The 6 Most Common Sonata Problems

We've pulled together a list of the most widespread problems that Sonata owners have to deal with.

Rodents Chew Hyundai's Soy Wiring

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The wiring in cars used to be coated in a petroleum-based plastic, but recently automakers, including Hyundai, have switched to a soy-based material. The soy is biodegradable and helps keep plastic out of the landfill (yay!). Unfortunately …

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Seat Belts Detatch During Crash

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Cars these days have airbags, sensors, crumple zones, tempered glass, and other safety features. But the OG, and arguably the most important, safety feature is the seat belt. Only trouble is, Hyundai's seem to be detatching from the body of…

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Blue Link Standard Feature?

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Messages that self-destruct and dastardly extortion – it all sounds like the plot to Mission Impossible, right? But it’s actually the story of Hyundai’s Blue Link systems. Pay up, or it’ll blow up ... or at least shut off.

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Hyundai Theta II Engine Knocking, Seizing, and Sludge

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The Theta II is a gasoline direct injection (GDI) engine that is well known for a lot of things and none of them are good. Bearing failure, metal debris riding on contaminated oil, piston ring defects, siezing, knocking, crying.

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Panoramic Sunroof Explodes

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Hyundai refuses to acknowledge that their sunroofs have been exploding under normal driving conditions, but they’re offering plenty of coverage to owners if (or when) it happens thanks to a 2019 lawsuit settlement.

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Hyundai's Self-Peeling Paint

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Hyundai’s self-healing paint is advertised to heal minor scratches using a chemical compound called scratch recovery clear. However, owners content over time that same compound allows the paint to come off in large sheets.

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What Sonata Owners Complain About

Sometimes it helps just to tally up the complaints and see where the biggest stacks are. Use this information to learn about troublespots or to run for the hills.

Worst Topics

Worst Years

Sonata Generations

Generations are groups of model years where few, if any, changes were made to the vehicle which means their model years tend to break in similar ways. The Sonata has 7 generations available in North American markets.

What Owners Say About Their Sonata

My driver door handle broke this time. Extremely frustrated. I was carrying several things and literally used my pinky finger to open the door, the door swung open but I heard that horrible snap. I now have three broken handles and have to either leave my window rolled down to open it from the inside or crawl in from the rear passenger side door, though there's apparently a pretty good chance that's going to break too.

This is something that needs to be addressed. There is no way to operate a vehicle if you can not even get inside and this has been happening too often with 2010 Hyundai Sonata. I will not purchase another one of these vehicles again.

Hyundai Theta II Engine Knocking, Seizing, and Sludge

This was the third engine failure for this vehicle and the last. I am not going to go through this again and will slowly drive the vehicle to an auto wrecking site and give it to them.

By the Numbers

  1. 2,100 complaints

    Running tally of owner grievances filed to CarComplaints.com.

  2. 606 service bulletins

    Documenting the process of troubleshooting common problems.

  3. 56 recall campaigns

    Time-sensitive, free repairs for widespread safety problems.

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