2016 Hyundai Sonata Engine Problems

Source: NHTSA · Updated Oct 6, 2026 · 452 complaints analyzed

Owners have filed 452 complaints with NHTSA about engine problems on the 2016 Hyundai Sonata, 62% of all complaints for this model year. Half of the reports with a mileage happened before 82,500 miles. The words owners use most often: “oil consumption” (16% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Oil consumption: mentioned in 73 of 452 complaints (16%)
  • Spark plugs: mentioned in 24 of 452 complaints (5%)

How much does it cost to fix?

Owners who wrote down what they paid or were quoted put the typical engine repair on the 2016 Hyundai Sonata at $4,750, and half of them between $1,400 and $8,700.

Based on 20 NHTSA complaints about this problem alone that state a repair bill or quote (2021–2025), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.

At what mileage do engine problems happen?

Based on 129 complaints that reported the odometer reading.

Under 10k miles5 · 4%
10k–25k miles12 · 9%
25k–50k miles16 · 12%
50k–75k miles25 · 19%
75k–100k miles22 · 17%
100k–150k miles44 · 34%
150k+ miles5 · 4%

How serious are the reports?

Of 452 complaints, 1 mention a crash, 19 a fire.

Hyundai Sonata engine complaints by model year

Peak: 2011, with 967 complaints
2001: 120012002: 52003: 320032004: 52005: 620052006: 442007: 4120072008: 482009: 5620092010: 292011: 96720119672012: 5672013: 73820132014: 3022015: 62820152016: 4522017: 38420172018: 2122019: 8720192020: 312021: 3420212022: 252023: 2820232024: 32025: 22025

n = 4,698 complaints · Source: NHTSA

Model yearEngine complaintsShare of that yearMedian miles
2025 Sonata212%—
2024 Sonata37%—
2023 Sonata2832%5,540
2022 Sonata2527%15,000
2021 Sonata3425%44,000
2020 Sonata3117%30,849
2019 Sonata8754%90,000
2018 Sonata21257%19,750
2017 Sonata38450%74,400
2016 Sonata45262%82,500
2015 Sonata62855%65,000
2014 Sonata30240%84,000
2013 Sonata73839%96,000
2012 Sonata56736%92,000
2011 Sonata96729%100,000
2010 Sonata298%70,000
2009 Sonata5612%108,300
2008 Sonata4811%114,000
2007 Sonata416%114,000
2006 Sonata444%100,000
2005 Sonata64%96,728
2004 Sonata52%130,000
2003 Sonata32%131,000
2002 Sonata52%145,000
2001 Sonata10%20,000

When owners reported it

Peak: 2023, with 109 complaints
2016: 4201642017: 9201792018: 112018112019: 182019182020: 282020282021: 532021532022: 692022692023: 10920231092024: 432024432025: 702025702026: 38202638

n = 452 complaints · Source: NHTSA

Related recalls (0)

No safety recall lists engine for the 2016 Hyundai Sonata. A pattern of complaints does not always lead to a recall.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

The contact owns a 2016 Hyundai Sonata. While the contact's daughter was driving 55 MPH, the engine seized. The contact stated that the failure had occurred while the contact's two minor grandchildren were inside the vehicle during the failure. The vehicle was towed to an independent mechanic. The…

Received Oct 6, 2026 · NHTSA complaint 11769408

While driving on the freeway, the check engine light started flashing and the gas pedal became useless. This put the driver and the passenger of the car in massive danger as they could no longer accelerate on the freeway. Luckily, they were able to get off the freeway without causing an accident…

Received Oct 4, 2026 · NHTSA complaint 11768862

I am concerned that the engine may seize or stall without warning while driving, creating a risk of crash, injury, or death. The Theta II engine defect is known to cause engine seizure, stalling, and fire. Hyundai has denied warranty coverage based on mileage and second-owner status — both of…

Received Sep 15, 2026 · NHTSA complaint 11764572
Hyundai Sonata
Hyundai Sonata 2.5 T-GDI N Line (VIII, Facelift). Representative photo; appearance varies by model year. Photo: © M 93, CC BY-SA 3.0 de, via Wikimedia Commons.

Frequently asked questions

Do all 2016 Hyundai Sonatas have engine problems?

No. NHTSA has 452 owner complaints about engine for the 2016 Hyundai Sonata (62% of the 727 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the 2016 Hyundai Sonata engine?

No recall currently lists engine for this vehicle.

At what mileage do engine problems start?

The median reported mileage is 82,500 miles: half of the reports with a mileage came before that.

How much does it cost to fix engine problems on the 2016 Hyundai Sonata?

Owners report a typical cost of $4,750 (half paid between $1,400 and $8,700), from 20 complaints that state a repair bill or quote, in 2026 dollars.

What do owners say about engine problems on the 2016 Hyundai Sonata?

The most frequent phrase is “oil consumption”, in 73 of 452 complaints, followed by “spark plugs” (24).

Other 2016 Hyundai Sonata problems

See all 2016 Hyundai Sonata problems or engine problems across all Sonata years.