2015 Hyundai Sonata SE caught on fire after being parked in apartment building parking lot on 1/12/20. Car was serviced at certified Hyundai dealership repair shop on 1/10/20 for recall work and to investigate oil pressure light that would come on and off intermittently. Repair shop claimed there was an oil leak and recommended an oil change/valve cover gasket replacement (last oil change just under 5000 miles prior). Car began smelling as if something was burning later after leaving repair shop, as well as the next day, so shop was called back on 1/11/20 and message was left that it needed to be brought back in on Monday morning (1/13/20). Oil pressure light did not come back on, however, nor did any other warning lights. Car was driven sparingly in the neighborhood primarily for work purposes over the weekend and parked after approx. 12 minute commute home from work on Sunday evening (1/12/20). I returned a little over an hour later to discover the situation and learned that the fire dept. Had already come and gone. Immediately called police/fire dept. To find out what had happened and was informed that neighbors had called the police due to seeing it on fire about 10-15 minutes after I had parked the car. I am unclear of the exact nature of the problem, though oil appears to have been leaking (and burning - some light smoke was visible under hood on 1/11 & 1/12) after repairs, and fire is said to have started in the engine compartment. Insurance company was immediately notified as well and deemed the vehicle a total loss and towed it away for further investigation as to cause of fire on 1/14/20. Dealership where car was serviced 2 days prior is of concern since car appeared in worse condition after repairs than before, but I am uncertain of their liability in this case.

- Des Moines, IA, USA

The car suddenly loses the ability to accelerate making it very stressful to drive as you are not certain when this will happen. At first it is intermittent but eventually it simply stays that way once the issue begins while you are driving, hence the car will have an almost impossible time retaining speed on the highway or accelerating at a light or as you merge onto highways. Changing the driver mode to sport appears to have a positive effect as it causes much more aggressive gear shifting but it then stays in the same gear for too long reaching rps that feel unsafe for the engine itself. This is now the third tie this happens and it is also the more severe manifestation of the problem, . the first time the dealer asserted they were not able to diagnose it but returned the car without the problem. The second time it happened they apologized and said that it was an issue with the engines computer algorithm, that apparently the computer learns from the way in which one drives and so is adaptive but that sometimes it can become corrupted. This third time the dealer told me it would take only a couple of hours to fix but now it has been three days and they have not called me back. They did leave a message that apparently they are ordering parts and will be fixing it. My issue now is that its a third time and it is clear that something in the car is defective and now we are going to be almost completely paranoid of it happening again at a critically dangerous intersection or merge area. We have been lucky so far but it is a family car and I do not feel safe in the car anymore given the repeating nature of this problem and the lack of information out there form the manufacturer as to what exactly is going on.

- Reston, VA, USA

8-10 times in the past year while driving car in freeway hybrid system warning comes up prompting to safely pull over and turn off car. Car then starts slowing down. Have taken the vehicle to Hyundai service 4-5 times and they keep finding broken parts that dont fix the problem.

- Vallejo, CA, USA

I was driving 60mph with cruise on a state highway. When the car accelerated there was a noise I couldn't identify. I immediately pulled to the side of the road to investigate and the noise sounded like rocks grinding. I checked oil and it was full. When car was restarted the noise resumed. I turned off the car and it didn't start again. Towed to a garage and they said there were metal shavings in the oil and motor was locked up. 125K miles and regularly maintained. Engine was replaced at a cost of $4000.

- Springfield, MO, USA

The contact owns a 2015 Hyundai Sonata. While driving 60 mph, the vehicle began to stall and the check engine warning indicator flashed. The contact pulled into a gas station and, upon depressing the accelerator pedal, the vehicle rumbled. The contact took the vehicle to an independent mechanic where the vehicle was diagnosed with a faulty engine knock sensor. The contact spoke with southtowne Hyundai (7665 ga-85, riverdale, ga 30274) and was informed that there were no recalls on the vehicle. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was 73,000.

- Atlanta, GA, USA

Check engine light displays, reduced power acceleration a sped a clicking noise from the engine when speed is increased

- Burbank, CA, USA

I was driving my 2015 Hyundai Sonata hybrid and all of a sudden the engine light came on and my car just cut off I was able to hit the brakes.I was driving on the city street I thank god I wasn't on the highway.after that the car would not cut on again.had to get the car towed

- Richmond, VA, USA

I was driving to work Friday 12-6 at approx. 7:24am and the check engine light comes on and flashing. I then pulled over to see what was wrong and I turned the car off and back on the car will then only accelerate to 10 mph then slowly accelerate but will not go past 63. I was able to drive it back to a mechanic who then diagnosed it and stated it was a P3126 obd-II diagnostic powertrain (P) trouble code description P3126 engine trouble code is about exhaust gas recirculation sensor B circuit high. Reason for P3126 code the reason of P3126 obd-II engine trouble code is engine oil temperature sensor malfunction. P3126 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.contacted Hyundai and justin asked me was the check engine flashing I advised him yes. He said it was more than likely a recall. He made me an appt for Tuesday 12-10 @ 7:15am. I proceeded to drive my vehicle to Hyundai and I was told it's not a recall and they are going to charge me $175 just to diagnose the problem. I drove it back to my job in flowery branch ga and contacted geico to tow it back to my house.

- Clarkesville, GA, USA

Engine knocking, checked the oil and it was fine. Drove it straight home which was about three miles. The next day I was driving it to work and the knocking was getting louder and louder, pulled over, checked the oil and it was sludge. Took it to grease monkey, which was directly across the street from where I was. They changed the oil and put an engine cleaner through it. Still the same. They took a look at it and said that the engine is seizing. I always maintained the car and no warning lights ever came on until after the oil change, then the check engine light came on. Mileage around 113,000 when this happened.

- Phoenix, AZ, USA

The engine consumes extraordinary amounts of engine oil. At 72,000 miles, over 70% of engine oil is lost between an oil change range of 7500 miles. Radiator fluid levels drop as well. I believe the engine has internal problems that lead to engine oil and radiator fluid to enter the combustion chamber. This has been the case since very early days and was also reported to us by other service centers. It has gotten worse over time.

- League City, TX, USA

The contact owns a 2015 Hyundai Sonata. While driving 80 mph, the vehicle seized without warning, lost power, and jerked. The contact managed to veer to the shoulder of the road where the vehicle lost complete power. When the vehicle was turned off and restarted, it resumed normal operation. The vehicle was taken to lithia Hyundai of odessa (5000 john ben shepperd pkwy, odessa, tx 79762, (432) 614-0345) to be diagnosed, but the results were unknown. The dealer stated that they did not have parts to repair the engine. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 96,000. The VIN was unknown.

- Danvers, TX, USA

Engine has to many recalls did all of them. Engine staring shaking and burning oil and consuming fuel. This vehicle could be a hazard or can stop in middle of highway and provoking accident or death.

- Burke, VA, USA

Car, hybrid, died at a light. Warning light and buzzer alarm !charging system error do not drive. Was able to restart car. Stopped at a store, let it sit. Restarted again engine light stayed in got home where I was temporarily staying, waited a few hours restarted no warning lights.was a Friday, messaged service mgr, he was off called Monday car brought in Tuesday. Error code off on board diagnostics was P1B70. They loaded software update 19 hc 002H service bulletin. Car 2015 this problem was a issue with earlier years..still around unfortunately. Should have been a safety recall..cars are dying while driving. Dealer expressed opinion that this should resolve issue if not call immediately.

- Sunrise, FL, USA

The car suddenly lost power during the city drive, by the same time, engine light was on. The acceleration pedal does not work properly, (envn with the pedal all the way to the floor, it is around 30K RPM with ~30 mph, and the car didn't running smoothly (hesitate to move). Shut down and start again. Everything is back to normal, just the engine light is still on. This is recurring problem, it is been the fifth or sixth time start from the second of the ownership (~8000 miles). Everytime take the car to dealership, they told me did not find anything wrong and car computer was updated (I guess they mean the engine light code was cleared)

- Glendora, CA, USA

My vehicle rattles and knocks all the time. It has a little over 65000 miles and has done this for years. I have taken it to the dealership and told it supposed to sound like that. The car has no power what so ever climbing hills and my gas mileage keeps going down. I have heard this is a common problem but I want it fixed as I dont fee this car is reliable as it has quit running one time before because of this problem. Something needs to be done before someones car cuts off and causes an accident and someone get killed. It does this anytime you give the car throttle. The second thing is the poor stitching in the leather seats. My seats started coming apart at the seams and the dealer says its not covered under warranty but I purchased a full 10 year 100000 mile warranty. This is poor materials and workmashipl I drive the car about 14 days a month and it shouldn't already have a coming apart.

- Spanish Fort, AL, USA

Engine tapping, knocking noise by the pistons Hyundai recall for software upgrade then two months later engine went into protection mode max speed only 57 mph so they change knock sensor then 5 days later back to Hyundai with same problem engine running in protection mode with the blinking engine light again this is the third time. Knock sensor worked find the first time because something happen with the knew one. The car was in motion on every case engine is no good.

- Cave Creek, AZ, USA

The contact owns a 2015 Hyundai Sonata. While driving, the vehicle lost power and made a knocking and ticking noise. The noise occurred from the engine during acceleration and the check engine warning indicator illuminated. The contact was able to drive the vehicle home. The following day, the vehicle was towed to napleton Hyundai of carmel (4200 E 96th St, indianapolis, in 46240, (844) 729-4217) where it was diagnosed that code: P1326 (knock sensor activation) failed and needed to be replaced. The technician replaced the knock and torque sensors. After the vehicle was repaired, the check engine indicator illuminated again. The vehicle was taken back to the same dealer and the engine was replaced; however, the check engine indicator continued to illuminate. The vehicle was taken back to the dealer where unknown parts were ordered and replaced on the vehicle. The manufacturer was made aware of the failure and provided case number: 16277030. The failure mileage was approximately 51,000.

- Indianapolis, IN, USA

On October 8, 2019, I was driving on hwy 285 in Georgia, when my Hyundai Sonata began to reduce its speed despite me pressing the gas. As I attempted to get to safety, a warning light flashed 'transmission hot..stop'. there was no warning other than that light that popped on at that moment. While driving through an intersection my car completely turned off. I made several attempts to restart with no luck. There was no prior warning and I maintain regularly oil changes. I had to have the vehicle towed to a local Hyundai dealership, where I was told that my motor/engine needed to be completely repaired. When I asked what the cause was, I was informed that my 3rd piston had exploded and damaged the motor to the point of needing replacement. The mechanic stated that it was not know why this occurred. I was also instructed that the manufacturer was no longer making the motor that I have in my car and I would not to purchase a used one. This would cost me approximately $5000 at the least. I have only had this car for less than two years and requiring a new motor is unbelievable. The mechanic shared that I was lucky that the car did not catch on fire while I was driving it.

- Douglasville, GA, USA

At 45,800 miles my Sonata could not reach 60 mph and the RPM could not reach 2000. I also noticed the gas mileage drops the Sonata had 35,000 miles on it. I took the car to the dealer and was told it needs new engine.

- Alhambra, CA, USA

While driving 30-40 mph the car turn off.. for no reason.. I have always done maintenance on the car from dealership. Just put in a new battery.. and car turn off.. this has happened 2 times

- Milpitas, CA, USA