The contact owns a 2012 Hyundai Sonata. While driving various speeds, an abnormal noise was heard coming from the engine without warning. The vehicle was taken to a dealer where the cause of the failure could not be determined. The vehicle was not repaired. The contact received notification of NHTSA campaign number: 15V568000 (engine). The manufacturer was not notified of the failure. The failure mileage was approximately 57,000.

- Pharr, TX, USA

The contact owns a 2012 Hyundai Sonata. The contact stated that the vehicle stalled while exiting the highway and the contact heard a knocking sound. The vehicle was taken to the dealer to be diagnosed, but not repaired. The contact received notification of NHTSA campaign number: 15V568000 (engine). The part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was 65,000.

- Tobyhanna, PA, USA

The contact owns a 2012 Hyundai Sonata. The contact stated that while driving at 45 mph, an abnormal burning odor was noticed inside of the vehicle and a strong fuel odor emitted from the vehicle intermittently. In addition, the contact stated that a knocking sound was heard when the vehicle was idle. The vehicle was taken to the dealer where it was diagnosed but the failure was unable to be determined. The contact received a notification of NHTSA campaign number: 15V568000 (engine) however, the dealer stated that the vehicle did not require the recall remedy. The manufacturer was made aware of the failure. The failure mileage was 42,000.

- Decatur, GA, USA

The engine oil pan was resealed five times and still its leaking. When they resealed the second time, they replaced the oil pan as well. After that it was resealed three more times and the car is at the dealer for sixth reseal. They are replacing the pan again. The brake caliper pistons are exhibiting excessive rust which I have not seen in my life while owning and maintaining various cars. The field engineer is saying that its normal and I don't agree with that. What I have seen based on that it's a design flaw. The caliper piston should be pressing completely against the brake pad surface area where as small portion of the caliper remains in non contact with the pad and the salt and slush during the winter gets into it making it rust which will impede the braking operation in future and may cause a fatal crash. Attached photographs are showing pack rust inside the piston on both the driver and passenger side.

- Wheaton, IL, USA

The contact owns a 2012 Hyundai Sonata. The contact received notification of NHTSA campaign number: 15V568000 (engine); however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

- San Mateo, CA, USA

The contact owns a 2012 Hyundai Sonata. The contact received a notice for NHTSA campaign number: 15V568000 (engine); however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. The manufacturer had not been made aware of the failure. Parts distribution disconnect.

- Oaklyn, NJ, USA

The contact owns a 2012 Hyundai Sonata. The contact stated that there was an abnormal sound emitting from the vehicle without warning. The vehicle was not diagnosed or repaired. In addition, the contact stated that while driving at an unknown speed, the engine stalled and fluid was leaking from the vehicle. The vehicle was towed to the dealer but was not diagnosed or repaired. The contact was notified of the NHTSA campaign number: 15V568000 (engine). The manufacturer was notified of the failure. The failure mileage was not available.

- Stone Mountain, GA, USA

The contact owns a 2012 Hyundai Sonata. The contact received a recall notification for NHTSA campaign number: 15V568000 (engine) and stated that the part needed was unavailable to perform the recall repair. The contact also stated that the engine stopped working in November of 2015. The manufacturer was notified of the failure. The vehicle has been at the dealer since November awaiting repairs. The VIN was invalid. The approximate failure mileage was 92,000. Parts distribution disconnect.

- Bellefonte, PA, USA

1/23/2016 8:02 am I received a call from my wife who was driving her 2012 Hyundai Sonata on the I-95 in South Florida on the way to work going approximately 70 mph, when she went to accelerate to overtake a car driving slower. All the lights on the dashboard went on and the car completely lost acceleration power and the speed dropped all the way down to 40 mph. When the speed reached 40 mph, she could not accelerate anymore and hence quickly pulled off to the side of the road (upon my request). Due to the heavy traffic, she was extremely lucky not to get into an accident. When I arrived to switch cars with her, the car started fine and accelerated appropriately. I took it straight to the Hyundai dealership who after running diagnostics came up the following: No codes stored in memory and no signs of what could have caused the car to act like this. They recommended a throttle body cleaning which is currently being completed (I am writing this from delray beach Hyundai). They stated the throttle body sticking may be the cause, but went on to admit they really had no idea as diagnostics gave them no information. After this incident, we are concerned that the car is no longer safe to drive and the fact the dealership has been unable to come up with any cause is even more of a concern.

- Boynton Beach, FL, USA

The contact owns a 2012 Hyundai Sonata. The contact stated that the recall notice for NHTSA campaign number: 15V568000 (engine) was received in October of 2015. After contacting the dealer on multiple occasions, the contact was informed that the parts needed to repair the vehicle were still not available and no estimated time for receiving the parts could be given. The contact had not experienced a failure. Parts distribution disconnect.

- Lynwood, IL, USA

The contact owns a 2012 Hyundai Sonata. While driving 50 mph, various warning lights illuminated before the vehicle stalled. In addition, the steering wheel became difficult to maneuver. The VIN was included in NHTSA campaign number: 15V568000 (engine). The manufacturer was not made aware of the failure. The approximate failure mileage was 105,000.

- Washington, DC, USA

The contact owns a 2012 Hyundai Sonata. While driving 75 mph, the vehicle lost power and the brakes failed. The contact coasted over to the side of the road. The vehicle was towed to the dealer where it was diagnosed that the engine failed and needed to be replaced. The manufacturer was notified of the failure. The contact received notification of NHTSA campaign number: 15V568000 (engine). The approximate failure mileage was 70,000.

- Oxford, GA, USA

The contact owns a 2012 Hyundai Sonata. The contact receivied notification of NHTSA campaign number: 15V568000 (engine); however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not availiable.

- Johnston, RI, USA

Car stalled while merging on freeway without any warning. Parked car in the emergency lane but had trouble starting car. Finally when car started it only ran for a couple of minutes before stalling a second time while on the street. Cause unknown. About 3 weeks later I started to hear a loud metallic noise come from the engine car stalled at a red light. I believe it has to do with recall #15V568000.

- Lynwood, CA, USA

The contact owns a 2012 Hyundai Sonata. The contact received notification of NHTSA campaign number: 15V568000 (engine) however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the issue. The contact had not experienced a failure. Parts distribution disconnect.

- Fredericksburg, VA, USA

The contact owns a 2012 Hyundai Sonata. The contact started the vehicle and a knocking noise emitted from the engine area. The noise grew louder while driving at any speed. 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 manufacturer was not notified of the failure. The approximate failure mileage was 46,000.

- New Ellenton, SC, USA

The contact owns a 2012 Hyundai Sonata. While driving at a high speed, the accelerator pedal was depressed, but the vehicle hesitated before moving forward. In addition, there was a knocking noise coming from the engine compartment and there was a higher consumption of engine oil than usual. The engine and low pressure warning lights illuminated. The failure recurred on numerous occasions. The vehicle was taken to a 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) however, the part needed to repair the vehicle was unavailable. The manufacturer was notified of the failure. The failure mileage was 48,000. VIN tool confirms parts not available.

- Mooresville, NC, USA

Issues with loud rattle noise coming from engine when accelerating over 40 mph.called Hyundai dealer service dept.& made appt to get inspected. Service rep claimed the mechanic heard no noise, so I had to go drive car with mechanic to identify noise. (noise obviously noticeable) after driving car with mechanic he said the cvts needed to be replaced. I took my recall notice for NHTSA # 15V-568. I asked if this was due to metal debris left in engine they said no.they gave me a rental.took 2 weeks for cvts to be replaced. About 8 days later after Hyundai returning car the noise was back. 3 weeks it got worse, called Hyundai dealer, took it back. The service rep. Again claims they dont hear anthing.have to drive my car again to identify noise to mechanic.its very frustrating. There still is no solution to rattle noise, recall or have they inspected my car properly for the car issues I am experiencing & reporting to them. The car stalled on my way to drop it off. Rpms increased but car did not accelerate. Let off gas pedal then tried again serveral times finally the car puttered & proceeded. My daughter was in the car with me so it was a scary situation for the both of us. I told the service rep what just happened. Left my car & they gave me rental.I have experienced loud noise from engine since I bought the car new in December 2011. Was told that the car is supposed to be loud & make the rattle noise bc of eco engine. As the years have gone by the car's performance has worsen. It has stalled several times. I dont feel safe. The car only has 45,000 miles. Ive had several issues battery, steerling wheel, radio, etc..bad experinces. Ive maintained the car with proper oil changes, reported all issues on file with Hyundai service dept.Hyundai needs to take responsibility & fix the problems with their cars & find a remedy to thier engine recall asap. Safety is important.

- Austin, TX, USA

The contact owns a 2012 Hyundai Sonata. The contact stated that while driving at 45 mph, there was an abnormal noise coming from the engine compartment of the vehicle. In addition, the vehicle lost power. The failure recurred on numerous occasions. The vehicle was not diagnosed or repaired. The contact received notification of NHTSA campaign number: 15V568000 (engine) however, the part needed to repair the vehicle was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the failure. The failure mileage was 42,000. Parts distribution disconnect.

- Riverview, FL, USA

Received email from ntsb a few months ago, received letter from manufacturer several weeks ago. Just checked with service dept and was told they still had not received the fix yet. Looking at all other complaints on here no one has the parts yet! is it cheaper to replace the engine than replace the part? it hasn't failed yet but seems like it's almost inevitable!

- Radcliff, KY, USA