Bought car 4/2017 5 days later engine locked 4/2017 replaced by Hyundai under warranty and received back 5/2017. Was driving started smelling antifreeze, car never showed overheat, pulled over, it blew radiator cap off, bought new cap, went back to car, added fluid and cap, drive 1/10 of a mile and car cut off and would not start back. My mechanic picked up and reports water in engine and metal in oil. Same as first engine. Hyundai claims no warranty on this new engine. This engine has metal in oil the same as their recall.

- Winston Salem, NC, USA

The contact owns a 2011 Hyundai Sonata. While driving approximately 25-30 mph, the vehicle shut off and was unable to be restarted. The vehicle was towed to an independent mechanic who diagnosed that the engine needed to be replaced. The mechanic stated that the vehicle was included in NHTSA campaign number: 15V568000 (engine) and should be repaired by an authorized dealer. The vehicle was towed to pride Hyundai (located at 777 lynnway, lynn, MA 01905, (781) 592-3800) and repaired per the recall. Afterwards, the vehicle experienced independent acceleration while driving. The contact stated that several days later, the vehicle failed to start. The contact was informed to have the vehicle towed to the dealer for diagnostic testing, but the contact declined. The manufacturer was notified of the failure. The approximate failure mileage was 117,000. The VIN was not available.

- Swantscott, MA, USA

The contact owns a 2011 Hyundai Sonata. While driving at high speeds, the electric power steering and check oil warning indicators illuminated. The vehicle was not taken to a dealer for diagnostic testing or repairs. The manufacturer was not contacted. The VIN was not available. The failure mileage was approximately 81,000.

- Bellflower, CA, USA

A motor oil burning smell fills the interior cabin of car. Over years dealers say no leaks top or bottom but burning more then a quart of oil between 3,000 oil changes. It's a burning fumes smell like something is burning abnormally in the engine. If it's not leaking oil then its an engine internal issue possibly prone to fire starting. I find the dealerships refuse to knowledge the 2011 Sonata 2.4 theta engines are rated for failure extremely poorly.these engines are known to seize at highway speeds.

- Mount Dora, FL, USA

2011 Hyundai Sonata. Consumer writes in regards to being unaware of engine recall and requests reimbursement from company.

- Parlin, NJ, USA

While driving on highway the vehicle stalled and stopped. Engine lights went on. The car started after 15 minutes

- Morrisville, PA, USA

Sat evening driving thru downtown dallas car suddenly and without warning lost power and refused to start again. Luckily able to coast to exit ramp. Tow bill of $300 to get off roadway. Monday morning another $110 to tow to mechanic. Mechanic says engine is gone, but can't explain why. It simply seized up. New engine required.

- Bonham, TX, USA

Car stopped in the middle of the freeway while 120 miles from home. Engine, oil, battery and eps lights all came on at the same time and car slowed down until it stopped. I was barely able to move it from the middle lane to the right side of the freeway. My car was still over the white line and it could have easily been hit by oncoming traffic. Car was smoking from the passenger side. Towed to nearby mechanic who stated that car had no oil. I just received an oil change less than two weeks prior and had 2500 miles left before I needed another one. Mechanic stated that I need a new engine. I just purchased this car in Feb 2018. Warranty is fighting me on fixing it so now I have payments on a car that doesnt work and its still 120 miles away. I had to get a rental just to get my family home safely. This vehicle is clearly having engine issues that no one seems to care about but my family was in extreme danger and no one seems to care about that.

- Columbus, OH, USA

Internal engine noise and unusual amount of oil consumption, approximately 1 qt. Per 500 miles. Found usa today dated 09/25/2015 stating posted by the NHTSA that Hyundai announced a recall of my vehicle for this exact problem but local Hyundai dealer stated that my vehicle was not covered by this safety recall.

- Blackwood, NJ, USA

Engine stalls at high speeds and slow down dramatically. Have taken to hyudai twice, they say the engine recall has nothing to do with stalling only knocking and they want to charge me $104 diagnostic charge when clearly all the newspaper say that it possibly has debris which can clog fuel lines and cause stalling, they said this in not covered under the warranty or recall. It has happened numerous times in the past three years, but they won't do anything about it. Last time is listed below

- Oviedo, FL, USA

Car just won't start at all it has oil and stuff in it and it won't start it's a push start I got it from car max about 5 months ago.

- Chicago, IL, USA

The thermostat housing is plastic molded over a steel (metal) core. Where the housing is bolted to the engine over the input and output coolant orifices an internal piece of plastic flaked off the steel core behind the gasket surrounding the input orifice. At rest no coolant leaked out of the cooling system. However, at operating temperature and pressure, the coolant sprayed out of the engine in a fine mist/spray. Although there was an odor of coolant while driving, all searches around the heater core, under vehicle resulted in no evidence of coolant leak. On an extended trip at 103,000 miles enough coolant evacuated the cooling system to facilitate a blown head gasket. Yet there were no warning lights indicating overheating. The blown gasket was discovered when there was a sound of gurgling liquids originating from the coolant reservoir when we reached our destination, a thick sludge of coolant and oil permeated throughout the engine, heater core, throttle body and radiator. It was during repairs the thermostat housing was found to have the interior damage. If we had been driving 30 miles further than we did, the engine would have seized at highway speed, undoubtedly causing an accident. Thank god we stopped when we did.

- Jackson, MI, USA

The contact owns a 2011 Hyundai Sonata. While accelerating to 40 mph, the instrument panel began to flash and the radio and air conditioning turned on and off. The vehicle completely shut off. The contact pulled over and attempted to restart the vehicle. The contact noticed smoke and flames from the driver's side of the hood. There were no injuries and a police report was filed. The dealer and manufacturer were not notified. The cause of the failure was not diagnosed. The failure mileage was 144,000. The VIN was unknown. * consumer stated mileage on the car was 143,424. Updated 11/8/18

- Medford, NY, USA

The contact owns a 2011 Hyundai Sonata. While driving 75 mph, the engine failed and the vehicle stalled without warning. The vehicle was towed to duncan Hyundai (2050 roanoke street, christiansburg, Virginia 24073, (540) 382-2100) where it was diagnosed that the motor failed. The manufacturer was made aware of the failure and provided case number: 114-85-200. The failure mileage was approximately 79,000.

- Evans, GA, USA

Car was towed to dealership no service code showed up said I need to buy a new starter / authorized repair they drove it it stalled they restarted it engine caught fire oil wasn't going through engine etc etc etc damage extensive needs new engine

- Grand Blanc, MI, USA

Driving on highway...in motion...failed to accelerate

- Grand Blanc, MI, USA

Engine was recalled in 2015, the warranty for the engine recalled was extended to 10 years 120,000 mile warranty. I just recently bought a 2011 Hyundai Sonata turbo 2.0 with 146,000 miles. After less than a month of my son driving it the engine began stalling out and smelled of smoke. I contacted Hyundai to see if they would perform the inspection and do the repair work they stated they would not since the car exceeded had exceeded the mileage warranty. I am currently having a new engine installed, and would like the NHTSA to investigate and see if I can get a reimbursement for the engine replacement cost

- Southaven, MS, USA

Engine oil light keeps apprearing and then disappearing. Oil is disappearing like crazy, car is stalling on the road. Was going about 30 miles per hour

- Massillon, OH, USA

Takata recall my 2011 Hyundai Sonata limited has been having problems with the engine not turning completely. My car is a push to start, so when holding the brake and pushing the start button the car still hesitates to come on but the lights on the dashboard do so I know it's not a battery issue. This has happened a couple years ago and I was stranded in my car at work, after several tries it eventually switches over and comes on. I've read several complaints from other Hyundai Sonata owners having the same exact issue, I'm hoping Hyundai takes action in resolving this malfunction.

- Rixeyville, VA, USA

Engine seized up while driving again. The engine was replaced 2 years ago with the Hyundai engine recall campaign. The vehicle has been maintained but Hyundai will not cover the engine even though it is under warranty. I was driving down 35 in dallas with my 6 year old son and the engine seized up and I could not control the vehicle.

- Carrollton, TX, USA