Notes: The 2011 Sonata has a seriously defective engine that seizes without warning. It was awarded the dubious honor of being the first CarTalk / CarComplaints Turd of the Week in late September 2015.

A class action lawsuit was filed in May 2015 against Hyundai that claims the 2.4L Sonata engine is defective. More info here.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
81,427 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2011 Hyundai Sonata accessories - exterior problems

accessories - exterior problem

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2011 Hyundai Sonata Owner Comments

problem #7

Nov 232018


  • 115,000 miles


The contact owns a 2011 Hyundai Sonata. While driving highway speeds, the contact heard an abnormal noise above her head. Suddenly, the sun roof exploded while the slider was open. Glass fragments fell on the driver while the vehicle was in motion. There were no injuries. A diagnostic appointment was made with the dealer (allen turner Hyundai, 6000 pensacola blvd, pensacola, fl 32505, 1-(850) 479-9667). The manufacturer was notified of the failure. The vehicle had not been diagnosed or repaired. The approximate failure mileage was 115,000. The VIN was unknown.

- Ocean Springs, MS, USA

problem #6

Dec 222016


  • 160,000 miles
The morning of December 22,2016 about 7:30 am headed to work, suddenly I hear something sounding like a gun shot near my head!! my sunroof had exploded!! scared the heck out of me!! I was driving about 45-55 mph on a highway. I don't know how I did not wreck my car!!

- Jacksonville, FL, USA

problem #5

Oct 272016

Sonata 4-cyl

  • 79,000 miles
Driving down a residential street at approximately 40 mph when the sun/moonroof shattered. No debris struck the roof.

- Sylvania, OH, USA

problem #4

Jul 312015


  • 30,000 miles


The contact owns a 2011 Hyundai Sonata. While driving at an unknown speed, the sun roof exploded without warning. The vehicle was taken to a dealer and repaired, but the failure could not be diagnosed. The manufacturer was not made aware of the failure. The approximate failure mileage was 30,000.

- Lakeland, FL, USA

problem #3

Nov 082014

Sonata 4-cyl

  • 68,000 miles
Driving on interstate for approx 1 hour, when sunroof exploded outwards, no road debris hit the vehicle to cause exploding sunroof, it was not an extreme temperature change. Sound was like a gunshot inside the car, and thankful that the moonroof cover was closed at the time so that glass did not shower into the car while driving. Very frightening and could have easily caused accident. Going rounds with Hyundai right now to get repaired. Dealership stating that Hyundai will not cover the part. Dealership suggesting I file with my insurance company, however this was a fault issue with product, not insurance related. Vehicle under warranty and still having issues with the dealership.

- Ormond Beach, FL, USA

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problem #2

Mar 082014

Sonata 4-cyl

  • 80,000 miles
The contact owns a 2011 Hyundai Sonata. The contact stated that while driving approximately 65 mph, the glass sunroof suddenly exploded and shattered causing a very loud booming sound. The contact indicated that the sunroof was closed during the incident and nothing made contact with the glass to cause the defect. The manufacturer was notified of the incident but no solution was offered. The failure mileage was 80,000...updated 04-24-14 the consumer stated the dealer and manufacturer refused to repair the damage at their expense. Updated 05/14/14

- Kearney, MO, USA

problem #1

Nov 202013


  • 37,987 miles
I was driving on the highway heard what sound like an explosion. Almost wreck the vehicle from the noise it made. My children started to scream and cry. Then I heard glass flying off my car. Pulled over to see the sunroof was shattered into a millions pieces. I call Hyundai and was told the only sunroof recall they have is for the veloster which from what I was told was the same thing that happened to me. I have not received a call back from the dealership in regards to my concerns about this issue.

- Orlando, FL, USA

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