The contact owns a 2011 Hyundai Sonata. While driving at approximately 60 mph, the vehicle jerked. In addition, the vehicle was unable to start. The failure occurred intermittently. The manufacturer was not notified of the failure. The failure mileage was 104,000.

- Shalmette, LA, USA

The contact owns a 2011 Hyundai Sonata. While driving approximately 65 mph, a loud knocking noise emitted from the engine compartment. The failure recurred intermittently. The vehicle was taken to the dealer. The VIN was included in NHTSA campaign number: 15V568000 (engine); however, the part needed to perform the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The approximate failure mileage was 90,000.

- Antioch, CA, USA

We purchased the car used in 2012. In August of 2015, the engine sized while my spouse was driving to work. On the interstate at about 55mph. We ended up having to replace the entire engine to the tune of $4000+. this should not have happened to a car that is not even 5 years old. This is not our only issue with this make/model and not my first complaint.

- Moreland, GA, USA

The contact owns a 2011 Hyundai Sonata. While driving at 25 mph, the vehicle stalled. The contact was unable to restart the vehicle. The check engine warning light illuminated. The vehicle was towed to an independent mechanic who diagnosed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of he failure. The VIN was included in NHTSA campaign number: 15V568000 (engine). The failure mileage was 77,000.

- Fort Worth, TX, USA

The contact owns a 2011 Hyundai Sonata. The contact stated that while driving at approximately 30 mph, the vehicle failed to accelerate when the accelerator pedal was depressed and various warning lights illuminated. In addition, the vehicle stalled. The vehicle was able to restart after the second attempt. On another occasion, the vehicle was not able to start and was towed to the dealer. The contact received a notification of NHTSA campaign number: 15V568000 (engine) however, the recall and remedy part were not available. The manufacturer was not notified of the failure. The approximate failure mileage was 85,000.

- Villa Park, CA, USA

The contact owns a 2011 Hyundai Sonata. The contact stated that while driving at 40 mph, the vehicle stalled without warning. The contact stated that smoke began to fill the cabin of the vehicle, but suddenly stopped. The vehicle was towed to the dealer where it was diagnosed that the engine needed to be replaced. The vehicle was not repaired. The vehicle was included in NHTSA campaign number: 15V568000 (engine).the manufacturer was made aware of the failure. The failure mileage was 48,000.

- Wilmer, AL, USA

Driving home, the Sonata revved high and staled out, a tow truck had to be called on a busy interstate. The car still will not start, it is financed still and now will not run. This is consistent with the following recall information: Summary: Hyundai motor America (Hyundai) is recalling certain model year 2011-2012 Sonata vehicles manufactured December 11, 2009, to April 12, 2012 at Hyundai motor manufacturing Alabama and equipped with either a 2.0 liter or 2.4 liter gasoline direct injection engine. In the affected vehicles, metallic debris may not have been fully removed during manufacturing of the engine crankshaft. If the debris was not completely removed, oil flow may be restricted through the connecting rod bearings, causing connecting rod damage and possible engine failure. A worn connecting rod bearing will produce a metallic, cyclic knocking noise from the engine and possible engine failure. Safety risk: Engine failure would result in a vehicle stall, increasing the risk of a crash.

- Annandale, MN, USA

There are open factory recalls on this car and I have not received a letter to fix the deficiencies before it gets to become an issue of potential physical harm on the roadway. Driving down the road the front spring just broke a section off about a foot long, now drives dangerously brakes, transmission, engine, head lamps, suspension

- Annandale, MN, USA

10/4/2015 I was dropping my daughter off when my car stalled cars had to swerve out of the way to prevent from hitting us. The car was stuck in the middle of the street I had to push it over so that we could be safe. I had to get the car towed to the dealership. Its been two days and still they have not looked at my car and have not given me a rental car. I looked on line and I see that there is 5 recalls for my car and one is an engine issue which causes the car to stall. I do not feel safe in this car anymore and need something to be done since this is stopping me from going to work and picking up my daughter. I do not want this dangerous car anymore due to engine recall

- Springfield, MA, USA

The contact owns a 2011 Hyundai Sonata. While driving at various speeds, there was a loud abnormal noise coming from the vehicle. The vehicle was towed to an independent mechanic where it was diagnosed that the engine was failing and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and stated that the VIN was included in NHTSA campaign number: 15V568000 (engine); however, the part to do the repair was unavailable. The failure mileage was approximately 20,000. Updated 1/12/2016 the consumer stated the warranty was extended an additional 20,000 miles. The consumer stated the loud noise was due to a defective pulley that was replaced. The failure was still present. Updated 10/30/2017

- Hazle Township, PA, USA

The contact owns a 2011 Hyundai Sonata. While operating the vehicle, a knocking and clicking noise were present coming from the engine. The vehicle was taken to the dealer who was unable to determine the cause of the failure. The manufacturer was not notified of the failure. The failure mileage was 68,000.

- Plant City, FL, USA

I was driving on the freeway at approximately 65mph when my Sonata unexpectedly completely shut down. I was able to coast off until the car dies on the off-ramp and is completely immobile. My car then had a small engine fire, but was put out and became a stationary obstacle during rush-hour traffic forcing other vehicles to go around and nearly caused several catastrophic accidents as a result. In contacting the dealership, I learned of the recall, though seeing as the recall has not been implemented, many drivers continue to drive their ailed vehicles because those of us who work cannot be without our vehicles for an unknown amount of time. Hyundai needs to fix this immediately as more and more vehicles will begin to die because drivers are told they will "have to wait until parts come in, there's nothing we can do until they come in or Hyundai tells us we can implement the recall."

- Edmonds, WA, USA

2011 Hyundai Sonata has a "no start" condition which has occurred in the past leaving the motorist stranded. Very common problem with Sonatas. Dealer will not walk us through procedure to start car in order to get it to the dealership to fix problem. This problem was fixed before but now has happened again.

- Lynbrook, NY, USA

The contact owns a 2011 Hyundai Sonata. The contact stated that the vehicle stalled without warning while driving 45 mph on the highway. The contact was able to coast the vehicle over to the side of the road. The vehicle was towed to the dealer and they indicated that the engine locked and needed to be replaced. The dealer did not mention if the vehicle was included in NHTSA campaign number: 15V568000 (engine). The contact had not received a recall notification. The contact was to consult with the manufacturer to determine the remedy to repair the vehicle. The approximate failure mileage was 170,000.

- East Stroudsburg, PA, USA

The contact owns a 2011 Hyundai Sonata. While driving 35 mph, the engine stalled without warning. The vehicle was towed to a dealer where it was diagnosed that the engine needed to be replaced. The vehicle was not repaired. The contact received notification of NHTSA campaign numbers: 14V433000 (service brakes, hydraulic), 14V434000 (power train) and 15V568000 (engine). The manufacturer was made aware of the failure. The failure mileage was approximately 70,000.

- Kansas City, KS, USA

The contact owns a 2011 Hyundai Sonata. While driving approximately 45 mph, the vehicle shut off. The contact was able to coast over to the right shoulder and restart the vehicle. The vehicle also made a knocking noise. The contact called the insurance company to have the vehicle towed to the dealer. The technician stated that the motor needed to be replaced. The vehicle was not repaired. The manufacturer was notified. The approximate failure mileage was 124,000.

- Valdosta, GA, USA

11/20/10: Steering column shaft. 5/18/11: Brake switch. Car will not start or shift out of gear. C1513 code. Internal short in brake switch. 3/26/12: Brake switch. Car will not start. C1513 code. Internal short in brake switch. Shift lever knob repl. 8/5/13: Brake switch. Recall. Repl left front axle assembly. 7/7/14: Inhib switch-check engine light on. Car is shifting hard, especially from P-R & then to D. jolting sensation like someone hit from behind. Code P0705-transm range sensor malf. 10/1/14: Brake tube. Shift lever cable. 10/16/14: Code P0106: Map sensor. Flexible coupling-clicking sound & wobbling when turning. Told me I was over 70K. Indicated I was under 70K when I made this appt. Mgr waived cost. 2/26/15: Starter-would not start-towed. 5/15/15: Rear passenger brake light-bulb burned out & melted into socket. Tail lamp also melted. Tech was able to heat & reshape socket. 8/3/15: Brake light switch-car dead after work. Internal malfunction & caused brake lights to stay on. Hesitation during acceleration. Declined accurate auto to look further as car is still under warranty so I will take it to hub. It improved. 8/25/15: Brake light switch. Severe hesitation-almost rear-ended felt like it would stall (tech noticed). Informed accurate the car was still under warranty so I will take it to hub. Hesitation improved. 8/27/15: Diag testing-hub waived cost of diag testing-no codes found. Unable to duplicate hesitation. Hesitation occurred when leaving. 9/21/15: Brake light switch-brake lights on. Drive side brake light is out. Hesitation worse-felt as if it would stall! driver side brake lamp bulb. Driver side tail lamp overheated & warped. Eventually replace tail lamp assembly. Declined for accurate to do further testing on the hesitation as the car was still under warranty so I will take it back to hub. Hesitation improved. To date, still does not run smooth.

- Tomball, TX, USA

As I was driving the vehicle, I was experiencing loss of power and even engine failure. Re-started and continued to proceed. Traveling approximately 25 miles per hour down hill coasting, engine died for the third time in less than 4 blocks. Pulled over attempted to re-start again and heard a loud bang under the hood. Pull off to side of road, to view lose of oil and steam from engine. Open hood view smoke and plenty of oil sprayed out back of engine. No power or ability to move vehicle. Called tow truck and once received information from mechanic that rod went through engine block. I repaired the vehicle with $4800 cost and a used 2013 engine. Come to find out, several hundred 2011 Hyundai Sonata engine are have same issue.

- Council Bluffs, IA, USA

On Sept. 3, 2015 while driving on the expressway I experienced the engine locked up and immediately pulled onto shoulder. I tried to restart the engine and the car began to smoke. Had it towed to darcy Hyundai in joliet. Hyundai informed me that the engine seized up and the starter was burned out and it was out of warranty and said to repair it with a replacement engine would be 5800 dollars and at that point I did not have the money and my credit cards were maxed out. And then I had to asked my father for advice either to repair or replace the vehicle. We decided it would be more practical to purchase a used car from car-max and because of my financial position my father had to extend himself and sign for the car. This 2011 Hyundai Sonata was also in my fathers name due to a bankruptcy.

- Plainfield, IL, USA

My wife and I bought a 2011 Hyundai Sonata on August 28th, 2015 from a dealership, but after driving the vehicle for a period of 10 days, the engine keeps running with knocking noise; a noise which my wife and I were not sure as to which part of the engine it was emanating from. We though maybe it was just a rock and would subside after few drives, but it didn't. on September 25th, 2015, while my wife was driving to the store, the vehicle stalled at a stop sign, but after removing the keys off the ignition and re-cranking the engine, it started running and the knocking noise went off, but the engine light came on afterward. My wife took it to the dealership we bought it from for a check up and repair, but the dealership's maintenance shop was unable to fix the vehicle for the reason that it had not reached 30 days since we bought the vehicle for the warrant that we bought to kick in. This was very frustrating and puzzling for the dealership to act this way to a customer who just bought a vehicle.

- Fort Worth , TX, USA