious safety issue that needs to be addressed.

45,000 miles NHTSA complaint 1197974 filed 2015-07-12

I was driving down the road at approximately 60 MPH when the engine locked up. I had no power and luckily there was no traffic coming and I was able to pull over to the side with no problems. Once I got stopped, I tried to start the engine but it would not turn over at all. I called a tow truck which took it to texoma hyundai in sherman, texas. Unfortunately my car was a little over 6,000 miles out of warranty. I thought the engine was covered up to 100,000 miles but since I bought it as a slightly used car the dealer said it wasn't covered. I ended up having to spend $4500 to have someone rebuild my motor. Upon asking about what might have happened the dealership told me they had no idea and had not had that kind of thing happen before. While my engine was being rebuilt I found on the internet that hyundai sonatas have been having all kinds of problems with their motors, so they weren't very truthful with me. They actual have lawsuits against them for defective motors which usually have problems between 60,000 and 90,000 miles. My car had 66,000 on it when this happened so that is in that time frame. I am now out $4500 with I…

66,000 miles NHTSA complaint 1231798 filed 2015-10-24

Tl* the contact owns a 2013 hyundai sonata. While driving 60 MPH without warning, the vehicle stalled. The contact was able to restart the vehicle on the first attempt. The contact stated that there was an abnormal noise coming from the engine before the vehicle stalled. The vehicle was towed to an independent mechanic. The contact was informed that the engine seized. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 35,000.

35,000 miles NHTSA complaint 1234863 filed 2015-11-03

Also reported on the 2013 Hyundai Sonata

Other engine problem

499 reports median 97k

Other steering problem

258 reports median 45k

Other electrical problem

146 reports median 80k

Other fuel system problem

135 reports median 102k

Other lighting problem

94 reports median 83k

How far this goes

Complaints are voluntary, so 80 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 complete engine failure or seizure happen on the 2013 Hyundai Sonata?

Across 50 owner reports that included an odometer reading, half were filed by 105,000 miles. A quarter were filed before 65,000 miles and a quarter after 125,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.

How common is complete engine failure or seizure on the 2013 Hyundai Sonata?

80 reports have been filed with NHTSA, about 0.4 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