2015 Hyundai Sonata Complaint Log

Hybrid system failure leading to complete power loss while driving.

Seat Belts will not recoil. This is a very unsafe situation.

My daughter’s Car stalled in middle of freeway twice. The second time it ruined the engine it was confirmed by my auto repair shop. Transporting it to Hyundai dealership. It’s a 2015 Hyundai sonata engine huge issue. Almost catastrophic stalling on the freeway. Please help- thanks.

The contact owns a 2015 Hyundai Sonata. The contact stated while driving at an undisclosed speed, the sunroof wind deflector detached from the vehicle and flew off. The local dealer where the vehicle was serviced under an unknown recall related to the failure was contacted; however, the contact was informed that the recall repair was completed in 2017 as a one-time free repair. The manufacturer was contacted and confirmed that the recall was a one-time repair. The vehicle was not repaired. The failure mileage was approximately 150,000.

While driving our vehicle (Hyundai 2015 Sonata Hybrid) around 25 MPH speed in city road... the vehicle stopped completely by itself in few seconds. Got the message "Hybrid System Warning! Safely Stop and Do not Drive" in dashboard and beep beep sounds. Thank god, no accident, the vehicles behand able to stop and avoid the collision. This is serious SAFETY issue, as this could cause accidents if vehicle stops by itself while driving. This is 3rd time in last few years with this vehicles. The recent incident happened was on 5/1/2024 morning around 8.00 am. We went to the Hyundai Service Center and they did looked at the codes and ran some scans and they found nothing wrong. And they said it could be some wrong system warning and can be ignored, as they can't reproduce the issue. And told us to report if this happens, but the worry is that, if this happens it could be serious life threating accident or injuries. They said they also got similar other Sonata Hybrid got same issue reported same day, but they can't find root cause. Same issue was happened last on 9/30/2022 and one before in that same year. They can't find the root cause that time too. They just updated software that time...and hoped that will fix. But the issue repeated again. While searching on the internet, found many people reporting this same error message and suddenly stopping the vehicle by itself. Very scary safety concern. So that's why we are reporting this to NHTSA. To take action on this with the Hyundai and investigate more. Now worried when we drive this vehicle. I have all pictures taken when this issues happened on 5/1/24 and also 9/30/22. I will share those here. Let me know if you need more information on this.

The air bag sensor located in the front passenger seat does not function. It is available for inspection upon request. Because the sensor doesn't engage, the passenger-side air bag will not deploy in the event of an accident, leaving my passenger at risk of serious injury or death. The Hyundai of Cool Springs dealership in Franklin, TN, has inspected the car and confirmed that the sensor is not functioning. The sensor, if properly working, will show a glowing red light on the dashboard that goes on when a passenger sits in the passenger seat, and goes off after a few seconds. In the case of my car, however, the dashboard light goes on when a passenger sits and stays on (glowing red) the entire time the passenger is seated. This defective dashboard light, according to the Hyundai service technician, indicates that the sensor needs to be replaced. The cost the technician quoted is prohibitive at $3,500.

I have had my car serviced twice by the Hyundai dealership for the same exact issue. I believe I was told it was a knock sensor. A refurbished engine ended up being put in. The car is still having the same issues as when I first got it serviced in 2021/2022. My car is sputtering, loses power when accelerating and stalling. My car has always had an oil consumption issue and is causing additional issues with spark plugs.

Intake Camshaft, Camshaft Position Actuator Circuit and Brake Booster are the system that failed all in the same week. My safety is being put at risk because of the bad brake booster I almost rear end someone else. My car doesn’t accelerate has it should initially which could cause a wreck. Problems has been confirmed by independent service center. My car has been inspected by mechanics. My engine light is on and when diagnosed the codes P0011-00 & P0010-00 pop up.

THE ENGINE FAILURE, ROD BEARINGS FAILURE CAUSING THE ENGINE TO LOSE POWER WHILE DRIVING, CAR NOT ABLE TPO ACCELARATE, CHECK ENGINE LIGHT AND OTHER LIGHTS POPPED ON. LOUD NOISE COMING FROM ENGINE SOUNDED LIKE WORN BELTS, KNOCKING NOISE AND OIL PRESSURE LOSS. MY DAUGHTER'S SAFETY AND MINE WAS PUT MAJOR RISK. THIS HAPPENED AS I WAS DRIVING THE CAR LOST POWER SEIZED UP. COULD HAVE CAUSED A MAJOR ACCIDIENT. THE DEALER AND MECHANICS HAVE INSPECTED AND CONFIRMED THE PROBLEM. THE CHECK ENGINE LIGHT CAME ON AND OTHER LIGHTS. VERY STRESSFUL AND CAUSED MAJOR ANXIETY DUE TO THIS.

White pearl paint is peeling on the hood, roof and trunk.

The contact owns a 2015 Hyundai Sonata. The contact stated while driving 35 MPH, the check engine warning light illuminated. The contact stated that the vehicle went into LIMP Mode, was jerking, and failed to exceed 45 MPH. The contact pulled over to the side of the road. The vehicle was towed to the dealer, where the engine knock sensor was replaced; however, the failure recurred while driving. The vehicle was driven to a nearby dealer, where it was determined that the engine needed to be replaced due to the connecting rod bearing failure. The dealer filed a claim with the manufacturer; however, the claim was denied. The dealer replaced the two engine knock sensors and the main fuel lines. Additionally, the fuel tank was drained; however, the failure persisted. The vehicle was driven to the dealer, where it was determined that the engine needed to be replaced due to connecting rod bearing failure. The dealer filed another claim with the manufacturer. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 12,257.

Was driving on the access road... Luckily .... When I lost all power. Turned off my car and wouldn't restart. Had it towed , 1 month later and $7500 had to get a rebuilt engine. Which now I'm having 100s of issues. Love my car but this is literally stressing me out. Bought the car 2 months before this all happened

My Sonata is experiencing Engine failure due to excessive and irregular oil consumption. The Hyundai dealership conducted an oil consumption test in which it was discovered that the car is excessively using oil. My Safety and the safety of others were put at risk as the engine slow and stalls without prior warning and the check engine light does not come on until the vehicle slows and stalls. The vehicle was inspected at a Hyundai dealership and submitted to Hyundai for all or partial financial assistance for a new Engine and in turn was declined by Hyundai even though they have a know issue of their Engines consuming an unusually high rate of oil.

The check engine light began flashing so I shut the car off and had it towed to West Allis Hyundai. The service garage took the car for a test drive (even though the user manual states not to run the engine), and according to the dealer, the car engine "blew up" and stopped running. I assume the engine seized up. the engine only has 43,000 miles and should be covered by the 100,000, 10 year warranty that comes from the manufacturer. The car has been at the dealer for over a week without any definitive answer if the engine will be replaced by Hyundai under warranty. Also, the dealer has not provided a loaner car so I am without any transportation while my is in the shop. Note that since I've had the car all maintenance has been done by West Allis Hyundai.

Engine light comes on and alarm stating hybrid sytem failure unsafe to drive. Car loses power and can't be driven. Had this fixed twice. This time it only was fixed for two days.

The contact owns a 2015 Hyundai Sonata. The contact stated when starting the vehicle, the vehicle experienced a hard start and shuddered. No warning light was illuminated. The vehicle was taken to an unknown dealer, where washer fluid was poured into the vehicle. The vehicle was then taken to an independent mechanic, who informed the contact that the oil was 2 quarts low, and the mileage was below the next recommended oil change. The contact stated that the failure recurred. The vehicle was taken to an unknown second dealer, where the contact was informed that no signs of oil leak and smoke were found during the inspection. The dealer determined that oil could be leaking in the engine. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 95,000.

I had my engine replaced less than 5000 miles ago and now my check engine light is on once again causing more problems and Hyundai is very unwilling to do anything

The contact owns a 2015 Hyundai Sonata. The contact stated that while the vehicle was idling at a stop light, the vehicle lost motive power and stalled. The vehicle failed to restart. The vehicle was towed to the local dealer to be diagnosed. The contact was informed that the engine was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer and local dealer were not yet notified of the failure. The failure mileage was 170,000.

The contact owns a 2015 Hyundai Sonata. The contact stated while operating the vehicle, the front passenger’s side seat air bag warning light illuminated and remained illuminated. The vehicle was taken to the local dealer, and it was determined that the front passenger’s seat air bag sensor was faulty. The contact was informed that the front passenger’s seat sensor needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 80,000.

Check engine light illuminates repeatedly causing the car to go into limp mode (max speed of 30) & at times it stalls while driving. I purchased it on 9/30/23 & check engine warning light has illuminated 20+ since then. I’ve repaired and addressed all of the codes. It also occasionally accelerates abruptly when stopped causing the car in front of me to be hit from behind. In addition to all of the above safety issues, it also has an extremely high oil consumption rate. The engine is faulty and needs to be replaced.

Car stalled then started smoking followed by flames. We exited vehicles and ran a safe distance away and called 911

The contact owns a 2015 Hyundai Sonata. The contact stated that while accelerating to 60 MPH, the vehicle stopped. Several warning lights were illuminated. The vehicle was towed to a local mechanic and a diagnostic test was performed. The mechanic completed a tune-up, and changed the oil, and the brakes however, the failure persisted. The mechanic informed the contact that the engine needed to be replaced and the vehicle was towed to the residence. The vehicle was not repaired due to the cost. The manufacturer was not made aware of the failure. The failure mileage was unknown.

The contact owns a 2015 Hyundai Sonata. The contact stated that the vehicle was taken to an independent mechanic and was informed that the vehicle was consuming an excessive amount of engine oil. The contact was informed that the failure might be related to NHTSA Campaign Number: 17V226000 (ENGINE AND ENGINE COOLING); however, the VIN was not included. The vehicle was taken to a local dealer and the contact was informed that the vehicle was not included in the recall. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 80,000.

The headlights are stating headlight low and triangle with a exclamation ️ appears.

Knocking noise in the engine, super loud sound, engine sized up because there was a lubrication failure from the oil pump, rock arm bearing was gone on cylinder 3 crankshaft catastrophic damage, and tulsa hyundai send an application to hyundai USA and they refuse to fix my car because the previous owner didn't do 4 recalls that are not even close to be related to the problem in the engine. Abs light recall, seat belt recall, parking brake light switch recall and smart junction box recall, none of this has anything to do with the negligent fabrication on rotating parts in the oil pump, and rock arm bearings, this is very upsetting and disappointing that a recognized brand like hiunday did such a big mistake in fabrication and they found the perfect stupid excuse to wave their responsibility to the customers that invest their money on this cars

I am reporting a recurring and unresolved hybrid system failure in my 2015 Hyundai Sonata Hybrid Limited that poses an ongoing safety risk to me and my family. The issue involves a "Hybrid System Warning – Safely Stop and Do Not Drive" message that appears randomly while driving, causing the vehicle to jerking and creating dangerous conditions on the road. This issue first occurred in February 2024 and has persisted through October 2025 despite repeated service visits and costly out-of-pocket repairs. The hybrid battery was eventually replaced after 8+ months of delays, but the exact same warning and jerking symptoms returned in March 2025 and have never been properly resolved. The dealership (Crown Hyundai in St. Petersburg, FL) and Hyundai corporate case management have been unable to replicate or diagnose the problem consistently, and continue returning the vehicle to me in unsafe condition. On October 3, 2025, the same warning reappeared and the vehicle was dropped off again for yet another service attempt. Again on October 7, 2025, I was told to pick up my car, they could not replicate the issue and could not find a code to respond to. To date, I’ve paid $1,748.65 for a repair (air flappers) that did not solve the issue, and spent months without use of the vehicle, continuing to pay for insurance during that time. I believe this is a defective hybrid propulsion system that meets the threshold for investigation and possibly a recall, given the repeat safety risk and lack of resolution. Please investigate this matter for the safety of other drivers as well.

Car was going approximately 50 miles an hour on a side street when warning lights went on, brakes stopped working, and the engine smoked and appeared to catch on fire. Car was steered into a parking lot and abruptly placed in park. Occupant grabbed valuables and quickly exited the vehicle. At that point, the front of the vehicle, under the hood went up in flames.

I am the only owner of a 2015 Hyundai Sonata: in December 2018 the car had a new engine put in when the mileage was 106,894 due to the engine burning oil much too fast. On 9/20/2023 while getting an oil change Jiffy Lube told me the oil was almost empty, as the engine was burning oil way too fast again. This was at mileage 162,148. I checked the oil periodically to make sure the engine had oil. I added a quart around 163k and on Feb 3, 2024 I checked the oil at 165,000# miles on it barely had any oil in. I filled with about four quarts and then I started the car. Upon starting there was an explosion in the engine and all the oil drained out. My complaint is Hyundai replaced a know defective engine with the same defective engine, which unknowingly to me but me at risk driving the car. I am lucky the engine did not blow while driving on the highway. In researching after the engine blew the second time I found there was class action suits for this same problem in the past and there was some settlement. I do not know if the NHTSA was involved

The same as all other Hyundai I’ve seen from 2011 to 2019. Error code reads P1326 manufacturer control. the vehicle shut off on me 65 on the highway without warning. hook up the car to the computer and it has returned no code so we troubleshoot by that the starter was burnt up and we replace it everything‘s fine for two days. Then of course I get the manufacturer code P1326 and find out that 100s are not thousands of Hyundai have been recalled for the same issue. Also, like all other complaints, I’ve seen car went into limp mode or reduced power mode and the check engine light is flashing

Engine has an oil consumption issue.

About 20000 miles ago, I was informed by my servicing center that my Sonata came it without oil on the dipstick. My car currently has 90k and my engine is burning about 1qt of oil every 1000 miles. Many people have been having issues with these engines from Hyundai and Kia. My engine has been a part of a class action lawsuit regarding this problem but my specific model is never included even though the engine is. I've been checking my oil regularly and keep oil in my trunk at all time since this first happened but I'm getting close to my car being out of warranty. When I get my oil regularly changed at 3k - 4k miles, well below the the suggested 6k, is it my responsibility to add oil all the time or is it the responsibility of Hyundai to replace my engine for being faulty? My warranty expiration is coming up and I'm keeping this engine alive by adding the needed oil and even though my engine is part of a class action lawsuit. I'm not going to get any benefit of warranty extension or replacement from that lawsuit as my specific model isn't listed. I have a Sonata Eco 1.6 liter and it always the Sonata 2.0 and 2.4 they are listed even though the Tuscan with a 1.6 engine, the same as mine are included. There are thousands upon thousands of these vehicles on the road burning oil. It's bad for the environment and a ticking time bomb for everyone driving them. We need an investigation into these faulty engines and an actual fix from Hyundai and Kia.

I was driving down [XXX], about 20 miles southwest of Atlanta when I saw flames and smoke come underneath the hood of my car. I pulled over to the right shoulder and I was able to exit the vehicle before the entire front engine compartment was melted and engulfed in flames. Local FD responded and extinguished the fire. FD was unable to explain what may have caused the issue. Vehicle is a total loss. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My 2015 Sonata will stall out dropping speeds to 12-24 when i slightly merge, when I turn ect. Then it won’t accelerate for what seems like 10 minutes realistically 2 minutes maybe 3 Then will slowly regain speed. I’ve almost wrecked twice Share care with daughter and she’s been victim to it way way more. This is scary and Hyundai won’t stay behind their product Local dealership won’t fix recalls so we have to go over 120 miles for repairs. The recall isn’t even for transmission engine

The contact owns a 2015 Hyundai Sonata. The contact stated that the ABS and traction control warning lights were illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the ABS module needed to be replaced. The vehicle was repaired, but the failure recurred. The manufacturer was contacted, who opened a case, but no assistance was provided. The failure mileage was approximately 84,107.

When I press on the brake the vehicle accelerate before it slows down. Sometime the car accelerates for no reason. This has been a recent problem for the past few months. The engine has been replaced from a prior recall.

Panoramic Sunroof randomly exploded while i was driving down the street. Appears to be a known issue and a class action lawsuit has been filed.

Oil consumption issues. Had a brand new factory motor to replace original motor due to engine failure from oil consumption issues on June 29 2020 at 154,285 miles. The new motor only has 56,665 miles on it and I'm having to add extra oil in between changes because it is bone dry after about 1800 miles from oil change each time.

In the first incident(2020) after the check engine light was on, the car was towed and needed the valve cover and fuel pump gasket replaced due to leakage. In November of 2023, the check engine light kept flashing and again the car was towed to the dealer. The valve cover was removed and we were told a new engine was needed, but we would have to pay for it. We were old that we have neglected to keep oil in the vehicle.

My break went out while trying to make a stop.

My hydraulic brake booster went out, Very dangerous i almost had an accident, the car doesn’t stop, there are no brakes the car would not stop I’f the hydraulic brake booster goes out you have no brakes and if you’re over 50 miles an hour the E break barely does anything it just sounds like you grinding into the ground. Very scary and I had a child in the car. Towed car to Hyundai.

The wheel of my car as I would turn literally locked on me and the car went off to the other side of roadand engine shuts off .this seems to only happen when I make a right turn quickly it is random and I never. Know when this will occur it hurt my hand because the wheel snapped out of my hand as to keep straight . So it's very scary I am looking for help to get itfixed . But I won't feel safe driving it until then I had to buy another car so that I could drive meanwhile I see what I can do about this car

After Hyundai Dealership performed RECALL 953, vehicle is having uneven engine idling, especially while stopped at traffic lights/stopsigns and when starting the vehicle. It is noticeable enough that I am concerned the theta ii engine is failing, or about to fail.

The contact owns a 2015 Hyundai Sonata. The contact stated while driving at an undisclosed speed and approaching a stop light, the brake pedal was depressed, and the vehicle stalled. The contact shifted to neutral and pushed the vehicle off the road and parked in a nearby lot. The contact stated that the vehicle was inoperable. The vehicle had not been taken to the dealer to be diagnosed. The vehicle had not been diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 180,000.

My car was smoking from under the hood. I had it towed to the dealer. Service dept said valve cover. Picked car up 2 days later and less than 1/4 mile from dealer the car was smoking, I called service department was told it was normal. Stopped at red light, smoking intense, turned back to dealer. I lost my brakes, stopped by the grace of God. Passerby told me to get out, my car was on fire. 2 minutes later it was fully engulfed. Total loss.

Car repeatedly illuminates check engine light since my purchase on 9/30/2023. When this happens the car goes into limp mode, fails to accelarate and at times stalls. This has happened on the freeway and at busy intersections while driving.

Steering Column making Clicking sound. Steering Wheel completely locked during a turn.

Between oil change intervals, the check engine light flickered intermittently. I checked the oil level and it was very low. I added 3 quarts of oil and took it to my Hyundai dealership. They performed all the oil consumption tests and told us that the car now burns seven-tenths of a quart every 1000 miles. Hyundai USA claims that this is acceptable oil consumption. I disagree of course. I called my service adviser at the dealership and requested that Hyundai replace the engine because a 2015 Hyundai Sonata with only 70K miles should not be burning that much oil. He agreed and told me to keep monitoring the oil consumption and if it burns 1 quart or more after 1000 miles, to bring it back.

Car stalls intermittently. When at a stop sign or red light, then when my turn to go I step on gas peddle, car starts to go, then stalls. I have to let off gas pedal and step on it again to get car going. This is dangerous as it leaves me in intersection and vulnerable to oncoming traffic. I had a mechanic check it out and they cleaned Throttle body, but that did not fix problem. No trouble codes showing up apparently.

Recall notifications for Hyundai campaign 251 but no remedy available since early 2023. Finally learned a remedy was available, made online appointment with my dealership (Future Hyundai of Concord, Concord, CA) but when I arrived for my appointment, they said they did not have the part. That was April 29, 2024. I was told to follow up in a week, which I did. Part still not available. Followed up several more times to which I have not received any response. I am driving a potentially very dangerous car now awaiting this recall remedy. Last year I waited 5 months for a new Hybrid battery with similar lack of communication and delays.

The contact owns a 2015 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the car stalled and struggled to remain running. The contact stated two days later the vehicle was parked and while hitching the RV to the trailer hitch, the vehicle independently moved and collided with a dolly. The contact stated that the dolly was used to load the RV to the hitch. The vehicle was towed to the dealer. The vehicle was being repaired. The dealer informed the contact that the vehicle could not be diagnosed until the vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 60,000.